Extracting prog: 1m17.754301958s
Minimizing prog: 13m3.967407179s
Simplifying prog options: 0s
Extracting C: 27.718753538s
Simplifying C: 3m23.110420043s


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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x10, 0xffffffff, {0x0, 0x0, 0x0, r3, {0x0, 0x1}, {0xffff, 0xffff}, {0x0, 0xf}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=@newtfilter={0x84, 0x2c, 0xd27, 0x31bd29, 0x25dfdbfd, {0x0, 0x0, 0x0, r3, {0xc, 0x6}, {}, {0x7, 0xfff3}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x655c, 0x2, 0x1ffffffe, 0x9, 0x800}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x3}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
single: successfully extracted reproducer
found reproducer with 7 syscalls
minimizing guilty program
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x10, 0xffffffff, {0x0, 0x0, 0x0, r3, {0x0, 0x1}, {0xffff, 0xffff}, {0x0, 0xf}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)

program did not crash
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=@newtfilter={0x84, 0x2c, 0xd27, 0x31bd29, 0x25dfdbfd, {0x0, 0x0, 0x0, r3, {0xc, 0x6}, {}, {0x7, 0xfff3}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x655c, 0x2, 0x1ffffffe, 0x9, 0x800}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x3}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
socket$unix(0x1, 0x1, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x10, 0xffffffff, {0x0, 0x0, 0x0, 0x0, {0x0, 0x1}, {0xffff, 0xffff}, {0x0, 0xf}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=@newtfilter={0x84, 0x2c, 0xd27, 0x31bd29, 0x25dfdbfd, {0x0, 0x0, 0x0, 0x0, {0xc, 0x6}, {}, {0x7, 0xfff3}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x655c, 0x2, 0x1ffffffe, 0x9, 0x800}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x3}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r2=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x10, 0xffffffff, {0x0, 0x0, 0x0, r2, {0x0, 0x1}, {0xffff, 0xffff}, {0x0, 0xf}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=@newtfilter={0x84, 0x2c, 0xd27, 0x31bd29, 0x25dfdbfd, {0x0, 0x0, 0x0, r2, {0xc, 0x6}, {}, {0x7, 0xfff3}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x655c, 0x2, 0x1ffffffe, 0x9, 0x800}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x3}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r2=>0x0})
sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x10, 0xffffffff, {0x0, 0x0, 0x0, r2, {0x0, 0x1}, {0xffff, 0xffff}, {0x0, 0xf}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=@newtfilter={0x84, 0x2c, 0xd27, 0x31bd29, 0x25dfdbfd, {0x0, 0x0, 0x0, r2, {0xc, 0x6}, {}, {0x7, 0xfff3}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x655c, 0x2, 0x1ffffffe, 0x9, 0x800}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x3}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
r0 = socket(0x400000000010, 0x3, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x10, 0xffffffff, {0x0, 0x0, 0x0, r2, {0x0, 0x1}, {0xffff, 0xffff}, {0x0, 0xf}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=@newtfilter={0x84, 0x2c, 0xd27, 0x31bd29, 0x25dfdbfd, {0x0, 0x0, 0x0, r2, {0xc, 0x6}, {}, {0x7, 0xfff3}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x655c, 0x2, 0x1ffffffe, 0x9, 0x800}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x3}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
