Extracting prog: 6m43.789473014s
Minimizing prog: 55m27.707021708s
Simplifying prog options: 7m54.202971905s
Extracting C: 1m44.148089909s
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$ifreq_SIOCGIFINDEX_team-socket$netlink-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x11, 0x800000003, 0x0)
ioctl$ifreq_SIOCGIFINDEX_team(r0, 0x8933, &(0x7f0000000600)={'team0\x00', <r1=>0x0})
r2 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r2, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000400)=@newqdisc={0xac, 0x24, 0xf0b, 0x0, 0x0, {0x0, 0x0, 0x12, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x7c, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x2, [], 0x0, [0x8, 0x4], [0x0, 0x8]}}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x18, 0x2, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x5}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xcb2}]}]}]}}]}, 0xac}}, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$ifreq_SIOCGIFINDEX_team-socket$netlink-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x11, 0x800000003, 0x0)
ioctl$ifreq_SIOCGIFINDEX_team(r0, 0x8933, &(0x7f0000000600)={'team0\x00', <r1=>0x0})
r2 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r2, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000400)=@newqdisc={0xac, 0x24, 0xf0b, 0x0, 0x0, {0x0, 0x0, 0x12, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x7c, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x2, [], 0x0, [0x8, 0x4], [0x0, 0x8]}}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x18, 0x2, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x5}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xcb2}]}]}]}}]}, 0xac}}, 0x0)
program crashed: INFO: task hung in del_device_store
single: successfully extracted reproducer
found reproducer with 4 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$ifreq_SIOCGIFINDEX_team-socket$netlink
detailed listing:
executing program 0:
r0 = socket(0x11, 0x800000003, 0x0)
ioctl$ifreq_SIOCGIFINDEX_team(r0, 0x8933, &(0x7f0000000600))
socket$netlink(0x10, 0x3, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$ifreq_SIOCGIFINDEX_team-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x11, 0x800000003, 0x0)
ioctl$ifreq_SIOCGIFINDEX_team(r0, 0x8933, &(0x7f0000000600)={'team0\x00', <r1=>0x0})
sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000400)=@newqdisc={0xac, 0x24, 0xf0b, 0x0, 0x0, {0x0, 0x0, 0x12, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x7c, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x2, [], 0x0, [0x8, 0x4], [0x0, 0x8]}}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x18, 0x2, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x5}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xcb2}]}]}]}}]}, 0xac}}, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-socket$netlink-sendmsg$nl_route_sched
detailed listing:
executing program 0:
socket(0x11, 0x800000003, 0x0)
r0 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000400)=@newqdisc={0xac, 0x24, 0xf0b, 0x0, 0x0, {0x0, 0x0, 0x12, 0x0, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x7c, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x2, [], 0x0, [0x8, 0x4], [0x0, 0x8]}}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x18, 0x2, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x5}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xcb2}]}]}]}}]}, 0xac}}, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$ifreq_SIOCGIFINDEX_team-socket$netlink-sendmsg$nl_route_sched
detailed listing:
executing program 0:
ioctl$ifreq_SIOCGIFINDEX_team(0xffffffffffffffff, 0x8933, &(0x7f0000000600)={'team0\x00', <r0=>0x0})
r1 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000400)=@newqdisc={0xac, 0x24, 0xf0b, 0x0, 0x0, {0x0, 0x0, 0x12, r0, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x7c, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x2, [], 0x0, [0x8, 0x4], [0x0, 0x8]}}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x18, 0x2, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x5}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xcb2}]}]}]}}]}, 0xac}}, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$ifreq_SIOCGIFINDEX_team-socket$netlink-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x11, 0x800000003, 0x0)
ioctl$ifreq_SIOCGIFINDEX_team(r0, 0x8933, 0x0)
r1 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000400)=@newqdisc={0xac, 0x24, 0xf0b, 0x0, 0x0, {0x0, 0x0, 0x12, 0x0, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x7c, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x2, [], 0x0, [0x8, 0x4], [0x0, 0x8]}}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x18, 0x2, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x5}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xcb2}]}]}]}}]}, 0xac}}, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$ifreq_SIOCGIFINDEX_team-socket$netlink-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x11, 0x800000003, 0x0)
ioctl$ifreq_SIOCGIFINDEX_team(r0, 0x8933, &(0x7f0000000600))
r1 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r1, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$ifreq_SIOCGIFINDEX_team-socket$netlink-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x11, 0x800000003, 0x0)
