Extracting prog: 1m12.148824626s
Minimizing prog: 11m2.007113142s
Simplifying prog options: 0s
Extracting C: 21.789292017s
Simplifying C: 5m4.522143616s


extracting reproducer from 71 programs
first checking the prog from the crash report
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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'lo\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000001340)=@newqdisc={0x48, 0x24, 0xd0f, 0x70bd2d, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xa}, {0xffff, 0xffff}, {0x0, 0xffff}}, [@qdisc_kind_options=@q_htb={{0x8}, {0x1c, 0x2, [@TCA_HTB_INIT={0x18, 0x2, {0x3, 0x1}}]}}]}, 0x48}}, 0x44080)
r3 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f00000001c0)=@newqdisc={0x78, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xf}, {0xa, 0xa}, {0x6}}, [@qdisc_kind_options=@q_sfq={{0x8}, {0x48, 0x2, {{0x7, 0x8, 0x4, 0x0, 0x7}, 0xf0, 0x1, 0x31a, 0x3, 0x88a, 0xd, 0x8e, 0x1f, 0x3, 0xff, {0x4415, 0x2, 0x800, 0x5, 0x0, 0x5}}}}]}, 0x78}}, 0x4000)

program crashed: general protection fault in htb_qlen_notify
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'lo\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000001340)=@newqdisc={0x48, 0x24, 0xd0f, 0x70bd2d, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xa}, {0xffff, 0xffff}, {0x0, 0xffff}}, [@qdisc_kind_options=@q_htb={{0x8}, {0x1c, 0x2, [@TCA_HTB_INIT={0x18, 0x2, {0x3, 0x1}}]}}]}, 0x48}}, 0x44080)
socket(0x10, 0x3, 0x0)

program did not crash
testing program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'lo\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000001340)=@newqdisc={0x48, 0x24, 0xd0f, 0x70bd2d, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xa}, {0xffff, 0xffff}, {0x0, 0xffff}}, [@qdisc_kind_options=@q_htb={{0x8}, {0x1c, 0x2, [@TCA_HTB_INIT={0x18, 0x2, {0x3, 0x1}}]}}]}, 0x48}}, 0x44080)
sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f00000001c0)=@newqdisc={0x78, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xf}, {0xa, 0xa}, {0x6}}, [@qdisc_kind_options=@q_sfq={{0x8}, {0x48, 0x2, {{0x7, 0x8, 0x4, 0x0, 0x7}, 0xf0, 0x1, 0x31a, 0x3, 0x88a, 0xd, 0x8e, 0x1f, 0x3, 0xff, {0x4415, 0x2, 0x800, 0x5, 0x0, 0x5}}}}]}, 0x78}}, 0x4000)

program did not crash
testing program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'lo\x00', <r1=>0x0})
r2 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f00000001c0)=@newqdisc={0x78, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r1, {0x0, 0xf}, {0xa, 0xa}, {0x6}}, [@qdisc_kind_options=@q_sfq={{0x8}, {0x48, 0x2, {{0x7, 0x8, 0x4, 0x0, 0x7}, 0xf0, 0x1, 0x31a, 0x3, 0x88a, 0xd, 0x8e, 0x1f, 0x3, 0xff, {0x4415, 0x2, 0x800, 0x5, 0x0, 0x5}}}}]}, 0x78}}, 0x4000)

program did not crash
testing program (duration=34.256986153s, {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}}): socket-socketpair$unix-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240))
sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000001340)=@newqdisc={0x48, 0x24, 0xd0f, 0x70bd2d, 0x0, {0x60, 0x0, 0x0, 0x0, {0x0, 0xa}, {0xffff, 0xffff}, {0x0, 0xffff}}, [@qdisc_kind_options=@q_htb={{0x8}, {0x1c, 0x2, [@TCA_HTB_INIT={0x18, 0x2, {0x3, 0x1}}]}}]}, 0x48}}, 0x44080)
r1 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f00000001c0)=@newqdisc={0x78, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, 0x0, {0x0, 0xf}, {0xa, 0xa}, {0x6}}, [@qdisc_kind_options=@q_sfq={{0x8}, {0x48, 0x2, {{0x7, 0x8, 0x4, 0x0, 0x7}, 0xf0, 0x1, 0x31a, 0x3, 0x88a, 0xd, 0x8e, 0x1f, 0x3, 0xff, {0x4415, 0x2, 0x800, 0x5, 0x0, 0x5}}}}]}, 0x78}}, 0x4000)