ioctl$TUNSETIFF(0xffffffffffffffff, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r0 = socket(0x400000000010, 0x3, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x10, 0xffffffff, {0x0, 0x0, 0x0, r2, {0x0, 0x1}, {0xffff, 0xffff}, {0x0, 0xf}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=@newtfilter={0x84, 0x2c, 0xd27, 0x31bd29, 0x25dfdbfd, {0x0, 0x0, 0x0, r2, {0xc, 0x6}, {}, {0x7, 0xfff3}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x655c, 0x2, 0x1ffffffe, 0x9, 0x800}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x3}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x10, 0xffffffff, {0x0, 0x0, 0x0, r3, {0x0, 0x1}, {0xffff, 0xffff}, {0x0, 0xf}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=@newtfilter={0x84, 0x2c, 0xd27, 0x31bd29, 0x25dfdbfd, {0x0, 0x0, 0x0, r3, {0xc, 0x6}, {}, {0x7, 0xfff3}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x655c, 0x2, 0x1ffffffe, 0x9, 0x800}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x3}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, 0x0)
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x10, 0xffffffff, {0x0, 0x0, 0x0, r3, {0x0, 0x1}, {0xffff, 0xffff}, {0x0, 0xf}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=@newtfilter={0x84, 0x2c, 0xd27, 0x31bd29, 0x25dfdbfd, {0x0, 0x0, 0x0, r3, {0xc, 0x6}, {}, {0x7, 0xfff3}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x655c, 0x2, 0x1ffffffe, 0x9, 0x800}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x3}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x10, 0xffffffff, {0x0, 0x0, 0x0, 0x0, {0x0, 0x1}, {0xffff, 0xffff}, {0x0, 0xf}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=@newtfilter={0x84, 0x2c, 0xd27, 0x31bd29, 0x25dfdbfd, {0x0, 0x0, 0x0, 0x0, {0xc, 0x6}, {}, {0x7, 0xfff3}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x655c, 0x2, 0x1ffffffe, 0x9, 0x800}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x3}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, 0x0, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=@newtfilter={0x84, 0x2c, 0xd27, 0x31bd29, 0x25dfdbfd, {0x0, 0x0, 0x0, r3, {0xc, 0x6}, {}, {0x7, 0xfff3}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x655c, 0x2, 0x1ffffffe, 0x9, 0x800}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x3}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, 0x0}, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=@newtfilter={0x84, 0x2c, 0xd27, 0x31bd29, 0x25dfdbfd, {0x0, 0x0, 0x0, r3, {0xc, 0x6}, {}, {0x7, 0xfff3}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x655c, 0x2, 0x1ffffffe, 0x9, 0x800}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x3}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000000)={0x0}}, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=@newtfilter={0x84, 0x2c, 0xd27, 0x31bd29, 0x25dfdbfd, {0x0, 0x0, 0x0, r3, {0xc, 0x6}, {}, {0x7, 0xfff3}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x655c, 0x2, 0x1ffffffe, 0x9, 0x800}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x3}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x10, 0xffffffff, {0x0, 0x0, 0x0, r3, {0x0, 0x1}, {0xffff, 0xffff}, {0x0, 0xf}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r1, 0x0, 0x0)

