Extracting prog: 7m16.299964027s Minimizing prog: 1h5m24.295534587s Simplifying prog options: 9m5.194022952s Extracting C: 3m10.320729336s 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-fchdir-recvmmsg-lseek-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 0x0) fchdir(0xffffffffffffffff) recvmmsg(0xffffffffffffffff, &(0x7f0000000f40)=[{{0x0, 0x0, 0x0}}], 0x1, 0x20, 0x0) lseek(0xffffffffffffffff, 0x0, 0x0) syz_emit_ethernet(0xda, &(0x7f0000000140)={@broadcast, @dev, @void, {@ipv6={0x86dd, @udp={0x0, 0x6, "2e5cea", 0x8, 0x3c, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02', @mcast2, {[@routing={0x67}], {0x0, 0x0, 0x9c, 0x0, @wg=@initiation={0x1, 0x0, "ec9623abcc4bd2ceffa36fadcd9330abb76fa7040ef919fc7b0f9b0da2e9e929", "6e35f0c80882f70000c08862205573dd2a5eb2f85b00", "da1274d5285d85f9776ed87dab0d73f66c063c8bc0ea74bd2ef59e05", {"b69bcf4bd1856a7a3a60c503f240ae8f"}}}}}}}}, 0x0) 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-fchdir-recvmmsg-lseek-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 0x0) fchdir(0xffffffffffffffff) recvmmsg(0xffffffffffffffff, &(0x7f0000000f40)=[{{0x0, 0x0, 0x0}}], 0x1, 0x20, 0x0) lseek(0xffffffffffffffff, 0x0, 0x0) syz_emit_ethernet(0xda, &(0x7f0000000140)={@broadcast, @dev, @void, {@ipv6={0x86dd, @udp={0x0, 0x6, "2e5cea", 0x8, 0x3c, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02', @mcast2, {[@routing={0x67}], {0x0, 0x0, 0x9c, 0x0, @wg=@initiation={0x1, 0x0, "ec9623abcc4bd2ceffa36fadcd9330abb76fa7040ef919fc7b0f9b0da2e9e929", "6e35f0c80882f70000c08862205573dd2a5eb2f85b00", "da1274d5285d85f9776ed87dab0d73f66c063c8bc0ea74bd2ef59e05", {"b69bcf4bd1856a7a3a60c503f240ae8f"}}}}}}}}, 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-fchdir-recvmmsg-lseek-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 0x0) fchdir(0xffffffffffffffff) recvmmsg(0xffffffffffffffff, &(0x7f0000000f40)=[{{0x0, 0x0, 0x0}}], 0x1, 0x20, 0x0) lseek(0xffffffffffffffff, 0x0, 0x0) syz_emit_ethernet(0xda, &(0x7f0000000140)={@broadcast, @dev, @void, {@ipv6={0x86dd, @udp={0x0, 0x6, "2e5cea", 0x8, 0x3c, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02', @mcast2, {[@routing={0x67}], {0x0, 0x0, 0x9c, 0x0, @wg=@initiation={0x1, 0x0, "ec9623abcc4bd2ceffa36fadcd9330abb76fa7040ef919fc7b0f9b0da2e9e929", "6e35f0c80882f70000c08862205573dd2a5eb2f85b00", "da1274d5285d85f9776ed87dab0d73f66c063c8bc0ea74bd2ef59e05", {"b69bcf4bd1856a7a3a60c503f240ae8f"}}}}}}}}, 0x0) program crashed: INFO: task hung in uevent_show single: successfully extracted reproducer found reproducer with 8 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-fchdir-recvmmsg-lseek detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 0x0) fchdir(0xffffffffffffffff) recvmmsg(0xffffffffffffffff, &(0x7f0000000f40)=[{{0x0, 0x0, 0x0}}], 0x1, 0x20, 0x0) lseek(0xffffffffffffffff, 0x0, 0x0) program crashed: BUG: workqueue lockup 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-fchdir-recvmmsg detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 0x0) fchdir(0xffffffffffffffff) recvmmsg(0xffffffffffffffff, &(0x7f0000000f40)=[{{0x0, 0x0, 0x0}}], 0x1, 0x20, 0x0) program crashed: INFO: task hung in hci_remote_features_evt 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-fchdir detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 0x0) fchdir(0xffffffffffffffff) program crashed: unregister_netdevice: waiting for DEV to become free 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 0x0) program crashed: unregister_netdevice: waiting for DEV to become free 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: socket$nl_route(0x10, 0x3, 0x0) r0 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000c80)={'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$nl_route-socket$inet6_udp-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) socket$inet6_udp(0xa, 0x2, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 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$nl_route-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000c80)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 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$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000c80)={'lo\x00', 0x0}) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00'}) sendmsg$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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00'}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00'}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x4}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x58}}, 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched program crashed: INFO: rcu detected stall in