ioctl$ifreq_SIOCGIFINDEX_team(r0, 0x8933, &(0x7f0000000600))
r1 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000007c0)={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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$ifreq_SIOCGIFINDEX_team-socket$netlink-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x11, 0x800000003, 0x0)
ioctl$ifreq_SIOCGIFINDEX_team(r0, 0x8933, &(0x7f0000000600))
r1 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$ifreq_SIOCGIFINDEX_team-socket$netlink-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x11, 0x800000003, 0x0)
ioctl$ifreq_SIOCGIFINDEX_team(r0, 0x8933, &(0x7f0000000600)={'team0\x00', <r1=>0x0})
r2 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r2, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000400)=@newqdisc={0x34, 0x24, 0xf0b, 0x0, 0x0, {0x0, 0x0, 0x12, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x4}}]}, 0x34}}, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$ifreq_SIOCGIFINDEX_team-socket$netlink-sendmsg$nl_route_sched
program crashed: BUG: soft lockup in do_idle
a never seen crash title: BUG: soft lockup in do_idle, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$ifreq_SIOCGIFINDEX_team-socket$netlink-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x11, 0x800000003, 0x0)
ioctl$ifreq_SIOCGIFINDEX_team(r0, 0x8933, &(0x7f0000000600)={'team0\x00', <r1=>0x0})
r2 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r2, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000400)=@newqdisc={0xac, 0x24, 0xf0b, 0x0, 0x0, {0x0, 0x0, 0x12, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x7c, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x2, [], 0x0, [0x8, 0x4], [0x0, 0x8]}}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x18, 0x2, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x5}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xcb2}]}]}]}}]}, 0xac}}, 0x0)
program crashed: BUG: soft lockup in smp_call_function
a never seen crash title: BUG: soft lockup in smp_call_function, ignore
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$ifreq_SIOCGIFINDEX_team-socket$netlink-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x11, 0x800000003, 0x0)
ioctl$ifreq_SIOCGIFINDEX_team(r0, 0x8933, &(0x7f0000000600)={'team0\x00', <r1=>0x0})
r2 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r2, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000400)=@newqdisc={0xac, 0x24, 0xf0b, 0x0, 0x0, {0x0, 0x0, 0x12, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x7c, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x2, [], 0x0, [0x8, 0x4], [0x0, 0x8]}}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x18, 0x2, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x5}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xcb2}]}]}]}}]}, 0xac}}, 0x0)
program did not crash
reproducing took 1h11m49.847568178s
repro crashed as (corrupted=false):
INFO: task syz-executor:6574 blocked for more than 143 seconds.
Not tainted 6.14.0-rc6-syzkaller-ga5618886fdab #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:0 pid:6574 tgid:6574 ppid:1 task_flags:0x400140 flags:0x00000001
Call trace:
__switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T)
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x1360/0x257c kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xbc/0x238 kernel/sched/core.c:6857
schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6914
__mutex_lock_common+0xd30/0x24b8 kernel/locking/mutex.c:662
__mutex_lock kernel/locking/mutex.c:730 [inline]
mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:782
del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216
bus_attr_store+0x80/0xa4 drivers/base/bus.c:172
sysfs_kf_write+0x200/0x280 fs/sysfs/file.c:139
kernfs_fop_write_iter+0x334/0x48c fs/kernfs/file.c:334
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0x704/0xa9c fs/read_write.c:679
ksys_write+0x15c/0x26c fs/read_write.c:731
__do_sys_write fs/read_write.c:742 [inline]
__se_sys_write fs/read_write.c:739 [inline]
__arm64_sys_write+0x7c/0x90 fs/read_write.c:739
__invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Showing all locks held in the system:
3 locks held by kworker/u8:0/12:
#0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3212
#1: ffff800097d47ba0 ((crda_timeout).work){+.+.}-{0:0}, at: process_one_work+0x708/0x1638 kernel/workqueue.c:3212
#2: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
1 lock held by khungtaskd/32:
#0: ffff80008fda2620 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:336
4 locks held by kworker/u8:3/45:
#0: ffff0000c187a148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3212
#1: ffff8000993c7ba0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x708/0x1638 kernel/workqueue.c:3212
#2: ffff800092b65fd0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x148/0xa48 net/core/net_namespace.c:606
#3: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
3 locks held by kworker/u8:4/175:
#0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3212
