Extracting prog: 5m4.642160245s Minimizing prog: 23m18.49640951s Simplifying prog options: 0s Extracting C: 52.931449277s Simplifying C: 23m37.239028996s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41100, 0x20}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x0, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000a80)=ANY=[], 0x0) program did not crash program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 1m40s testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41100, 0x20}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x0, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000a80)=ANY=[], 0x0) program crashed: BUG: Bad page state in skb_pp_cow_data single: successfully extracted reproducer found reproducer with 5 syscalls minimizing guilty program testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41100, 0x20}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x0, @void}, 0x10) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41100, 0x20}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00'}) syz_emit_ethernet(0xfdef, &(0x7f0000000a80)=ANY=[], 0x0) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: socket$inet_tcp(0x2, 0x1, 0x0) r0 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41100, 0x20}, 0x94) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r0, 0x0, 0x25, 0x0, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000a80)=ANY=[], 0x0) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={0xffffffffffffffff, r1, 0x25, 0x0, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000a80)=ANY=[], 0x0) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41100, 0x20}, 0x94) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r0, r1, 0x25, 0x0, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000a80)=ANY=[], 0x0) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x0, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000a80)=ANY=[], 0x0) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, 0x0, &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41100, 0x20}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x0, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000a80)=ANY=[], 0x0) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41100, 0x20}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x0, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000a80)=ANY=[], 0x0) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], 0x0, 0x0, 0x0, 0x0, 0x41100, 0x20}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x0, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000a80)=ANY=[], 0x0) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41100, 0x20}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, 0x0) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, 0x0, 0x25, 0x0, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000a80)=ANY=[], 0x0) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41100, 0x20}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00'}) bpf$BPF_LINK_CREATE_XDP(0x1c, 0x0, 0x0) syz_emit_ethernet(0xfdef, &(0x7f0000000a80)=ANY=[], 0x0) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41100, 0x20}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x0, @void}, 0x10) syz_emit_ethernet(0xfdef, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data simplifying C reproducer testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program did not crash testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program did not crash testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41100, 0x20}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x0, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000a80)=ANY=[], 0x0) program crashed: BUG: Bad page state in skb_pp_cow_data validation run: crashed=true testing program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41100, 0x20}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x0, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000a80)=ANY=[], 0x0) program crashed: BUG: Bad page state in skb_pp_cow_data validation run: crashed=true testing program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41100, 0x20}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x0, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000a80)=ANY=[], 0x0) program crashed: BUG: Bad page state in skb_pp_cow_data validation run: crashed=true reproducing took 57m38.828067764s repro crashed as (corrupted=false): BUG: Bad page state in process syz.0.17 pfn:7723a page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807723af50 pfn:0x7723a flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807723af50 3fffffffffffffff 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178898662, free_ts 108126402605 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmems net/core/page_pool.c:663 [inline] page_pool_alloc_frag_netmem+0x421/0x9b0 net/core/page_pool.c:1072 page_pool_alloc_netmem include/net/page_pool/helpers.h:131 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb69/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7723b page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807723bf50 pfn:0x7723b flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807723bf50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178878973, free_ts 108126476282 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7723c page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807723cf50 pfn:0x7723c flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807723cf50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178860452, free_ts 108126511683 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7723d page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807723df50 pfn:0x7723d flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807723df50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178842082, free_ts 108126529607 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7723e page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807723ef50 pfn:0x7723e flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807723ef50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178823252, free_ts 108126547011 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7723f page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807723ff50 pfn:0x7723f flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807723ff50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178804945, free_ts 108126565240 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7bb38 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807bb38f50 pfn:0x7bb38 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807bb38f50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178786660, free_ts 108126582918 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7bb39 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807bb39f50 pfn:0x7bb39 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807bb39f50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178768204, free_ts 108126600812 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7bb3a page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807bb3af50 pfn:0x7bb3a flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807bb3af50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178750528, free_ts 