Extracting prog: 4m13.941484504s Minimizing prog: 25m2.298409086s Simplifying prog options: 0s Extracting C: 50.861380012s Simplifying C: 21m1.929574542s 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}}): sendmsg$NL80211_CMD_SET_WDS_PEER-socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: sendmsg$NL80211_CMD_SET_WDS_PEER(0xffffffffffffffff, 0x0, 0x4040040) r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f0000000280)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x67}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=ANY=[], 0x0) program crashed: BUG: Bad page state in skb_pp_cow_data 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}}): sendmsg$NL80211_CMD_SET_WDS_PEER-socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: sendmsg$NL80211_CMD_SET_WDS_PEER(0xffffffffffffffff, 0x0, 0x4040040) r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f0000000280)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x67}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=ANY=[], 0x0) program crashed: BUG: Bad page state in skb_pp_cow_data single: successfully extracted reproducer found reproducer with 6 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}}): sendmsg$NL80211_CMD_SET_WDS_PEER-socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP detailed listing: executing program 0: sendmsg$NL80211_CMD_SET_WDS_PEER(0xffffffffffffffff, 0x0, 0x4040040) r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f0000000280)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x67}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @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}}): sendmsg$NL80211_CMD_SET_WDS_PEER-socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-syz_emit_ethernet detailed listing: executing program 0: sendmsg$NL80211_CMD_SET_WDS_PEER(0xffffffffffffffff, 0x0, 0x4040040) r0 = socket$inet_tcp(0x2, 0x1, 0x0) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f0000000280)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x67}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00'}) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=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}}): sendmsg$NL80211_CMD_SET_WDS_PEER-socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: sendmsg$NL80211_CMD_SET_WDS_PEER(0xffffffffffffffff, 0x0, 0x4040040) socket$inet_tcp(0x2, 0x1, 0x0) r0 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f0000000280)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x67}, 0x94) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r0, 0x0, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=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}}): sendmsg$NL80211_CMD_SET_WDS_PEER-socket$inet_tcp-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: sendmsg$NL80211_CMD_SET_WDS_PEER(0xffffffffffffffff, 0x0, 0x4040040) r0 = socket$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, 0x4, @void}, 0x10) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=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}}): sendmsg$NL80211_CMD_SET_WDS_PEER-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: sendmsg$NL80211_CMD_SET_WDS_PEER(0xffffffffffffffff, 0x0, 0x4040040) r0 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f0000000280)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x67}, 0x94) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r0, r1, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=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"], &(0x7f0000000280)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x67}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=ANY=[], 0x0) program crashed: BUG: Bad page state in skb_pp_cow_data 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, 0x4, @void}, 0x10) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=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, &(0x7f0000000280)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x67}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=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], &(0x7f0000000280)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x67}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=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, 0x0, 0x67}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=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"], &(0x7f0000000280)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x67}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, 0x0) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, 0x0, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=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"], &(0x7f0000000280)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x67}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00'}) bpf$BPF_LINK_CREATE_XDP(0x1c, 0x0, 0x0) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=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"], &(0x7f0000000280)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x67}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfe54, 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"], &(0x7f0000000280)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x67}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=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"], &(0x7f0000000280)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x67}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=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"], &(0x7f0000000280)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x67}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfe54, &(0x7f0000001b00)=ANY=[], 0x0) program crashed: BUG: Bad page state in skb_pp_cow_data validation run: crashed=true reproducing took 55m42.806708517s repro crashed as (corrupted=false): BUG: Bad page state in process syz.0.17 pfn:34b1e page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888034b1e000 pfn:0x34b1e flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff888034b1e000 3fffffffffffffff 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438777874, free_ts 112265589849 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 page_pool_alloc_netmems net/core/page_pool.c:672 [inline] page_pool_alloc_frag_netmem+0x421/0x9b0 net/core/page_pool.c:1101 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+0xcb7/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 15 tgid 15 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 __tlb_remove_table_free mm/mmu_gather.c:228 [inline] tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1076 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5847 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:2aa44 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88802aa44640 pfn:0x2aa44 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff88802aa44640 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438747120, free_ts 112279950601 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:33d0d page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888033d0ddc0 pfn:0x33d0d flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff888033d0ddc0 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438730265, free_ts 112279990326 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759ed page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759edb40 pfn:0x759ed flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759edb40 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438712889, free_ts 112280018594 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759e6 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759e6780 pfn:0x759e6 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759e6780 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438695913, free_ts 112280036880 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759e8 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759e8280 pfn:0x759e8 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759e8280 