Extracting prog: 9m14.407346323s
Minimizing prog: 48m52.223267236s
Simplifying prog options: 11m31.07584325s
Extracting C: 5m2.409824989s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000240)={'lo\x00', <r1=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000009040)=@newqdisc={0x15c, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_cake={{0x9}, {0x14, 0x2, [@TCA_CAKE_DIFFSERV_MODE={0x8, 0x3, 0x1}, @TCA_CAKE_RTT={0x8, 0x7, 0x401}]}}, @TCA_STAB={0x118, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x2, 0x98b4, 0x5, 0x1, 0x6, 0x9}}, {0x4}}, {{0x1c, 0x1, {0x5, 0x80, 0x3, 0x0, 0x0, 0x80000001, 0x1ff}}, {0x4}}, {{0x1c, 0x1, {0x1, 0x1c, 0x9, 0x40000, 0x2, 0x200, 0x80000001}}, {0x4}}, {{0x1c, 0x1, {0x51, 0x4, 0x1000, 0xfffffff8, 0x2, 0x2, 0x3, 0x1}}, {0x6, 0x2, [0xdac]}}, {{0x1c, 0x1, {0x4, 0x16, 0x8, 0x0, 0x1, 0x401, 0x4, 0x2}}, {0x8, 0x2, [0x40, 0x9]}}, {{0x1c, 0x1, {0x3, 0x11, 0x40ba, 0x8, 0x0, 0x9, 0x2, 0x2}}, {0x8, 0x2, [0x1, 0x1]}}, {{0x1c, 0x1, {0xc, 0x1, 0x7, 0x7, 0x0, 0xb, 0xbb, 0x2}}, {0x8, 0x2, [0x7, 0x5]}}, {{0x1c, 0x1, {0x1, 0x0, 0x3, 0x26c99bf7, 0x2, 0xffff8262, 0x8001, 0x2}}, {0x8, 0x2, [0x4, 0x1a73]}}]}]}, 0x15c}, 0x1, 0x0, 0x0, 0x40}, 0x0)

program did not crash
program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000240)={'lo\x00', <r1=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000009040)=@newqdisc={0x15c, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_cake={{0x9}, {0x14, 0x2, [@TCA_CAKE_DIFFSERV_MODE={0x8, 0x3, 0x1}, @TCA_CAKE_RTT={0x8, 0x7, 0x401}]}}, @TCA_STAB={0x118, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x2, 0x98b4, 0x5, 0x1, 0x6, 0x9}}, {0x4}}, {{0x1c, 0x1, {0x5, 0x80, 0x3, 0x0, 0x0, 0x80000001, 0x1ff}}, {0x4}}, {{0x1c, 0x1, {0x1, 0x1c, 0x9, 0x40000, 0x2, 0x200, 0x80000001}}, {0x4}}, {{0x1c, 0x1, {0x51, 0x4, 0x1000, 0xfffffff8, 0x2, 0x2, 0x3, 0x1}}, {0x6, 0x2, [0xdac]}}, {{0x1c, 0x1, {0x4, 0x16, 0x8, 0x0, 0x1, 0x401, 0x4, 0x2}}, {0x8, 0x2, [0x40, 0x9]}}, {{0x1c, 0x1, {0x3, 0x11, 0x40ba, 0x8, 0x0, 0x9, 0x2, 0x2}}, {0x8, 0x2, [0x1, 0x1]}}, {{0x1c, 0x1, {0xc, 0x1, 0x7, 0x7, 0x0, 0xb, 0xbb, 0x2}}, {0x8, 0x2, [0x7, 0x5]}}, {{0x1c, 0x1, {0x1, 0x0, 0x3, 0x26c99bf7, 0x2, 0xffff8262, 0x8001, 0x2}}, {0x8, 0x2, [0x4, 0x1a73]}}]}]}, 0x15c}, 0x1, 0x0, 0x0, 0x40}, 0x0)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {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-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000240)={'lo\x00', <r1=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000009040)=@newqdisc={0x15c, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_cake={{0x9}, {0x14, 0x2, [@TCA_CAKE_DIFFSERV_MODE={0x8, 0x3, 0x1}, @TCA_CAKE_RTT={0x8, 0x7, 0x401}]}}, @TCA_STAB={0x118, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x2, 0x98b4, 0x5, 0x1, 0x6, 0x9}}, {0x4}}, {{0x1c, 0x1, {0x5, 0x80, 0x3, 0x0, 0x0, 0x80000001, 0x1ff}}, {0x4}}, {{0x1c, 0x1, {0x1, 0x1c, 0x9, 0x40000, 0x2, 0x200, 0x80000001}}, {0x4}}, {{0x1c, 0x1, {0x51, 0x4, 0x1000, 0xfffffff8, 0x2, 0x2, 0x3, 0x1}}, {0x6, 0x2, [0xdac]}}, {{0x1c, 0x1, {0x4, 0x16, 0x8, 0x0, 0x1, 0x401, 0x4, 0x2}}, {0x8, 0x2, [0x40, 0x9]}}, {{0x1c, 0x1, {0x3, 0x11, 0x40ba, 0x8, 0x0, 0x9, 0x2, 0x2}}, {0x8, 0x2, [0x1, 0x1]}}, {{0x1c, 0x1, {0xc, 0x1, 0x7, 0x7, 0x0, 0xb, 0xbb, 0x2}}, {0x8, 0x2, [0x7, 0x5]}}, {{0x1c, 0x1, {0x1, 0x0, 0x3, 0x26c99bf7, 0x2, 0xffff8262, 0x8001, 0x2}}, {0x8, 0x2, [0x4, 0x1a73]}}]}]}, 0x15c}, 0x1, 0x0, 0x0, 0x40}, 0x0)