108126684885 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7bb3b page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807bb3bf50 pfn:0x7bb3b flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807bb3bf50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178732185, free_ts 108126703814 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7bb3c page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807bb3cf50 pfn:0x7bb3c flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807bb3cf50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178714005, free_ts 108126720751 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7bb3d page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807bb3df50 pfn:0x7bb3d flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807bb3df50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178687382, free_ts 108126738469 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 final repro crashed as (corrupted=false): BUG: Bad page state in process syz.0.17 pfn:7723a page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807723af50 pfn:0x7723a flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807723af50 3fffffffffffffff 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178898662, free_ts 108126402605 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmems net/core/page_pool.c:663 [inline] page_pool_alloc_frag_netmem+0x421/0x9b0 net/core/page_pool.c:1072 page_pool_alloc_netmem include/net/page_pool/helpers.h:131 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb69/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7723b page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807723bf50 pfn:0x7723b flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807723bf50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178878973, free_ts 108126476282 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7723c page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807723cf50 pfn:0x7723c flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807723cf50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178860452, free_ts 108126511683 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7723d page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807723df50 pfn:0x7723d flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807723df50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178842082, free_ts 108126529607 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7723e page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807723ef50 pfn:0x7723e flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807723ef50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178823252, free_ts 108126547011 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7723f page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807723ff50 pfn:0x7723f flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807723ff50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178804945, free_ts 108126565240 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7bb38 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807bb38f50 pfn:0x7bb38 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807bb38f50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178786660, free_ts 108126582918 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7bb39 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807bb39f50 pfn:0x7bb39 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807bb39f50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178768204, free_ts 108126600812 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7bb3a page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807bb3af50 pfn:0x7bb3a flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807bb3af50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178750528, free_ts 108126684885 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7bb3b page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807bb3bf50 pfn:0x7bb3b flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807bb3bf50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178732185, free_ts 108126703814 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7bb3c page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807bb3cf50 pfn:0x7bb3c flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807bb3cf50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178714005, free_ts 108126720751 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003 BUG: Bad page state in process syz.0.17 pfn:7bb3d page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807bb3df50 pfn:0x7bb3d flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888021e88000 0000000000000000 raw: ffff88807bb3df50 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6054, tgid 6054 (syz.0.17), ts 108178687382, free_ts 108126738469 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845 prep_new_page mm/page_alloc.c:1853 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5178 __alloc_pages_noprof mm/page_alloc.c:5212 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5132 alloc_pages_bulk_node_noprof include/linux/gfp.h:255 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:612 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xb47/0x13e0 net/core/skbuff.c:952 netif_skb_check_for_xdp net/core/dev.c:5429 [inline] netif_receive_generic_xdp net/core/dev.c:5470 [inline] do_xdp_generic+0x699/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 36 tgid 36 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] sta_info_insert_finish net/mac80211/sta_info.c:894 [inline] sta_info_insert_rcu+0x7b8/0x2840 net/mac80211/sta_info.c:1009 ieee80211_ibss_finish_sta+0x293/0x380 net/mac80211/ibss.c:568 ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1092 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1573 [inline] ieee80211_ibss_rx_queued_mgmt+0x179b/0x2af0 net/mac80211/ibss.c:1600 ieee80211_iface_process_skb net/mac80211/iface.c:1702 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1756 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 Modules linked in: CPU: 0 UID: 0 PID: 6054 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 bad_page+0x180/0x1c0 mm/page_alloc.c:649 free_page_is_bad mm/page_alloc.c:1082 [inline] free_pages_prepare mm/page_alloc.c:1386 [inline] __free_frozen_pages+0xce2/0xd30 mm/page_alloc.c:2901 bpf_xdp_shrink_data net/core/filter.c:4191 [inline] bpf_xdp_frags_shrink_tail+0x4f7/0x7f0 net/core/filter.c:4215 ____bpf_xdp_adjust_tail net/core/filter.c:4237 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4230 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:721 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x606/0x13d0 net/core/dev.c:5360 netif_receive_generic_xdp net/core/dev.c:5476 [inline] do_xdp_generic+0x9f7/0x11a0 net/core/dev.c:5538 tun_get_user+0x2527/0x3e90 drivers/net/tun.c:1872 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff28ad8e1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007ffecbec7c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff28afe5fa0 RCX: 00007ff28ad8e1ff RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8 RBP: 00007ff28ae13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000 R13: 00007ff28afe5fa0 R14: 00007ff28afe5fa0 R15: 0000000000000003