program did not crash
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x10, 0xffffffff, {0x0, 0x0, 0x0, r3, {0x0, 0x1}, {0xffff, 0xffff}, {0x0, 0xf}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f0000000580)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x10, 0xffffffff, {0x0, 0x0, 0x0, r3, {0x0, 0x1}, {0xffff, 0xffff}, {0x0, 0xf}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={0x0}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
simplifying C reproducer
testing compiled C program (duration=33.19367025s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
testing compiled C program (duration=33.19367025s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
testing compiled C program (duration=33.19367025s, {Threaded:false Repeat:false 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:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
testing compiled C program (duration=33.19367025s, {Threaded:false Repeat:false 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:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
testing compiled C program (duration=33.19367025s, {Threaded:false Repeat:false 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:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
testing compiled C program (duration=33.19367025s, {Threaded:false Repeat:false 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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
reproducing took 18m12.550899248s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in is_tcf_tunnel_set include/net/tc_act/tc_tunnel_key.h:33 [inline]
BUG: KASAN: slab-out-of-bounds in tc_setup_flow_action+0x842/0x3280 net/sched/cls_api.c:3639
Read of size 8 at addr ffff8881083e63c0 by task syz-executor269/275

CPU: 0 PID: 275 Comm: syz-executor269 Not tainted 5.10.238-syzkaller-00282-gd76d4cd0623a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0xe2/0x130 mm/kasan/report.c:452
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
 is_tcf_tunnel_set include/net/tc_act/tc_tunnel_key.h:33 [inline]
 tc_setup_flow_action+0x842/0x3280 net/sched/cls_api.c:3639
 mall_replace_hw_filter+0x293/0x810 net/sched/cls_matchall.c:100
 mall_change+0x528/0x750 net/sched/cls_matchall.c:236
 tc_new_tfilter+0x13f6/0x1a10 net/sched/cls_api.c:2134
 rtnetlink_rcv_msg+0x800/0xb90 net/core/rtnetlink.c:5601
 netlink_rcv_skb+0x1e0/0x430 net/netlink/af_netlink.c:2485
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5628
 netlink_unicast_kernel net/netlink/af_netlink.c:1307 [inline]
 netlink_unicast+0x87c/0xa40 net/netlink/af_netlink.c:1333
 netlink_sendmsg+0x88d/0xb30 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:652 [inline]
 __sock_sendmsg net/socket.c:664 [inline]
 ____sys_sendmsg+0x5a2/0x8c0 net/socket.c:2376
 ___sys_sendmsg+0x1f0/0x260 net/socket.c:2430
 __sys_sendmsg net/socket.c:2459 [inline]
 __do_sys_sendmsg net/socket.c:2468 [inline]
 __se_sys_sendmsg net/socket.c:2466 [inline]
 __x64_sys_sendmsg+0x1e2/0x2a0 net/socket.c:2466
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f414c4a67a9
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc9f5b12c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ffc9f5b1498 RCX: 00007f414c4a67a9
RDX: 0000000000000000 RSI: 0000200000000580 RDI: 0000000000000004
RBP: 00007f414c519610 R08: 0000000000000004 R09: 00007ffc9f5b1498
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc9f5b1488 R14: 0000000000000001 R15: 0000000000000001

Allocated by task 275:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:430 [inline]
 ____kasan_kmalloc mm/kasan/common.c:509 [inline]
 __kasan_kmalloc+0xda/0x110 mm/kasan/common.c:518
 kasan_kmalloc include/linux/kasan.h:254 [inline]
 __kmalloc+0x1a7/0x330 mm/slub.c:4033
 kmalloc include/linux/slab.h:557 [inline]
 kzalloc include/linux/slab.h:664 [inline]
 tcf_idr_create+0x5f/0x790 net/sched/act_api.c:430
 tcf_idr_create_from_flags+0x61/0x70 net/sched/act_api.c:488
 tcf_gact_init+0x2b4/0x520 net/sched/act_gact.c:102
 tcf_action_init_1+0x3e1/0x670 net/sched/act_api.c:1052
 tcf_action_init+0x1e6/0x700 net/sched/act_api.c:1109
 tcf_exts_validate+0x215/0x510 net/sched/cls_api.c:3086
 mall_set_parms+0x4b/0x410 net/sched/cls_matchall.c:171
 mall_change+0x45c/0x750 net/sched/cls_matchall.c:230
 tc_new_tfilter+0x13f6/0x1a10 net/sched/cls_api.c:2134
 rtnetlink_rcv_msg+0x800/0xb90 net/core/rtnetlink.c:5601
 netlink_rcv_skb+0x1e0/0x430 net/netlink/af_netlink.c:2485
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5628
 netlink_unicast_kernel net/netlink/af_netlink.c:1307 [inline]
 netlink_unicast+0x87c/0xa40 net/netlink/af_netlink.c:1333
 netlink_sendmsg+0x88d/0xb30 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:652 [inline]
 __sock_sendmsg net/socket.c:664 [inline]
 ____sys_sendmsg+0x5a2/0x8c0 net/socket.c:2376
 ___sys_sendmsg+0x1f0/0x260 net/socket.c:2430
 __sys_sendmsg net/socket.c:2459 [inline]
 __do_sys_sendmsg net/socket.c:2468 [inline]
 __se_sys_sendmsg net/socket.c:2466 [inline]
 __x64_sys_sendmsg+0x1e2/0x2a0 net/socket.c:2466
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