program did not crash
testing program (duration=34.256986153s, {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}}): socket-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'lo\x00', <r1=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000001340)=@newqdisc={0x48, 0x24, 0xd0f, 0x70bd2d, 0x0, {0x60, 0x0, 0x0, r1, {0x0, 0xa}, {0xffff, 0xffff}, {0x0, 0xffff}}, [@qdisc_kind_options=@q_htb={{0x8}, {0x1c, 0x2, [@TCA_HTB_INIT={0x18, 0x2, {0x3, 0x1}}]}}]}, 0x48}}, 0x44080)
r2 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f00000001c0)=@newqdisc={0x78, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r1, {0x0, 0xf}, {0xa, 0xa}, {0x6}}, [@qdisc_kind_options=@q_sfq={{0x8}, {0x48, 0x2, {{0x7, 0x8, 0x4, 0x0, 0x7}, 0xf0, 0x1, 0x31a, 0x3, 0x88a, 0xd, 0x8e, 0x1f, 0x3, 0xff, {0x4415, 0x2, 0x800, 0x5, 0x0, 0x5}}}}]}, 0x78}}, 0x4000)

program did not crash
testing program (duration=34.256986153s, {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}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'lo\x00', <r1=>0x0})
sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000001340)=@newqdisc={0x48, 0x24, 0xd0f, 0x70bd2d, 0x0, {0x60, 0x0, 0x0, r1, {0x0, 0xa}, {0xffff, 0xffff}, {0x0, 0xffff}}, [@qdisc_kind_options=@q_htb={{0x8}, {0x1c, 0x2, [@TCA_HTB_INIT={0x18, 0x2, {0x3, 0x1}}]}}]}, 0x48}}, 0x44080)
r2 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f00000001c0)=@newqdisc={0x78, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r1, {0x0, 0xf}, {0xa, 0xa}, {0x6}}, [@qdisc_kind_options=@q_sfq={{0x8}, {0x48, 0x2, {{0x7, 0x8, 0x4, 0x0, 0x7}, 0xf0, 0x1, 0x31a, 0x3, 0x88a, 0xd, 0x8e, 0x1f, 0x3, 0xff, {0x4415, 0x2, 0x800, 0x5, 0x0, 0x5}}}}]}, 0x78}}, 0x4000)

program did not crash
testing program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'lo\x00', <r1=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000001340)=@newqdisc={0x48, 0x24, 0xd0f, 0x70bd2d, 0x0, {0x60, 0x0, 0x0, r1, {0x0, 0xa}, {0xffff, 0xffff}, {0x0, 0xffff}}, [@qdisc_kind_options=@q_htb={{0x8}, {0x1c, 0x2, [@TCA_HTB_INIT={0x18, 0x2, {0x3, 0x1}}]}}]}, 0x48}}, 0x44080)
r2 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f00000001c0)=@newqdisc={0x78, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r1, {0x0, 0xf}, {0xa, 0xa}, {0x6}}, [@qdisc_kind_options=@q_sfq={{0x8}, {0x48, 0x2, {{0x7, 0x8, 0x4, 0x0, 0x7}, 0xf0, 0x1, 0x31a, 0x3, 0x88a, 0xd, 0x8e, 0x1f, 0x3, 0xff, {0x4415, 0x2, 0x800, 0x5, 0x0, 0x5}}}}]}, 0x78}}, 0x4000)

program did not crash
testing program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000001340)=@newqdisc={0x48, 0x24, 0xd0f, 0x70bd2d, 0x0, {0x60, 0x0, 0x0, 0x0, {0x0, 0xa}, {0xffff, 0xffff}, {0x0, 0xffff}}, [@qdisc_kind_options=@q_htb={{0x8}, {0x1c, 0x2, [@TCA_HTB_INIT={0x18, 0x2, {0x3, 0x1}}]}}]}, 0x48}}, 0x44080)
r2 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f00000001c0)=@newqdisc={0x78, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, 0x0, {0x0, 0xf}, {0xa, 0xa}, {0x6}}, [@qdisc_kind_options=@q_sfq={{0x8}, {0x48, 0x2, {{0x7, 0x8, 0x4, 0x0, 0x7}, 0xf0, 0x1, 0x31a, 0x3, 0x88a, 0xd, 0x8e, 0x1f, 0x3, 0xff, {0x4415, 0x2, 0x800, 0x5, 0x0, 0x5}}}}]}, 0x78}}, 0x4000)