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438678454, free_ts 112280085534 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759f4 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759f4140 pfn:0x759f4 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759f4140 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438661636, free_ts 112280146890 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759db page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759db000 pfn:0x759db flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759db000 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438645652, free_ts 112280208165 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759d8 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759d8000 pfn:0x759d8 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759d8000 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438629813, free_ts 112280226200 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759d7 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759d7000 pfn:0x759d7 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759d7000 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438614406, free_ts 112280311815 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759dd page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759dd000 pfn:0x759dd flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759dd000 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438598564, free_ts 112280359096 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 15 tgid 15 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1076 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759ea page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759ea000 pfn:0x759ea flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759ea000 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438583286, free_ts 112280375441 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 15 tgid 15 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1076 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 final repro crashed as (corrupted=false): BUG: Bad page state in process syz.0.17 pfn:34b1e page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888034b1e000 pfn:0x34b1e flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff888034b1e000 3fffffffffffffff 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438777874, free_ts 112265589849 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 page_pool_alloc_netmems net/core/page_pool.c:672 [inline] page_pool_alloc_frag_netmem+0x421/0x9b0 net/core/page_pool.c:1101 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+0xcb7/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 15 tgid 15 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 __tlb_remove_table_free mm/mmu_gather.c:228 [inline] tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1076 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5847 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:2aa44 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88802aa44640 pfn:0x2aa44 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff88802aa44640 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438747120, free_ts 112279950601 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:33d0d page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888033d0ddc0 pfn:0x33d0d flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff888033d0ddc0 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438730265, free_ts 112279990326 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759ed page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759edb40 pfn:0x759ed flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759edb40 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438712889, free_ts 112280018594 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759e6 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759e6780 pfn:0x759e6 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759e6780 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438695913, free_ts 112280036880 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759e8 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759e8280 pfn:0x759e8 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759e8280 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438678454, free_ts 112280085534 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759f4 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759f4140 pfn:0x759f4 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759f4140 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438661636, free_ts 112280146890 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759db page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759db000 pfn:0x759db flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759db000 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438645652, free_ts 112280208165 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759d8 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759d8000 pfn:0x759d8 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759d8000 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438629813, free_ts 112280226200 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759d7 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759d7000 pfn:0x759d7 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759d7000 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438614406, free_ts 112280311815 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5761 tgid 5761 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759dd page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759dd000 pfn:0x759dd flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759dd000 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438598564, free_ts 112280359096 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 15 tgid 15 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1076 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0 BUG: Bad page state in process syz.0.17 pfn:759ea page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880759ea000 pfn:0x759ea flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f9(unknown) raw: 00fff00000000000 0000000000000000 ffff88801af50000 0000000000000000 raw: ffff8880759ea000 0000000000000001 00000000f9000000 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 5847, tgid 5847 (syz.0.17), ts 112438583286, free_ts 112280375441 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5260 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5180 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x151/0x7b0 net/core/page_pool.c:621 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+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5557 [inline] netif_receive_generic_xdp net/core/dev.c:5598 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 15 tgid 15 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1076 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5847 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 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 bpf_xdp_shrink_data net/core/filter.c:4211 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4235 ____bpf_xdp_adjust_tail net/core/filter.c:4257 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4250 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5488 netif_receive_generic_xdp net/core/dev.c:5604 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5666 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1874 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2001 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58e5f5d60e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffdf21d6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555568bf4500 RCX: 00007f58e5f5d60e RDX: 000000000000fe54 RSI: 0000200000001b00 RDI: 00000000000000c8 RBP: 00007f58e6032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f58e6215fac R14: 00007f58e6215fa0 R15: 00007f58e6215fa0