program crashed: INFO: task hung in ret_from_fork
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=6m0s, {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-ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000240)={'lo\x00'})

program did not crash
testing program (duration=6m0s, {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-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000009040)=@newqdisc={0x15c, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, 0x0, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_cake={{0x9}, {0x14, 0x2, [@TCA_CAKE_DIFFSERV_MODE={0x8, 0x3, 0x1}, @TCA_CAKE_RTT={0x8, 0x7, 0x401}]}}, @TCA_STAB={0x118, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x2, 0x98b4, 0x5, 0x1, 0x6, 0x9}}, {0x4}}, {{0x1c, 0x1, {0x5, 0x80, 0x3, 0x0, 0x0, 0x80000001, 0x1ff}}, {0x4}}, {{0x1c, 0x1, {0x1, 0x1c, 0x9, 0x40000, 0x2, 0x200, 0x80000001}}, {0x4}}, {{0x1c, 0x1, {0x51, 0x4, 0x1000, 0xfffffff8, 0x2, 0x2, 0x3, 0x1}}, {0x6, 0x2, [0xdac]}}, {{0x1c, 0x1, {0x4, 0x16, 0x8, 0x0, 0x1, 0x401, 0x4, 0x2}}, {0x8, 0x2, [0x40, 0x9]}}, {{0x1c, 0x1, {0x3, 0x11, 0x40ba, 0x8, 0x0, 0x9, 0x2, 0x2}}, {0x8, 0x2, [0x1, 0x1]}}, {{0x1c, 0x1, {0xc, 0x1, 0x7, 0x7, 0x0, 0xb, 0xbb, 0x2}}, {0x8, 0x2, [0x7, 0x5]}}, {{0x1c, 0x1, {0x1, 0x0, 0x3, 0x26c99bf7, 0x2, 0xffff8262, 0x8001, 0x2}}, {0x8, 0x2, [0x4, 0x1a73]}}]}]}, 0x15c}, 0x1, 0x0, 0x0, 0x40}, 0x0)