corrupted a never seen crash title: INFO: rcu detected stall in corrupted, 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 0x0) program crashed: INFO: task hung in rtnl_lock a never seen crash title: INFO: task hung in rtnl_lock, 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 0x0) program crashed: no output from test machine a never seen crash title: no output from test machine, ignore 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 0x0) program crashed: BUG: soft lockup in addrconf_rs_timer 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 0x0) program crashed: BUG: workqueue lockup 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$nl_route-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000c80)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0x4ee4e6a52ff56541, 0x0, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_fq={{0x7}, {0x34, 0x2, [@TCA_FQ_INITIAL_QUANTUM={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8, 0x6, 0x71}, @TCA_FQ_PLIMIT={0x8, 0x1, 0xfff}, @TCA_FQ_LOW_RATE_THRESHOLD={0x8}, @TCA_FQ_FLOW_DEFAULT_RATE={0x8}, @TCA_FQ_QUANTUM={0x8, 0x3, 0x2}]}}, @TCA_STAB={0x28, 0x8, 0x0, 0x1, [{{0x1c, 0x1, {0x0, 0x9, 0xa, 0x20009, 0x0, 0x6, 0x0, 0x1}}, {0x6, 0x2, [0x1400]}}]}]}, 0x88}}, 0x0) program crashed: INFO: task hung in devlink_unregister validation run: crashed=true reproducing took 1h32m45.464249976s repro crashed as (corrupted=false): INFO: task syz-executor:4475 blocked for more than 158 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:4475 ppid:1 flags:0x00000009 Call trace: __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5246 [inline] __schedule+0xdb4/0x1a6c kernel/sched/core.c:6563 schedule+0xc4/0x170 kernel/sched/core.c:6639 schedule_timeout+0xc8/0x2f4 kernel/time/timer.c:2144 do_wait_for_common+0x28c/0x3ec kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x44/0x5c kernel/sched/completion.c:138 devlink_unregister+0xe8/0x6bc net/devlink/leftover.c:9769 nsim_drv_remove+0x54/0x16c drivers/net/netdevsim/dev.c:1677 nsim_bus_remove+0x20/0x30 drivers/net/netdevsim/bus.c:246 device_remove drivers/base/dd.c:547 [inline] __device_release_driver drivers/base/dd.c:1279 [inline] device_release_driver_internal+0x3d4/0x6e4 drivers/base/dd.c:1305 device_release_driver+0x28/0x38 drivers/base/dd.c:1328 bus_remove_device+0x294/0x384 drivers/base/bus.c:531 device_del+0x580/0x990 drivers/base/core.c:3900 device_unregister+0x2c/0xc8 drivers/base/core.c:3943 nsim_bus_dev_del drivers/net/netdevsim/bus.c:310 [inline] del_device_store+0x288/0x330 drivers/net/netdevsim/bus.c:219 bus_attr_store+0x80/0xa4 drivers/base/bus.c:124 sysfs_kf_write+0x1f8/0x274 fs/sysfs/file.c:140 kernfs_fop_write_iter+0x390/0x4b4 fs/kernfs/file.c:352 call_write_iter include/linux/fs.h:2271 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x3c8/0x7c8 fs/read_write.c:584 ksys_write+0x12c/0x228 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Showing all locks held in the system: 1 lock held by rcu_gp/3: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 2 locks held by kworker/0:0/7: 2 locks held by kworker/u4:0/9: 1 lock held by mm_percpu_wq/10: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 2 locks held by kworker/u4:1/11: 1 lock held by rcu_tasks_kthre/12: #0: ffff800015577db0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xc48 kernel/rcu/tasks.h:517 1 lock held by rcu_tasks_trace/13: #0: ffff8000155785d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xc48 kernel/rcu/tasks.h:517 2 locks held by kworker/0:1/14: 2 locks held by kworker/1:0/22: 2 locks held by kworker/1:1/24: 1 lock held by khungtaskd/28: #0: ffff800015577440 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349 1 lock held by writeback/30: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x40/0x274 kernel/workqueue.c:1866 2 locks held by kworker/u4:2/39: 2 locks held by kworker/0:2/112: 6 locks held by kworker/u4:3/164: #0: ffff0000c0845138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff800020a27c40 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff800017a19610 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x144/0xa90 net/core/net_namespace.c:594 #3: ffff0000cae5c2f8 (&devlink->lock_key){+.+.