The buggy address belongs to the object at ffff8881083e6300
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 0 bytes to the right of
 192-byte region [ffff8881083e6300, ffff8881083e63c0)
The buggy address belongs to the page:
page:ffffea000420f980 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1083e6
flags: 0x4000000000000200(slab)
raw: 4000000000000200 ffffea0004216140 0000000600000006 ffff888100043380
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1, ts 1115790196, free_ts 0
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook mm/page_alloc.c:2456 [inline]
 prep_new_page+0x179/0x180 mm/page_alloc.c:2462
 get_page_from_freelist+0x2235/0x23d0 mm/page_alloc.c:4254
 __alloc_pages_nodemask+0x268/0x5f0 mm/page_alloc.c:5357
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1808 [inline]
 new_slab+0x84/0x3f0 mm/slub.c:1869
 new_slab_objects mm/slub.c:2627 [inline]
 ___slab_alloc+0x2a6/0x450 mm/slub.c:2791
 __slab_alloc+0x63/0xa0 mm/slub.c:2831
 slab_alloc_node mm/slub.c:2913 [inline]
 slab_alloc mm/slub.c:2955 [inline]
 __kmalloc_track_caller+0x1ef/0x320 mm/slub.c:4536
 __do_krealloc mm/slab_common.c:1103 [inline]
 krealloc+0x6a/0x110 mm/slab_common.c:1136
 add_sysfs_param+0xce/0x830 kernel/params.c:651
 kernel_add_sysfs_param+0xb3/0x128 kernel/params.c:812
 param_sysfs_builtin+0x164/0x1d9 kernel/params.c:851
 param_sysfs_init+0x6a/0x6f kernel/params.c:974
 do_one_initcall+0x187/0x510 init/main.c:1197
 do_initcall_level+0x16f/0x2cf init/main.c:1270
 do_initcalls+0x50/0x92 init/main.c:1286
 do_basic_setup+0x88/0x8f init/main.c:1306
page_owner free stack trace missing

Memory state around the buggy address:
 ffff8881083e6280: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8881083e6300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8881083e6380: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
                                           ^
 ffff8881083e6400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8881083e6480: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in is_tcf_tunnel_set include/net/tc_act/tc_tunnel_key.h:33 [inline]
BUG: KASAN: slab-out-of-bounds in tc_setup_flow_action+0x842/0x3280 net/sched/cls_api.c:3639
Read of size 8 at addr ffff8881083e63c0 by task syz-executor269/275

CPU: 0 PID: 275 Comm: syz-executor269 Not tainted 5.10.238-syzkaller-00282-gd76d4cd0623a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0xe2/0x130 mm/kasan/report.c:452
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
 is_tcf_tunnel_set include/net/tc_act/tc_tunnel_key.h:33 [inline]
 tc_setup_flow_action+0x842/0x3280 net/sched/cls_api.c:3639
 mall_replace_hw_filter+0x293/0x810 net/sched/cls_matchall.c:100
 mall_change+0x528/0x750 net/sched/cls_matchall.c:236
 tc_new_tfilter+0x13f6/0x1a10 net/sched/cls_api.c:2134
 rtnetlink_rcv_msg+0x800/0xb90 net/core/rtnetlink.c:5601
 netlink_rcv_skb+0x1e0/0x430 net/netlink/af_netlink.c:2485
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5628
 netlink_unicast_kernel net/netlink/af_netlink.c:1307 [inline]
 netlink_unicast+0x87c/0xa40 net/netlink/af_netlink.c:1333
 netlink_sendmsg+0x88d/0xb30 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:652 [inline]
 __sock_sendmsg net/socket.c:664 [inline]
 ____sys_sendmsg+0x5a2/0x8c0 net/socket.c:2376
 ___sys_sendmsg+0x1f0/0x260 net/socket.c:2430
 __sys_sendmsg net/socket.c:2459 [inline]
 __do_sys_sendmsg net/socket.c:2468 [inline]
 __se_sys_sendmsg net/socket.c:2466 [inline]
 __x64_sys_sendmsg+0x1e2/0x2a0 net/socket.c:2466
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f414c4a67a9
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc9f5b12c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ffc9f5b1498 RCX: 00007f414c4a67a9
RDX: 0000000000000000 RSI: 0000200000000580 RDI: 0000000000000004
RBP: 00007f414c519610 R08: 0000000000000004 R09: 00007ffc9f5b1498
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc9f5b1488 R14: 0000000000000001 R15: 0000000000000001