program did not crash
testing program (duration=6m0s, {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}}): ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000240)={'lo\x00', <r0=>0x0})
sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000009040)=@newqdisc={0x15c, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r0, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_cake={{0x9}, {0x14, 0x2, [@TCA_CAKE_DIFFSERV_MODE={0x8, 0x3, 0x1}, @TCA_CAKE_RTT={0x8, 0x7, 0x401}]}}, @TCA_STAB={0x118, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x2, 0x98b4, 0x5, 0x1, 0x6, 0x9}}, {0x4}}, {{0x1c, 0x1, {0x5, 0x80, 0x3, 0x0, 0x0, 0x80000001, 0x1ff}}, {0x4}}, {{0x1c, 0x1, {0x1, 0x1c, 0x9, 0x40000, 0x2, 0x200, 0x80000001}}, {0x4}}, {{0x1c, 0x1, {0x51, 0x4, 0x1000, 0xfffffff8, 0x2, 0x2, 0x3, 0x1}}, {0x6, 0x2, [0xdac]}}, {{0x1c, 0x1, {0x4, 0x16, 0x8, 0x0, 0x1, 0x401, 0x4, 0x2}}, {0x8, 0x2, [0x40, 0x9]}}, {{0x1c, 0x1, {0x3, 0x11, 0x40ba, 0x8, 0x0, 0x9, 0x2, 0x2}}, {0x8, 0x2, [0x1, 0x1]}}, {{0x1c, 0x1, {0xc, 0x1, 0x7, 0x7, 0x0, 0xb, 0xbb, 0x2}}, {0x8, 0x2, [0x7, 0x5]}}, {{0x1c, 0x1, {0x1, 0x0, 0x3, 0x26c99bf7, 0x2, 0xffff8262, 0x8001, 0x2}}, {0x8, 0x2, [0x4, 0x1a73]}}]}]}, 0x15c}, 0x1, 0x0, 0x0, 0x40}, 0x0)

program did not crash
testing program (duration=6m0s, {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-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000009040)=@newqdisc={0x15c, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, 0x0, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_cake={{0x9}, {0x14, 0x2, [@TCA_CAKE_DIFFSERV_MODE={0x8, 0x3, 0x1}, @TCA_CAKE_RTT={0x8, 0x7, 0x401}]}}, @TCA_STAB={0x118, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x2, 0x98b4, 0x5, 0x1, 0x6, 0x9}}, {0x4}}, {{0x1c, 0x1, {0x5, 0x80, 0x3, 0x0, 0x0, 0x80000001, 0x1ff}}, {0x4}}, {{0x1c, 0x1, {0x1, 0x1c, 0x9, 0x40000, 0x2, 0x200, 0x80000001}}, {0x4}}, {{0x1c, 0x1, {0x51, 0x4, 0x1000, 0xfffffff8, 0x2, 0x2, 0x3, 0x1}}, {0x6, 0x2, [0xdac]}}, {{0x1c, 0x1, {0x4, 0x16, 0x8, 0x0, 0x1, 0x401, 0x4, 0x2}}, {0x8, 0x2, [0x40, 0x9]}}, {{0x1c, 0x1, {0x3, 0x11, 0x40ba, 0x8, 0x0, 0x9, 0x2, 0x2}}, {0x8, 0x2, [0x1, 0x1]}}, {{0x1c, 0x1, {0xc, 0x1, 0x7, 0x7, 0x0, 0xb, 0xbb, 0x2}}, {0x8, 0x2, [0x7, 0x5]}}, {{0x1c, 0x1, {0x1, 0x0, 0x3, 0x26c99bf7, 0x2, 0xffff8262, 0x8001, 0x2}}, {0x8, 0x2, [0x4, 0x1a73]}}]}]}, 0x15c}, 0x1, 0x0, 0x0, 0x40}, 0x0)

program did not crash
testing program (duration=6m0s, {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-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000240)={'lo\x00'})
sendmsg$nl_route_sched(r0, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {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-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000240)={'lo\x00'})
sendmsg$nl_route_sched(r0, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x40}, 0x0)

program did not crash
testing program (duration=6m0s, {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-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000240)={'lo\x00'})
sendmsg$nl_route_sched(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000780)={0x0}, 0x1, 0x0, 0x0, 0x40}, 0x0)