#1: ffff80009be77ba0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x708/0x1638 kernel/workqueue.c:3212
#2: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
3 locks held by kworker/u8:8/2155:
#0: ffff0000d1d00148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3212
#1: ffff8000a1b17ba0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x708/0x1638 kernel/workqueue.c:3212
#2: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
3 locks held by kworker/u8:9/5415:
#0: ffff0000c0031148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3212
#1: ffff80009bb97ba0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x708/0x1638 kernel/workqueue.c:3212
#2: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
2 locks held by dhcpcd/6113:
#0: ffff0000ea4426c8 (nlk_cb_mutex-ROUTE){+.+.}-{4:4}, at: netlink_dump+0xc0/0xbc0 net/netlink/af_netlink.c:2254
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dumpit+0x8c/0x1d0 net/core/rtnetlink.c:6780
2 locks held by getty/6205:
#0: ffff0000d24260a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
#1: ffff80009bcae2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211
4 locks held by syz-executor/6574:
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:3035 [inline]
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x248/0xa9c fs/read_write.c:675
#1: ffff0000dc026c88 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325
#2: ffff0000cc220968 (kn->active#50){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326
#3: ffff800091cb7b68 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/6576:
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:3035 [inline]
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x248/0xa9c fs/read_write.c:675
#1: ffff0000c2e26888 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325
#2: ffff0000cc220968 (kn->active#50){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326
#3: ffff800091cb7b68 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216
7 locks held by syz-executor/6578:
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:3035 [inline]
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x248/0xa9c fs/read_write.c:675
#1: ffff0000dc024888 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325
#2: ffff0000cc220968 (kn->active#50){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326
#3: ffff800091cb7b68 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216
#4: ffff0000c27360e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1030 [inline]
#4: ffff0000c27360e8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
#4: ffff0000c27360e8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xbc/0x698 drivers/base/dd.c:1293
#5: ffff0000c83cc250 (&devlink->lock_key){+.+.}-{4:4}, at: devl_lock+0x24/0x34 net/devlink/core.c:276
#6: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
4 locks held by syz-executor/6637:
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:3035 [inline]
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x248/0xa9c fs/read_write.c:675
#1: ffff0000cc519088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325
#2: ffff0000cc220968 (kn->active#50){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326
#3: ffff800091cb7b68 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/6650:
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:3035 [inline]
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x248/0xa9c fs/read_write.c:675
#1: ffff0000cf1e3c88 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325
#2: ffff0000cc220968 (kn->active#50){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326
#3: ffff800091cb7b68 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216
1 lock held by syz-executor/6678:
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:335 [inline]
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xaf8/0x1844 net/core/rtnetlink.c:4021
2 locks held by syz-executor/6682:
#0: ffff800091aaace0 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:163
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:335 [inline]
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xaf8/0x1844 net/core/rtnetlink.c:4021
1 lock held by syz-executor/6684:
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:335 [inline]
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xaf8/0x1844 net/core/rtnetlink.c:4021
2 locks held by syz-executor/6690:
#0: ffff800091aaace0 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:163
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:335 [inline]
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xaf8/0x1844 net/core/rtnetlink.c:4021
1 lock held by syz-executor/6755:
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
1 lock held by syz-executor/6762:
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
1 lock held by syz-executor/6765:
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
1 lock held by syz-executor/6771:
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
1 lock held by syz-executor/6780:
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
=============================================
final repro crashed as (corrupted=false):
INFO: task syz-executor:6574 blocked for more than 143 seconds.