program did not crash
testing program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'lo\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, 0x0, 0x44080)
r3 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f00000001c0)=@newqdisc={0x78, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xf}, {0xa, 0xa}, {0x6}}, [@qdisc_kind_options=@q_sfq={{0x8}, {0x48, 0x2, {{0x7, 0x8, 0x4, 0x0, 0x7}, 0xf0, 0x1, 0x31a, 0x3, 0x88a, 0xd, 0x8e, 0x1f, 0x3, 0xff, {0x4415, 0x2, 0x800, 0x5, 0x0, 0x5}}}}]}, 0x78}}, 0x4000)

program did not crash
testing program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'lo\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, 0x0}, 0x44080)
r3 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f00000001c0)=@newqdisc={0x78, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xf}, {0xa, 0xa}, {0x6}}, [@qdisc_kind_options=@q_sfq={{0x8}, {0x48, 0x2, {{0x7, 0x8, 0x4, 0x0, 0x7}, 0xf0, 0x1, 0x31a, 0x3, 0x88a, 0xd, 0x8e, 0x1f, 0x3, 0xff, {0x4415, 0x2, 0x800, 0x5, 0x0, 0x5}}}}]}, 0x78}}, 0x4000)

program did not crash
testing program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'lo\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={0x0}}, 0x44080)
r3 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f00000001c0)=@newqdisc={0x78, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xf}, {0xa, 0xa}, {0x6}}, [@qdisc_kind_options=@q_sfq={{0x8}, {0x48, 0x2, {{0x7, 0x8, 0x4, 0x0, 0x7}, 0xf0, 0x1, 0x31a, 0x3, 0x88a, 0xd, 0x8e, 0x1f, 0x3, 0xff, {0x4415, 0x2, 0x800, 0x5, 0x0, 0x5}}}}]}, 0x78}}, 0x4000)

program did not crash
testing program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'lo\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000001340)=@newqdisc={0x48, 0x24, 0xd0f, 0x70bd2d, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xa}, {0xffff, 0xffff}, {0x0, 0xffff}}, [@qdisc_kind_options=@q_htb={{0x8}, {0x1c, 0x2, [@TCA_HTB_INIT={0x18, 0x2, {0x3, 0x1}}]}}]}, 0x48}}, 0x44080)
r3 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r3, 0x0, 0x4000)

program did not crash
testing program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'lo\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000001340)=@newqdisc={0x48, 0x24, 0xd0f, 0x70bd2d, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xa}, {0xffff, 0xffff}, {0x0, 0xffff}}, [@qdisc_kind_options=@q_htb={{0x8}, {0x1c, 0x2, [@TCA_HTB_INIT={0x18, 0x2, {0x3, 0x1}}]}}]}, 0x48}}, 0x44080)
r3 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r3, &(0x7f0000000040)={0x0, 0x0, 0x0}, 0x4000)

program did not crash
testing program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'lo\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000001340)=@newqdisc={0x48, 0x24, 0xd0f, 0x70bd2d, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xa}, {0xffff, 0xffff}, {0x0, 0xffff}}, [@qdisc_kind_options=@q_htb={{0x8}, {0x1c, 0x2, [@TCA_HTB_INIT={0x18, 0x2, {0x3, 0x1}}]}}]}, 0x48}}, 0x44080)
r3 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={0x0}}, 0x4000)

program did not crash
extracting C reproducer
testing compiled C program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
program crashed: general protection fault in htb_qlen_notify
simplifying C reproducer
testing compiled C program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
program crashed: general protection fault in htb_qlen_notify
testing compiled C program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
program crashed: general protection fault in htb_qlen_notify
testing compiled C program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
program crashed: general protection fault in htb_qlen_notify
testing compiled C program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
program crashed: general protection fault in htb_qlen_notify
testing compiled C program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
program crashed: general protection fault in htb_qlen_notify
testing compiled C program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
program crashed: general protection fault in htb_qlen_notify
testing program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'lo\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000001340)=@newqdisc={0x48, 0x24, 0xd0f, 0x70bd2d, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xa}, {0xffff, 0xffff}, {0x0, 0xffff}}, [@qdisc_kind_options=@q_htb={{0x8}, {0x1c, 0x2, [@TCA_HTB_INIT={0x18, 0x2, {0x3, 0x1}}]}}]}, 0x48}}, 0x44080)
r3 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f00000001c0)=@newqdisc={0x78, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xf}, {0xa, 0xa}, {0x6}}, [@qdisc_kind_options=@q_sfq={{0x8}, {0x48, 0x2, {{0x7, 0x8, 0x4, 0x0, 0x7}, 0xf0, 0x1, 0x31a, 0x3, 0x88a, 0xd, 0x8e, 0x1f, 0x3, 0xff, {0x4415, 0x2, 0x800, 0x5, 0x0, 0x5}}}}]}, 0x78}}, 0x4000)