program did not crash
testing program (duration=6m0s, {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-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000240)={'lo\x00', <r1=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000009040)=@newqdisc={0x48, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_cake={{0x9}, {0x14, 0x2, [@TCA_CAKE_DIFFSERV_MODE={0x8, 0x3, 0x1}, @TCA_CAKE_RTT={0x8, 0x7, 0x401}]}}, @TCA_STAB={0x4}]}, 0x48}, 0x1, 0x0, 0x0, 0x40}, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {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-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: INFO: task hung in rescuer_thread
a never seen crash title: INFO: task hung in rescuer_thread, ignore
simplifying guilty program options
testing program (duration=6m0s, {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-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000240)={'lo\x00', <r1=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000009040)=@newqdisc={0x15c, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_cake={{0x9}, {0x14, 0x2, [@TCA_CAKE_DIFFSERV_MODE={0x8, 0x3, 0x1}, @TCA_CAKE_RTT={0x8, 0x7, 0x401}]}}, @TCA_STAB={0x118, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x2, 0x98b4, 0x5, 0x1, 0x6, 0x9}}, {0x4}}, {{0x1c, 0x1, {0x5, 0x80, 0x3, 0x0, 0x0, 0x80000001, 0x1ff}}, {0x4}}, {{0x1c, 0x1, {0x1, 0x1c, 0x9, 0x40000, 0x2, 0x200, 0x80000001}}, {0x4}}, {{0x1c, 0x1, {0x51, 0x4, 0x1000, 0xfffffff8, 0x2, 0x2, 0x3, 0x1}}, {0x6, 0x2, [0xdac]}}, {{0x1c, 0x1, {0x4, 0x16, 0x8, 0x0, 0x1, 0x401, 0x4, 0x2}}, {0x8, 0x2, [0x40, 0x9]}}, {{0x1c, 0x1, {0x3, 0x11, 0x40ba, 0x8, 0x0, 0x9, 0x2, 0x2}}, {0x8, 0x2, [0x1, 0x1]}}, {{0x1c, 0x1, {0xc, 0x1, 0x7, 0x7, 0x0, 0xb, 0xbb, 0x2}}, {0x8, 0x2, [0x7, 0x5]}}, {{0x1c, 0x1, {0x1, 0x0, 0x3, 0x26c99bf7, 0x2, 0xffff8262, 0x8001, 0x2}}, {0x8, 0x2, [0x4, 0x1a73]}}]}]}, 0x15c}, 0x1, 0x0, 0x0, 0x40}, 0x0)

program crashed: INFO: task hung in worker_attach_to_pool
a never seen crash title: INFO: task hung in worker_attach_to_pool, ignore
testing program (duration=6m0s, {Threaded:true 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-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000240)={'lo\x00', <r1=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000009040)=@newqdisc={0x15c, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_cake={{0x9}, {0x14, 0x2, [@TCA_CAKE_DIFFSERV_MODE={0x8, 0x3, 0x1}, @TCA_CAKE_RTT={0x8, 0x7, 0x401}]}}, @TCA_STAB={0x118, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x2, 0x98b4, 0x5, 0x1, 0x6, 0x9}}, {0x4}}, {{0x1c, 0x1, {0x5, 0x80, 0x3, 0x0, 0x0, 0x80000001, 0x1ff}}, {0x4}}, {{0x1c, 0x1, {0x1, 0x1c, 0x9, 0x40000, 0x2, 0x200, 0x80000001}}, {0x4}}, {{0x1c, 0x1, {0x51, 0x4, 0x1000, 0xfffffff8, 0x2, 0x2, 0x3, 0x1}}, {0x6, 0x2, [0xdac]}}, {{0x1c, 0x1, {0x4, 0x16, 0x8, 0x0, 0x1, 0x401, 0x4, 0x2}}, {0x8, 0x2, [0x40, 0x9]}}, {{0x1c, 0x1, {0x3, 0x11, 0x40ba, 0x8, 0x0, 0x9, 0x2, 0x2}}, {0x8, 0x2, [0x1, 0x1]}}, {{0x1c, 0x1, {0xc, 0x1, 0x7, 0x7, 0x0, 0xb, 0xbb, 0x2}}, {0x8, 0x2, [0x7, 0x5]}}, {{0x1c, 0x1, {0x1, 0x0, 0x3, 0x26c99bf7, 0x2, 0xffff8262, 0x8001, 0x2}}, {0x8, 0x2, [0x4, 0x1a73]}}]}]}, 0x15c}, 0x1, 0x0, 0x0, 0x40}, 0x0)