Not tainted 6.14.0-rc6-syzkaller-ga5618886fdab #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:0 pid:6574 tgid:6574 ppid:1 task_flags:0x400140 flags:0x00000001
Call trace:
__switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T)
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x1360/0x257c kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xbc/0x238 kernel/sched/core.c:6857
schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6914
__mutex_lock_common+0xd30/0x24b8 kernel/locking/mutex.c:662
__mutex_lock kernel/locking/mutex.c:730 [inline]
mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:782
del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216
bus_attr_store+0x80/0xa4 drivers/base/bus.c:172
sysfs_kf_write+0x200/0x280 fs/sysfs/file.c:139
kernfs_fop_write_iter+0x334/0x48c fs/kernfs/file.c:334
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0x704/0xa9c fs/read_write.c:679
ksys_write+0x15c/0x26c fs/read_write.c:731
__do_sys_write fs/read_write.c:742 [inline]
__se_sys_write fs/read_write.c:739 [inline]
__arm64_sys_write+0x7c/0x90 fs/read_write.c:739
__invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Showing all locks held in the system:
3 locks held by kworker/u8:0/12:
#0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3212
#1: ffff800097d47ba0 ((crda_timeout).work){+.+.}-{0:0}, at: process_one_work+0x708/0x1638 kernel/workqueue.c:3212
#2: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
1 lock held by khungtaskd/32:
#0: ffff80008fda2620 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:336
4 locks held by kworker/u8:3/45:
#0: ffff0000c187a148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3212
#1: ffff8000993c7ba0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x708/0x1638 kernel/workqueue.c:3212
#2: ffff800092b65fd0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x148/0xa48 net/core/net_namespace.c:606
#3: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
3 locks held by kworker/u8:4/175:
#0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3212
#1: ffff80009be77ba0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x708/0x1638 kernel/workqueue.c:3212
#2: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
3 locks held by kworker/u8:8/2155:
#0: ffff0000d1d00148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3212
#1: ffff8000a1b17ba0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x708/0x1638 kernel/workqueue.c:3212
#2: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
3 locks held by kworker/u8:9/5415:
#0: ffff0000c0031148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3212
#1: ffff80009bb97ba0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x708/0x1638 kernel/workqueue.c:3212
#2: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
2 locks held by dhcpcd/6113:
#0: ffff0000ea4426c8 (nlk_cb_mutex-ROUTE){+.+.}-{4:4}, at: netlink_dump+0xc0/0xbc0 net/netlink/af_netlink.c:2254
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dumpit+0x8c/0x1d0 net/core/rtnetlink.c:6780
2 locks held by getty/6205:
#0: ffff0000d24260a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
#1: ffff80009bcae2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211
4 locks held by syz-executor/6574:
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:3035 [inline]
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x248/0xa9c fs/read_write.c:675
#1: ffff0000dc026c88 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325
#2: ffff0000cc220968 (kn->active#50){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326
#3: ffff800091cb7b68 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/6576:
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:3035 [inline]
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x248/0xa9c fs/read_write.c:675
#1: ffff0000c2e26888 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325
#2: ffff0000cc220968 (kn->active#50){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326
#3: ffff800091cb7b68 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216
7 locks held by syz-executor/6578:
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:3035 [inline]
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x248/0xa9c fs/read_write.c:675
#1: ffff0000dc024888 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325
#2: ffff0000cc220968 (kn->active#50){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326
#3: ffff800091cb7b68 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216
#4: ffff0000c27360e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1030 [inline]
#4: ffff0000c27360e8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
#4: ffff0000c27360e8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xbc/0x698 drivers/base/dd.c:1293
#5: ffff0000c83cc250 (&devlink->lock_key){+.+.}-{4:4}, at: devl_lock+0x24/0x34 net/devlink/core.c:276
#6: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
4 locks held by syz-executor/6637:
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:3035 [inline]
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x248/0xa9c fs/read_write.c:675
#1: ffff0000cc519088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325
#2: ffff0000cc220968 (kn->active#50){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326
#3: ffff800091cb7b68 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/6650:
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:3035 [inline]
#0: ffff0000d8544420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x248/0xa9c fs/read_write.c:675
#1: ffff0000cf1e3c88 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325
#2: ffff0000cc220968 (kn->active#50){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326
#3: ffff800091cb7b68 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216
1 lock held by syz-executor/6678:
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:335 [inline]
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xaf8/0x1844 net/core/rtnetlink.c:4021
2 locks held by syz-executor/6682:
#0: ffff800091aaace0 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:163
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:335 [inline]
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xaf8/0x1844 net/core/rtnetlink.c:4021
1 lock held by syz-executor/6684:
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:335 [inline]
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xaf8/0x1844 net/core/rtnetlink.c:4021
2 locks held by syz-executor/6690:
#0: ffff800091aaace0 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:163
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:335 [inline]
#1: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xaf8/0x1844 net/core/rtnetlink.c:4021
1 lock held by syz-executor/6755:
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
1 lock held by syz-executor/6762:
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
1 lock held by syz-executor/6765:
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
1 lock held by syz-executor/6771:
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
1 lock held by syz-executor/6780:
#0: ffff800092b72768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
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