Allocated by task 275:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:430 [inline]
 ____kasan_kmalloc mm/kasan/common.c:509 [inline]
 __kasan_kmalloc+0xda/0x110 mm/kasan/common.c:518
 kasan_kmalloc include/linux/kasan.h:254 [inline]
 __kmalloc+0x1a7/0x330 mm/slub.c:4033
 kmalloc include/linux/slab.h:557 [inline]
 kzalloc include/linux/slab.h:664 [inline]
 tcf_idr_create+0x5f/0x790 net/sched/act_api.c:430
 tcf_idr_create_from_flags+0x61/0x70 net/sched/act_api.c:488
 tcf_gact_init+0x2b4/0x520 net/sched/act_gact.c:102
 tcf_action_init_1+0x3e1/0x670 net/sched/act_api.c:1052
 tcf_action_init+0x1e6/0x700 net/sched/act_api.c:1109
 tcf_exts_validate+0x215/0x510 net/sched/cls_api.c:3086
 mall_set_parms+0x4b/0x410 net/sched/cls_matchall.c:171
 mall_change+0x45c/0x750 net/sched/cls_matchall.c:230
 tc_new_tfilter+0x13f6/0x1a10 net/sched/cls_api.c:2134
 rtnetlink_rcv_msg+0x800/0xb90 net/core/rtnetlink.c:5601
 netlink_rcv_skb+0x1e0/0x430 net/netlink/af_netlink.c:2485
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5628
 netlink_unicast_kernel net/netlink/af_netlink.c:1307 [inline]
 netlink_unicast+0x87c/0xa40 net/netlink/af_netlink.c:1333
 netlink_sendmsg+0x88d/0xb30 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:652 [inline]
 __sock_sendmsg net/socket.c:664 [inline]
 ____sys_sendmsg+0x5a2/0x8c0 net/socket.c:2376
 ___sys_sendmsg+0x1f0/0x260 net/socket.c:2430
 __sys_sendmsg net/socket.c:2459 [inline]
 __do_sys_sendmsg net/socket.c:2468 [inline]
 __se_sys_sendmsg net/socket.c:2466 [inline]
 __x64_sys_sendmsg+0x1e2/0x2a0 net/socket.c:2466
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

The buggy address belongs to the object at ffff8881083e6300
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 0 bytes to the right of
 192-byte region [ffff8881083e6300, ffff8881083e63c0)
The buggy address belongs to the page:
page:ffffea000420f980 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1083e6
flags: 0x4000000000000200(slab)
raw: 4000000000000200 ffffea0004216140 0000000600000006 ffff888100043380
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1, ts 1115790196, free_ts 0
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook mm/page_alloc.c:2456 [inline]
 prep_new_page+0x179/0x180 mm/page_alloc.c:2462
 get_page_from_freelist+0x2235/0x23d0 mm/page_alloc.c:4254
 __alloc_pages_nodemask+0x268/0x5f0 mm/page_alloc.c:5357
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1808 [inline]
 new_slab+0x84/0x3f0 mm/slub.c:1869
 new_slab_objects mm/slub.c:2627 [inline]
 ___slab_alloc+0x2a6/0x450 mm/slub.c:2791
 __slab_alloc+0x63/0xa0 mm/slub.c:2831
 slab_alloc_node mm/slub.c:2913 [inline]
 slab_alloc mm/slub.c:2955 [inline]
 __kmalloc_track_caller+0x1ef/0x320 mm/slub.c:4536
 __do_krealloc mm/slab_common.c:1103 [inline]
 krealloc+0x6a/0x110 mm/slab_common.c:1136
 add_sysfs_param+0xce/0x830 kernel/params.c:651
 kernel_add_sysfs_param+0xb3/0x128 kernel/params.c:812
 param_sysfs_builtin+0x164/0x1d9 kernel/params.c:851
 param_sysfs_init+0x6a/0x6f kernel/params.c:974
 do_one_initcall+0x187/0x510 init/main.c:1197
 do_initcall_level+0x16f/0x2cf init/main.c:1270
 do_initcalls+0x50/0x92 init/main.c:1286
 do_basic_setup+0x88/0x8f init/main.c:1306
page_owner free stack trace missing

Memory state around the buggy address:
 ffff8881083e6280: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8881083e6300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8881083e6380: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
                                           ^
 ffff8881083e6400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8881083e6480: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================