program did not crash
testing program (duration=6m0s, {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-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000240)={'lo\x00', <r1=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000009040)=@newqdisc={0x15c, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_cake={{0x9}, {0x14, 0x2, [@TCA_CAKE_DIFFSERV_MODE={0x8, 0x3, 0x1}, @TCA_CAKE_RTT={0x8, 0x7, 0x401}]}}, @TCA_STAB={0x118, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x2, 0x98b4, 0x5, 0x1, 0x6, 0x9}}, {0x4}}, {{0x1c, 0x1, {0x5, 0x80, 0x3, 0x0, 0x0, 0x80000001, 0x1ff}}, {0x4}}, {{0x1c, 0x1, {0x1, 0x1c, 0x9, 0x40000, 0x2, 0x200, 0x80000001}}, {0x4}}, {{0x1c, 0x1, {0x51, 0x4, 0x1000, 0xfffffff8, 0x2, 0x2, 0x3, 0x1}}, {0x6, 0x2, [0xdac]}}, {{0x1c, 0x1, {0x4, 0x16, 0x8, 0x0, 0x1, 0x401, 0x4, 0x2}}, {0x8, 0x2, [0x40, 0x9]}}, {{0x1c, 0x1, {0x3, 0x11, 0x40ba, 0x8, 0x0, 0x9, 0x2, 0x2}}, {0x8, 0x2, [0x1, 0x1]}}, {{0x1c, 0x1, {0xc, 0x1, 0x7, 0x7, 0x0, 0xb, 0xbb, 0x2}}, {0x8, 0x2, [0x7, 0x5]}}, {{0x1c, 0x1, {0x1, 0x0, 0x3, 0x26c99bf7, 0x2, 0xffff8262, 0x8001, 0x2}}, {0x8, 0x2, [0x4, 0x1a73]}}]}]}, 0x15c}, 0x1, 0x0, 0x0, 0x40}, 0x0)

program crashed: INFO: task hung in rescuer_thread
validation run: crashed=true
testing program (duration=6m0s, {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-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000240)={'lo\x00', <r1=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000009040)=@newqdisc={0x15c, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_cake={{0x9}, {0x14, 0x2, [@TCA_CAKE_DIFFSERV_MODE={0x8, 0x3, 0x1}, @TCA_CAKE_RTT={0x8, 0x7, 0x401}]}}, @TCA_STAB={0x118, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x2, 0x98b4, 0x5, 0x1, 0x6, 0x9}}, {0x4}}, {{0x1c, 0x1, {0x5, 0x80, 0x3, 0x0, 0x0, 0x80000001, 0x1ff}}, {0x4}}, {{0x1c, 0x1, {0x1, 0x1c, 0x9, 0x40000, 0x2, 0x200, 0x80000001}}, {0x4}}, {{0x1c, 0x1, {0x51, 0x4, 0x1000, 0xfffffff8, 0x2, 0x2, 0x3, 0x1}}, {0x6, 0x2, [0xdac]}}, {{0x1c, 0x1, {0x4, 0x16, 0x8, 0x0, 0x1, 0x401, 0x4, 0x2}}, {0x8, 0x2, [0x40, 0x9]}}, {{0x1c, 0x1, {0x3, 0x11, 0x40ba, 0x8, 0x0, 0x9, 0x2, 0x2}}, {0x8, 0x2, [0x1, 0x1]}}, {{0x1c, 0x1, {0xc, 0x1, 0x7, 0x7, 0x0, 0xb, 0xbb, 0x2}}, {0x8, 0x2, [0x7, 0x5]}}, {{0x1c, 0x1, {0x1, 0x0, 0x3, 0x26c99bf7, 0x2, 0xffff8262, 0x8001, 0x2}}, {0x8, 0x2, [0x4, 0x1a73]}}]}]}, 0x15c}, 0x1, 0x0, 0x0, 0x40}, 0x0)

program crashed: INFO: task hung in synchronize_rcu
validation run: crashed=true
testing program (duration=6m0s, {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-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000240)={'lo\x00', <r1=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000009040)=@newqdisc={0x15c, 0x24, 0xd0f, 0x0, 0x0, {0x60, 0x0, 0x0, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_cake={{0x9}, {0x14, 0x2, [@TCA_CAKE_DIFFSERV_MODE={0x8, 0x3, 0x1}, @TCA_CAKE_RTT={0x8, 0x7, 0x401}]}}, @TCA_STAB={0x118, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x2, 0x98b4, 0x5, 0x1, 0x6, 0x9}}, {0x4}}, {{0x1c, 0x1, {0x5, 0x80, 0x3, 0x0, 0x0, 0x80000001, 0x1ff}}, {0x4}}, {{0x1c, 0x1, {0x1, 0x1c, 0x9, 0x40000, 0x2, 0x200, 0x80000001}}, {0x4}}, {{0x1c, 0x1, {0x51, 0x4, 0x1000, 0xfffffff8, 0x2, 0x2, 0x3, 0x1}}, {0x6, 0x2, [0xdac]}}, {{0x1c, 0x1, {0x4, 0x16, 0x8, 0x0, 0x1, 0x401, 0x4, 0x2}}, {0x8, 0x2, [0x40, 0x9]}}, {{0x1c, 0x1, {0x3, 0x11, 0x40ba, 0x8, 0x0, 0x9, 0x2, 0x2}}, {0x8, 0x2, [0x1, 0x1]}}, {{0x1c, 0x1, {0xc, 0x1, 0x7, 0x7, 0x0, 0xb, 0xbb, 0x2}}, {0x8, 0x2, [0x7, 0x5]}}, {{0x1c, 0x1, {0x1, 0x0, 0x3, 0x26c99bf7, 0x2, 0xffff8262, 0x8001, 0x2}}, {0x8, 0x2, [0x4, 0x1a73]}}]}]}, 0x15c}, 0x1, 0x0, 0x0, 0x40}, 0x0)