}-{3:3}, at: devlink_pernet_pre_exit+0xfc/0x2b0 net/devlink/leftover.c:12502 #4: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74 #5: ffff80001557d0f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline] #5: ffff80001557d0f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2b4/0x780 kernel/rcu/tree_exp.h:962 3 locks held by kworker/1:2/1516: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff800025557c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff0000d141b240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1d8/0x2708 drivers/net/netdevsim/fib.c:1491 8 locks held by kworker/u4:4/1608: 1 lock held by dm_bufio_cache/2997: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x40/0x274 kernel/workqueue.c:1866 1 lock held by mld/3645: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by ipv6_addrconf/3646: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by bat_events/3725: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 2 locks held by kworker/0:3/3901: 2 locks held by getty/4082: #0: ffff0000d6be7098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800020a4b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2e8/0xfa8 drivers/tty/n_tty.c:2198 1 lock held by kworker/u5:2/4389: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x40/0x274 kernel/workqueue.c:1866 2 locks held by kworker/0:4/4404: 2 locks held by kworker/1:3/4419: 1 lock held by wg-crypt-wg0/4429: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg1/4432: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg2/4435: 2 locks held by kworker/0:5/4445: 2 locks held by kworker/0:6/4446: 2 locks held by kworker/0:7/4448: 2 locks held by kworker/0:8/4449: 2 locks held by kworker/0:9/4450: 2 locks held by kworker/0:10/4451: 3 locks held by kworker/0:11/4452: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff800021297c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff0000db9b0240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1d8/0x2708 drivers/net/netdevsim/fib.c:1491 2 locks held by kworker/0:12/4454: 2 locks held by kworker/0:13/4455: 3 locks held by kworker/0:14/4457: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff8000210c7c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff0000d3d50240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1d8/0x2708 drivers/net/netdevsim/fib.c:1491 2 locks held by kworker/0:15/4458: 3 locks held by kworker/0:16/4459: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff800021397c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff0000d24d7240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1d8/0x2708 drivers/net/netdevsim/fib.c:1491 2 locks held by kworker/u4:5/4461: 2 locks held by syz-executor/4466: #0: ffff0000efa911e0 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:521 [inline] #0: ffff0000efa911e0 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x204/0x4c8 net/bluetooth/hci_core.c:2717 #1: ffff0000efa90428 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x448/0xff0 net/bluetooth/hci_sync.c:5292 5 locks held by syz-executor/4475: #0: ffff0000d95a6460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x254/0x7c8 fs/read_write.c:580 #1: ffff0000d39a5488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1b8/0x4b4 fs/kernfs/file.c:343 #2: ffff0000d05c13a8 (kn->active#56){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline] #2: ffff0000d05c13a8 (kn->active#56){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1f8/0x4b4 fs/kernfs/file.c:344 #3: ffff800016dd0e28 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xdc/0x330 drivers/net/netdevsim/bus.c:209 #4: ffff0000cae5b0e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:885 [inline] #4: ffff0000cae5b0e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1099 [inline] #4: ffff0000cae5b0e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x9c/0x6e4 drivers/base/dd.c:1302 1 lock held by wg-crypt-wg0/4491: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg1/4492: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg2/4493: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x40/0x274 kernel/workqueue.c:1866 1 lock held by wg-crypt-wg0/4495: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg1/4496: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg2/4497: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg0/4500: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg1/4502: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg2/4503: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg0/4507: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg1/4509: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg2/4511: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 2 locks held by kworker/1:5/4512: 2 locks held by kworker/u4:6/4513: 1 lock held by kworker/1:6/4981: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x40/0x274 kernel/workqueue.c:1866 2 locks held by kworker/u4:7/4983: 2 locks held by kworker/u4:8/4984: 2 locks held by kworker/u4:9/4991: 1 lock held by kworker/0:17/4996: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:2361 [inline] #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_thread+0x68/0xfe8 kernel/workqueue.c:2387 2 locks held by kworker/u4:10/4999: 1 lock held by syz-executor/5002: #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x64c/0xcc4 net/core/rtnetlink.c:6163 1 lock held by syz-executor/5004: #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: __rtnl_newlink net/core/rtnetlink.c:3646 [inline] #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_newlink+0x8e0/0x1af0 net/core/rtnetlink.c:3669 1 lock held by syz-executor/5008: #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x64c/0xcc4 net/core/rtnetlink.c:6163 1 lock held by syz-executor/5009: #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x64c/0xcc4 net/core/rtnetlink.c:6163 1 lock held by bond0/5016: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:2361 [inline] #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x74/0xe08 kernel/workqueue.c:2498 2 locks held by dhcpcd/5023: #0: ffff0000f2f92130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1805 [inline] #0: ffff0000f2f92130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x48/0xaf4 net/packet/af_packet.c:3282 #1: ffff80001557d0f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline] #1: ffff80001557d0f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2b4/0x780 kernel/rcu/tree_exp.h:962 1 lock held by dhcpcd/5024: #0: ffff0000f42ae130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1805 [inline] #0: ffff0000f42ae130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x48/0xaf4 net/packet/af_packet.c:3282 1 lock held by dhcpcd/5025: #0: ffff0000f42aa130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1805 [inline] #0: ffff0000f42aa130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x48/0xaf4 net/packet/af_packet.c:3282 1 lock held by dhcpcd/5026: #0: ffff0000f42ac130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1805 [inline] #0: ffff0000f42ac130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x48/0xaf4 net/packet/af_packet.c:3282 1 lock held by dhcpcd/5027: #0: ffff0000d0eb4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1805 [inline] #0: ffff0000d0eb4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x48/0xaf4 net/packet/af_packet.c:3282 1 lock held by syz-executor/5028: #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x64c/0xcc4 net/core/rtnetlink.c:6163 1 lock held by dhcpcd/5031: #0: ffff0000d0904130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1805 [inline] #0: ffff0000d0904130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x48/0xaf4 net/packet/af_packet.c:3282 1 lock held by syz-executor/5040: #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x64c/0xcc4 net/core/rtnetlink.c:6163 2 locks held by kworker/u4:11/5047: 1 lock held by kworker/u4:12/5049: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x40/0x274 kernel/workqueue.c:1866 ============================================= final repro crashed as (corrupted=false): INFO: task syz-executor:4475 blocked for more than 158 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:4475 ppid:1 flags:0x00000009 Call trace: __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5246 [inline] __schedule+0xdb4/0x1a6c kernel/sched/core.c:6563 schedule+0xc4/0x170 kernel/sched/core.c:6639 schedule_timeout+0xc8/0x2f4 kernel/time/timer.c:2144 do_wait_for_common+0x28c/0x3ec kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x44/0x5c kernel/sched/completion.c:138 devlink_unregister+0xe8/0x6bc net/devlink/leftover.c:9769 nsim_drv_remove+0x54/0x16c drivers/net/netdevsim/dev.c:1677 nsim_bus_remove+0x20/0x30 drivers/net/netdevsim/bus.c:246 device_remove drivers/base/dd.c:547 [inline] __device_release_driver drivers/base/dd.c:1279 [inline] device_release_driver_internal+0x3d4/0x6e4 drivers/base/dd.c:1305 device_release_driver+0x28/0x38 drivers/base/dd.c:1328 bus_remove_device+0x294/0x384 drivers/base/bus.c:531 device_del+0x580/0x990 drivers/base/core.c:3900 device_unregister+0x2c/0xc8 drivers/base/core.c:3943 nsim_bus_dev_del drivers/net/netdevsim/bus.c:310 [inline] del_device_store+0x288/0x330 drivers/net/netdevsim/bus.c:219 bus_attr_store+0x80/0xa4 drivers/base/bus.c:124 sysfs_kf_write+0x1f8/0x274 fs/sysfs/file.c:140 kernfs_fop_write_iter+0x390/0x4b4 fs/kernfs/file.c:352 call_write_iter include/linux/fs.h:2271 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x3c8/0x7c8 fs/read_write.c:584 ksys_write+0x12c/0x228 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Showing all locks held in the system: 1 lock held by rcu_gp/3: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 2 locks held by kworker/0:0/7: 2 locks held