program crashed: general protection fault in htb_qlen_notify
validation run: crashed=true
testing program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'lo\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000001340)=@newqdisc={0x48, 0x24, 0xd0f, 0x70bd2d, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xa}, {0xffff, 0xffff}, {0x0, 0xffff}}, [@qdisc_kind_options=@q_htb={{0x8}, {0x1c, 0x2, [@TCA_HTB_INIT={0x18, 0x2, {0x3, 0x1}}]}}]}, 0x48}}, 0x44080)
r3 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f00000001c0)=@newqdisc={0x78, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xf}, {0xa, 0xa}, {0x6}}, [@qdisc_kind_options=@q_sfq={{0x8}, {0x48, 0x2, {{0x7, 0x8, 0x4, 0x0, 0x7}, 0xf0, 0x1, 0x31a, 0x3, 0x88a, 0xd, 0x8e, 0x1f, 0x3, 0xff, {0x4415, 0x2, 0x800, 0x5, 0x0, 0x5}}}}]}, 0x78}}, 0x4000)

program crashed: general protection fault in htb_qlen_notify
validation run: crashed=true
testing program (duration=34.256986153s, {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}}): socket-socketpair$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'lo\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000001340)=@newqdisc={0x48, 0x24, 0xd0f, 0x70bd2d, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xa}, {0xffff, 0xffff}, {0x0, 0xffff}}, [@qdisc_kind_options=@q_htb={{0x8}, {0x1c, 0x2, [@TCA_HTB_INIT={0x18, 0x2, {0x3, 0x1}}]}}]}, 0x48}}, 0x44080)
r3 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f00000001c0)=@newqdisc={0x78, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r2, {0x0, 0xf}, {0xa, 0xa}, {0x6}}, [@qdisc_kind_options=@q_sfq={{0x8}, {0x48, 0x2, {{0x7, 0x8, 0x4, 0x0, 0x7}, 0xf0, 0x1, 0x31a, 0x3, 0x88a, 0xd, 0x8e, 0x1f, 0x3, 0xff, {0x4415, 0x2, 0x800, 0x5, 0x0, 0x5}}}}]}, 0x78}}, 0x4000)