program crashed: INFO: task hung in synchronize_rcu
validation run: crashed=true
reproducing took 1h30m0.405260272s
repro crashed as (corrupted=false):
INFO: task syz-executor:5959 blocked for more than 146 seconds.
      Not tainted syzkaller #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:22136 pid:5959  tgid:5959  ppid:1      task_flags:0x40054c flags:0x00080003
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5260 [inline]
 __schedule+0x14ea/0x5050 kernel/sched/core.c:6867
 __schedule_loop kernel/sched/core.c:6949 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:6964
 schedule_timeout+0xc3/0x2c0 kernel/time/sleep_timeout.c:75
 do_wait_for_common kernel/sched/completion.c:100 [inline]
 __wait_for_common kernel/sched/completion.c:121 [inline]
 wait_for_common kernel/sched/completion.c:132 [inline]
 wait_for_completion+0x2cc/0x5e0 kernel/sched/completion.c:153
 __synchronize_srcu+0x329/0x3e0 kernel/rcu/srcutree.c:1518
 hci_unregister_dev+0x148/0x5a0 net/bluetooth/hci_core.c:2703
 vhci_release+0x152/0x1a0 drivers/bluetooth/hci_vhci.c:690
 __fput+0x44f/0xa70 fs/file_table.c:468
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x69b/0x2310 kernel/exit.c:971
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1112
 get_signal+0x1284/0x1330 kernel/signal.c:3034
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:75
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
 do_syscall_64+0x2b7/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f52c6d5b78e
RSP: 002b:00007fff3beee5c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: 0000000000000020 RBX: 00005555582e8500 RCX: 00007f52c6d5b78e
RDX: 0000000000000020 RSI: 00007f52c7b44670 RDI: 0000000000000005
RBP: 0000000000000001 R08: 00007fff3beee644 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005
R13: 00007fff3beee6ac R14: 00007f52c7b44670 R15: 0000000000000000
 </TASK>
INFO: task syz-executor:5960 blocked for more than 176 seconds.
      Not tainted syzkaller #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:21944 pid:5960  tgid:5960  ppid:1      task_flags:0x40054c flags:0x00080003
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5260 [inline]
 __schedule+0x14ea/0x5050 kernel/sched/core.c:6867
 __schedule_loop kernel/sched/core.c:6949 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:6964
 schedule_timeout+0xc3/0x2c0 kernel/time/sleep_timeout.c:75
 do_wait_for_common kernel/sched/completion.c:100 [inline]
 __wait_for_common kernel/sched/completion.c:121 [inline]
 wait_for_common kernel/sched/completion.c:132 [inline]
 wait_for_completion+0x2cc/0x5e0 kernel/sched/completion.c:153
 __synchronize_srcu+0x329/0x3e0 kernel/rcu/srcutree.c:1518
 hci_unregister_dev+0x148/0x5a0 net/bluetooth/hci_core.c:2703
 vhci_release+0x152/0x1a0 drivers/bluetooth/hci_vhci.c:690
 __fput+0x44f/0xa70 fs/file_table.c:468
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x69b/0x2310 kernel/exit.c:971
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1112
 get_signal+0x1284/0x1330 kernel/signal.c:3034
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:75
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
 do_syscall_64+0x2b7/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8c3835b78e
RSP: 002b:00007fff04f48868 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: 0000000000000028 RBX: 000055555aa86500 RCX: 00007f8c3835b78e
RDX: 0000000000000028 RSI: 00007f8c39144670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007fff04f488e4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f8c39144670 R15: 0000000000000000
 </TASK>
INFO: task syz-executor:5961 blocked for more than 155 seconds.
      Not tainted syzkaller #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:22264 pid:5961  tgid:5961  ppid:1      task_flags:0x40054c flags:0x00080003
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5260 [inline]
 __schedule+0x14ea/0x5050 kernel/sched/core.c:6867