by kworker/u4:0/9: 1 lock held by mm_percpu_wq/10: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 2 locks held by kworker/u4:1/11: 1 lock held by rcu_tasks_kthre/12: #0: ffff800015577db0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xc48 kernel/rcu/tasks.h:517 1 lock held by rcu_tasks_trace/13: #0: ffff8000155785d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xc48 kernel/rcu/tasks.h:517 2 locks held by kworker/0:1/14: 2 locks held by kworker/1:0/22: 2 locks held by kworker/1:1/24: 1 lock held by khungtaskd/28: #0: ffff800015577440 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349 1 lock held by writeback/30: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x40/0x274 kernel/workqueue.c:1866 2 locks held by kworker/u4:2/39: 2 locks held by kworker/0:2/112: 6 locks held by kworker/u4:3/164: #0: ffff0000c0845138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff800020a27c40 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff800017a19610 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x144/0xa90 net/core/net_namespace.c:594 #3: ffff0000cae5c2f8 (&devlink->lock_key){+.+.}-{3:3}, at: devlink_pernet_pre_exit+0xfc/0x2b0 net/devlink/leftover.c:12502 #4: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74 #5: ffff80001557d0f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline] #5: ffff80001557d0f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2b4/0x780 kernel/rcu/tree_exp.h:962 3 locks held by kworker/1:2/1516: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff800025557c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff0000d141b240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1d8/0x2708 drivers/net/netdevsim/fib.c:1491 8 locks held by kworker/u4:4/1608: 1 lock held by dm_bufio_cache/2997: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x40/0x274 kernel/workqueue.c:1866 1 lock held by mld/3645: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by ipv6_addrconf/3646: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by bat_events/3725: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 2 locks held by kworker/0:3/3901: 2 locks held by getty/4082: #0: ffff0000d6be7098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800020a4b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2e8/0xfa8 drivers/tty/n_tty.c:2198 1 lock held by kworker/u5:2/4389: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x40/0x274 kernel/workqueue.c:1866 2 locks held by kworker/0:4/4404: 2 locks held by kworker/1:3/4419: 1 lock held by wg-crypt-wg0/4429: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg1/4432: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg2/4435: 2 locks held by kworker/0:5/4445: 2 locks held by kworker/0:6/4446: 2 locks held by kworker/0:7/4448: 2 locks held by kworker/0:8/4449: 2 locks held by kworker/0:9/4450: 2 locks held by kworker/0:10/4451: 3 locks held by kworker/0:11/4452: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff800021297c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff0000db9b0240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1d8/0x2708 drivers/net/netdevsim/fib.c:1491 2 locks held by kworker/0:12/4454: 2 locks held by kworker/0:13/4455: 3 locks held by kworker/0:14/4457: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff8000210c7c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff0000d3d50240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1d8/0x2708 drivers/net/netdevsim/fib.c:1491 2 locks held by kworker/0:15/4458: 3 locks held by kworker/0:16/4459: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff800021397c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff0000d24d7240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1d8/0x2708 drivers/net/netdevsim/fib.c:1491 2 locks held by kworker/u4:5/4461: 2 locks held by syz-executor/4466: #0: ffff0000efa911e0 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:521 [inline] #0: ffff0000efa911e0 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x204/0x4c8 net/bluetooth/hci_core.c:2717 #1: ffff0000efa90428 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x448/0xff0 net/bluetooth/hci_sync.c:5292 5 locks held by syz-executor/4475: #0: ffff0000d95a6460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x254/0x7c8 fs/read_write.c:580 #1: ffff0000d39a5488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1b8/0x4b4 fs/kernfs/file.c:343 #2: ffff0000d05c13a8 (kn->active#56){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline] #2: ffff0000d05c13a8 (kn->active#56){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1f8/0x4b4 fs/kernfs/file.c:344 #3: ffff800016dd0e28 