program crashed: general protection fault in htb_qlen_notify
validation run: crashed=true
reproducing took 20m28.095631847s
repro crashed as (corrupted=false):
netlink: 4 bytes leftover after parsing attributes in process `syz.2.16'.
general protection fault, probably for non-canonical address 0xdffffc0000000037: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000001b8-0x00000000000001bf]
CPU: 0 PID: 370 Comm: syz.2.16 Not tainted 6.1.145-syzkaller-00015-g2ff414a09808 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:htb_deactivate net/sched/sch_htb.c:610 [inline]
RIP: 0010:htb_qlen_notify+0x30/0xc0 net/sched/sch_htb.c:1495
Code: 41 56 41 55 41 54 53 49 89 f6 49 89 ff 49 bc 00 00 00 00 00 fc ff df e8 4e 0f 6f fd 4d 8d ae b8 01 00 00 4c 89 eb 48 c1 eb 03 <42> 0f b6 04 23 84 c0 75 56 45 8b 65 00 31 ff 44 89 e6 e8 49 13 6f
RSP: 0018:ffffc90000ab6ea8 EFLAGS: 00010202
RAX: ffffffff8400ef52 RBX: 0000000000000037 RCX: ffff88810fb90000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88810fd2e000
RBP: ffffc90000ab6ed0 R08: ffff88810fb90000 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff8400ef30 R12: dffffc0000000000
R13: 00000000000001b8 R14: 0000000000000000 R15: ffff88810fd2e000
FS:  000055557c2ef500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001340 CR3: 0000000109738000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 qdisc_tree_reduce_backlog+0x20a/0x360 net/sched/sch_api.c:808
 sfq_change net/sched/sch_sfq.c:740 [inline]
 sfq_init+0x1b59/0x2870 net/sched/sch_sfq.c:804
 qdisc_create+0x7f3/0x1040 net/sched/sch_api.c:1311
 tc_modify_qdisc+0x8ea/0x1900 net/sched/sch_api.c:-1
 rtnetlink_rcv_msg+0x9f4/0xcf0 net/core/rtnetlink.c:6153
 netlink_rcv_skb+0x1f2/0x440 net/netlink/af_netlink.c:2503
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:6171
 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]
 netlink_unicast+0x8b1/0xa30 net/netlink/af_netlink.c:1338
 netlink_sendmsg+0x8aa/0xbc0 net/netlink/af_netlink.c:1860
 sock_sendmsg_nosec net/socket.c:716 [inline]
 __sock_sendmsg net/socket.c:728 [inline]
 ____sys_sendmsg+0x5a9/0x990 net/socket.c:2509
 ___sys_sendmsg+0x21c/0x290 net/socket.c:2563
 __sys_sendmsg net/socket.c:2592 [inline]
 __do_sys_sendmsg net/socket.c:2601 [inline]
 __se_sys_sendmsg net/socket.c:2599 [inline]
 __x64_sys_sendmsg+0x1f0/0x2c0 net/socket.c:2599
 x64_sys_call+0x171/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:47
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f591c98e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff96eb9108 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f591cbb5fa0 RCX: 00007f591c98e9a9
RDX: 0000000000004000 RSI: 0000200000000040 RDI: 0000000000000006
RBP: 00007f591ca10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f591cbb5fa0 R14: 00007f591cbb5fa0 R15: 0000000000000003
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:htb_deactivate net/sched/sch_htb.c:610 [inline]
RIP: 0010:htb_qlen_notify+0x30/0xc0 net/sched/sch_htb.c:1495
Code: 41 56 41 55 41 54 53 49 89 f6 49 89 ff 49 bc 00 00 00 00 00 fc ff df e8 4e 0f 6f fd 4d 8d ae b8 01 00 00 4c 89 eb 48 c1 eb 03 <42> 0f b6 04 23 84 c0 75 56 45 8b 65 00 31 ff 44 89 e6 e8 49 13 6f
RSP: 0018:ffffc90000ab6ea8 EFLAGS: 00010202
RAX: ffffffff8400ef52 RBX: 0000000000000037 RCX: ffff88810fb90000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88810fd2e000
RBP: ffffc90000ab6ed0 R08: ffff88810fb90000 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff8400ef30 R12: dffffc0000000000
R13: 00000000000001b8 R14: 0000000000000000 R15: ffff88810fd2e000
FS:  000055557c2ef500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001340 CR3: 0000000109738000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	41 56                	push   %r14
   2:	41 55                	push   %r13
   4:	41 54                	push   %r12
   6:	53                   	push   %rbx
   7:	49 89 f6             	mov    %rsi,%r14
   a:	49 89 ff             	mov    %rdi,%r15
   d:	49 bc 00 00 00 00 00 	movabs $0xdffffc0000000000,%r12
  14:	fc ff df
  17:	e8 4e 0f 6f fd       	call   0xfd6f0f6a
  1c:	4d 8d ae b8 01 00 00 	lea    0x1b8(%r14),%r13
  23:	4c 89 eb             	mov    %r13,%rbx
  26:	48 c1 eb 03          	shr    $0x3,%rbx
* 2a:	42 0f b6 04 23       	movzbl (%rbx,%r12,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	75 56                	jne    0x89
  33:	45 8b 65 00          	mov    0x0(%r13),%r12d
  37:	31 ff                	xor    %edi,%edi
  39:	44 89 e6             	mov    %r12d,%esi
  3c:	e8                   	.byte 0xe8
  3d:	49                   	rex.WB
  3e:	13                   	.byte 0x13
  3f:	6f                   	outsl  %ds:(%rsi),(%dx)