final repro crashed as (corrupted=false):
INFO: task syz-executor:5959 blocked for more than 146 seconds.
      Not tainted syzkaller #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:22136 pid:5959  tgid:5959  ppid:1      task_flags:0x40054c flags:0x00080003
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5260 [inline]
 __schedule+0x14ea/0x5050 kernel/sched/core.c:6867
 __schedule_loop kernel/sched/core.c:6949 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:6964
 schedule_timeout+0xc3/0x2c0 kernel/time/sleep_timeout.c:75
 do_wait_for_common kernel/sched/completion.c:100 [inline]
 __wait_for_common kernel/sched/completion.c:121 [inline]
 wait_for_common kernel/sched/completion.c:132 [inline]
 wait_for_completion+0x2cc/0x5e0 kernel/sched/completion.c:153
 __synchronize_srcu+0x329/0x3e0 kernel/rcu/srcutree.c:1518
 hci_unregister_dev+0x148/0x5a0 net/bluetooth/hci_core.c:2703
 vhci_release+0x152/0x1a0 drivers/bluetooth/hci_vhci.c:690
 __fput+0x44f/0xa70 fs/file_table.c:468
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x69b/0x2310 kernel/exit.c:971
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1112
 get_signal+0x1284/0x1330 kernel/signal.c:3034
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:75
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
 do_syscall_64+0x2b7/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f52c6d5b78e
RSP: 002b:00007fff3beee5c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: 0000000000000020 RBX: 00005555582e8500 RCX: 00007f52c6d5b78e
RDX: 0000000000000020 RSI: 00007f52c7b44670 RDI: 0000000000000005
RBP: 0000000000000001 R08: 00007fff3beee644 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005
R13: 00007fff3beee6ac R14: 00007f52c7b44670 R15: 0000000000000000
 </TASK>
INFO: task syz-executor:5960 blocked for more than 176 seconds.
      Not tainted syzkaller #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:21944 pid:5960  tgid:5960  ppid:1      task_flags:0x40054c flags:0x00080003
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5260 [inline]
 __schedule+0x14ea/0x5050 kernel/sched/core.c:6867
 __schedule_loop kernel/sched/core.c:6949 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:6964
 schedule_timeout+0xc3/0x2c0 kernel/time/sleep_timeout.c:75
 do_wait_for_common kernel/sched/completion.c:100 [inline]
 __wait_for_common kernel/sched/completion.c:121 [inline]
 wait_for_common kernel/sched/completion.c:132 [inline]
 wait_for_completion+0x2cc/0x5e0 kernel/sched/completion.c:153
 __synchronize_srcu+0x329/0x3e0 kernel/rcu/srcutree.c:1518
 hci_unregister_dev+0x148/0x5a0 net/bluetooth/hci_core.c:2703
 vhci_release+0x152/0x1a0 drivers/bluetooth/hci_vhci.c:690
 __fput+0x44f/0xa70 fs/file_table.c:468
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x69b/0x2310 kernel/exit.c:971
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1112
 get_signal+0x1284/0x1330 kernel/signal.c:3034
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:75
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
 do_syscall_64+0x2b7/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8c3835b78e
RSP: 002b:00007fff04f48868 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: 0000000000000028 RBX: 000055555aa86500 RCX: 00007f8c3835b78e
RDX: 0000000000000028 RSI: 00007f8c39144670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007fff04f488e4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f8c39144670 R15: 0000000000000000
 </TASK>
INFO: task syz-executor:5961 blocked for more than 155 seconds.
      Not tainted syzkaller #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:22264 pid:5961  tgid:5961  ppid:1      task_flags:0x40054c flags:0x00080003
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5260 [inline]
 __schedule+0x14ea/0x5050 kernel/sched/core.c:6867