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xdc/0x330 drivers/net/netdevsim/bus.c:209 #4: ffff0000cae5b0e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:885 [inline] #4: ffff0000cae5b0e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1099 [inline] #4: ffff0000cae5b0e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x9c/0x6e4 drivers/base/dd.c:1302 1 lock held by wg-crypt-wg0/4491: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg1/4492: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg2/4493: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x40/0x274 kernel/workqueue.c:1866 1 lock held by wg-crypt-wg0/4495: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg1/4496: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg2/4497: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg0/4500: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg1/4502: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg2/4503: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg0/4507: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg1/4509: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 1 lock held by wg-crypt-wg2/4511: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x5c/0x228 kernel/workqueue.c:1900 2 locks held by kworker/1:5/4512: 2 locks held by kworker/u4:6/4513: 1 lock held by kworker/1:6/4981: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x40/0x274 kernel/workqueue.c:1866 2 locks held by kworker/u4:7/4983: 2 locks held by kworker/u4:8/4984: 2 locks held by kworker/u4:9/4991: 1 lock held by kworker/0:17/4996: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:2361 [inline] #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_thread+0x68/0xfe8 kernel/workqueue.c:2387 2 locks held by kworker/u4:10/4999: 1 lock held by syz-executor/5002: #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x64c/0xcc4 net/core/rtnetlink.c:6163 1 lock held by syz-executor/5004: #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: __rtnl_newlink net/core/rtnetlink.c:3646 [inline] #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_newlink+0x8e0/0x1af0 net/core/rtnetlink.c:3669 1 lock held by syz-executor/5008: #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x64c/0xcc4 net/core/rtnetlink.c:6163 1 lock held by syz-executor/5009: #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x64c/0xcc4 net/core/rtnetlink.c:6163 1 lock held by bond0/5016: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:2361 [inline] #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x74/0xe08 kernel/workqueue.c:2498 2 locks held by dhcpcd/5023: #0: ffff0000f2f92130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1805 [inline] #0: ffff0000f2f92130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x48/0xaf4 net/packet/af_packet.c:3282 #1: ffff80001557d0f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline] #1: ffff80001557d0f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2b4/0x780 kernel/rcu/tree_exp.h:962 1 lock held by dhcpcd/5024: #0: ffff0000f42ae130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1805 [inline] #0: ffff0000f42ae130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x48/0xaf4 net/packet/af_packet.c:3282 1 lock held by dhcpcd/5025: #0: ffff0000f42aa130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1805 [inline] #0: ffff0000f42aa130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x48/0xaf4 net/packet/af_packet.c:3282 1 lock held by dhcpcd/5026: #0: ffff0000f42ac130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1805 [inline] #0: ffff0000f42ac130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x48/0xaf4 net/packet/af_packet.c:3282 1 lock held by dhcpcd/5027: #0: ffff0000d0eb4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1805 [inline] #0: ffff0000d0eb4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x48/0xaf4 net/packet/af_packet.c:3282 1 lock held by syz-executor/5028: #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x64c/0xcc4 net/core/rtnetlink.c:6163 1 lock held by dhcpcd/5031: #0: ffff0000d0904130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1805 [inline] #0: ffff0000d0904130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x48/0xaf4 net/packet/af_packet.c:3282 1 lock held by syz-executor/5040: #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffff800017a25e88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x64c/0xcc4 net/core/rtnetlink.c:6163 2 locks held by kworker/u4:11/5047: 1 lock held by kworker/u4:12/5049: #0: ffff800015427e88 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x40/0x274 kernel/workqueue.c:1866 =============================================