final repro crashed as (corrupted=false):
netlink: 4 bytes leftover after parsing attributes in process `syz.2.16'.
general protection fault, probably for non-canonical address 0xdffffc0000000037: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000001b8-0x00000000000001bf]
CPU: 0 PID: 370 Comm: syz.2.16 Not tainted 6.1.145-syzkaller-00015-g2ff414a09808 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:htb_deactivate net/sched/sch_htb.c:610 [inline]
RIP: 0010:htb_qlen_notify+0x30/0xc0 net/sched/sch_htb.c:1495
Code: 41 56 41 55 41 54 53 49 89 f6 49 89 ff 49 bc 00 00 00 00 00 fc ff df e8 4e 0f 6f fd 4d 8d ae b8 01 00 00 4c 89 eb 48 c1 eb 03 <42> 0f b6 04 23 84 c0 75 56 45 8b 65 00 31 ff 44 89 e6 e8 49 13 6f
RSP: 0018:ffffc90000ab6ea8 EFLAGS: 00010202
RAX: ffffffff8400ef52 RBX: 0000000000000037 RCX: ffff88810fb90000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88810fd2e000
RBP: ffffc90000ab6ed0 R08: ffff88810fb90000 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff8400ef30 R12: dffffc0000000000
R13: 00000000000001b8 R14: 0000000000000000 R15: ffff88810fd2e000
FS:  000055557c2ef500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001340 CR3: 0000000109738000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 qdisc_tree_reduce_backlog+0x20a/0x360 net/sched/sch_api.c:808
 sfq_change net/sched/sch_sfq.c:740 [inline]
 sfq_init+0x1b59/0x2870 net/sched/sch_sfq.c:804
 qdisc_create+0x7f3/0x1040 net/sched/sch_api.c:1311
 tc_modify_qdisc+0x8ea/0x1900 net/sched/sch_api.c:-1
 rtnetlink_rcv_msg+0x9f4/0xcf0 net/core/rtnetlink.c:6153
 netlink_rcv_skb+0x1f2/0x440 net/netlink/af_netlink.c:2503
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:6171
 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]
 netlink_unicast+0x8b1/0xa30 net/netlink/af_netlink.c:1338
 netlink_sendmsg+0x8aa/0xbc0 net/netlink/af_netlink.c:1860
 sock_sendmsg_nosec net/socket.c:716 [inline]
 __sock_sendmsg net/socket.c:728 [inline]
 ____sys_sendmsg+0x5a9/0x990 net/socket.c:2509
 ___sys_sendmsg+0x21c/0x290 net/socket.c:2563
 __sys_sendmsg net/socket.c:2592 [inline]
 __do_sys_sendmsg net/socket.c:2601 [inline]
 __se_sys_sendmsg net/socket.c:2599 [inline]
 __x64_sys_sendmsg+0x1f0/0x2c0 net/socket.c:2599
 x64_sys_call+0x171/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:47
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f591c98e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff96eb9108 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f591cbb5fa0 RCX: 00007f591c98e9a9
RDX: 0000000000004000 RSI: 0000200000000040 RDI: 0000000000000006
RBP: 00007f591ca10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f591cbb5fa0 R14: 00007f591cbb5fa0 R15: 0000000000000003
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:htb_deactivate net/sched/sch_htb.c:610 [inline]
RIP: 0010:htb_qlen_notify+0x30/0xc0 net/sched/sch_htb.c:1495
Code: 41 56 41 55 41 54 53 49 89 f6 49 89 ff 49 bc 00 00 00 00 00 fc ff df e8 4e 0f 6f fd 4d 8d ae b8 01 00 00 4c 89 eb 48 c1 eb 03 <42> 0f b6 04 23 84 c0 75 56 45 8b 65 00 31 ff 44 89 e6 e8 49 13 6f
RSP: 0018:ffffc90000ab6ea8 EFLAGS: 00010202
RAX: ffffffff8400ef52 RBX: 0000000000000037 RCX: ffff88810fb90000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88810fd2e000
RBP: ffffc90000ab6ed0 R08: ffff88810fb90000 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff8400ef30 R12: dffffc0000000000
R13: 00000000000001b8 R14: 0000000000000000 R15: ffff88810fd2e000
FS:  000055557c2ef500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001340 CR3: 0000000109738000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	41 56                	push   %r14
   2:	41 55                	push   %r13
   4:	41 54                	push   %r12
   6:	53                   	push   %rbx
   7:	49 89 f6             	mov    %rsi,%r14
   a:	49 89 ff             	mov    %rdi,%r15
   d:	49 bc 00 00 00 00 00 	movabs $0xdffffc0000000000,%r12
  14:	fc ff df
  17:	e8 4e 0f 6f fd       	call   0xfd6f0f6a
  1c:	4d 8d ae b8 01 00 00 	lea    0x1b8(%r14),%r13
  23:	4c 89 eb             	mov    %r13,%rbx
  26:	48 c1 eb 03          	shr    $0x3,%rbx
* 2a:	42 0f b6 04 23       	movzbl (%rbx,%r12,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	75 56                	jne    0x89
  33:	45 8b 65 00          	mov    0x0(%r13),%r12d
  37:	31 ff                	xor    %edi,%edi
  39:	44 89 e6             	mov    %r12d,%esi
  3c:	e8                   	.byte 0xe8
  3d:	49                   	rex.WB
  3e:	13                   	.byte 0x13
  3f:	6f                   	outsl  %ds:(%rsi),(%dx)