Extracting prog: 5m16.752107295s
Minimizing prog: 42m30.154470203s
Simplifying prog options: 9m46.089675241s
Extracting C: 4m5.124926124s
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:6 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}}): perf_event_open-perf_event_open-bpf$MAP_CREATE-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x52, 0x1, 0x0, 0x0, 0x0, 0x4, 0x4460, 0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000001, 0x0, @perf_config_ext={0x3, 0x8001}, 0x101000, 0x2d, 0xfffffbff, 0x3, 0x2, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9)
perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000280)=@base={0x7, 0x4, 0x80, 0x4, 0x28}, 0x50)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000680)={0x11, 0x8, &(0x7f0000000080)=@framed={{}, [@tail_call={{0x18, 0x2, 0x1, 0x0, r0}, {}, {0x85, 0x0, 0x0, 0x1b}}]}, &(0x7f0000000780)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback=0x2d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000f40)={&(0x7f0000000f00)='kfree\x00', r1}, 0x18)

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:6 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}}): perf_event_open-perf_event_open-bpf$MAP_CREATE-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x52, 0x1, 0x0, 0x0, 0x0, 0x4, 0x4460, 0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000001, 0x0, @perf_config_ext={0x3, 0x8001}, 0x101000, 0x2d, 0xfffffbff, 0x3, 0x2, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9)
perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000280)=@base={0x7, 0x4, 0x80, 0x4, 0x28}, 0x50)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000680)={0x11, 0x8, &(0x7f0000000080)=@framed={{}, [@tail_call={{0x18, 0x2, 0x1, 0x0, r0}, {}, {0x85, 0x0, 0x0, 0x1b}}]}, &(0x7f0000000780)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback=0x2d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000f40)={&(0x7f0000000f00)='kfree\x00', r1}, 0x18)

program crashed: INFO: rcu detected stall in security_file_open
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): perf_event_open-perf_event_open-bpf$MAP_CREATE-bpf$PROG_LOAD
detailed listing:
executing program 0:
perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x52, 0x1, 0x0, 0x0, 0x0, 0x4, 0x4460, 0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000001, 0x0, @perf_config_ext={0x3, 0x8001}, 0x101000, 0x2d, 0xfffffbff, 0x3, 0x2, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9)
perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000280)=@base={0x7, 0x4, 0x80, 0x4, 0x28}, 0x50)
bpf$PROG_LOAD(0x5, &(0x7f0000000680)={0x11, 0x8, &(0x7f0000000080)=@framed={{}, [@tail_call={{0x18, 0x2, 0x1, 0x0, r0}, {}, {0x85, 0x0, 0x0, 0x1b}}]}, &(0x7f0000000780)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback=0x2d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)

program crashed: BUG: soft lockup in addrconf_rs_timer
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): perf_event_open-perf_event_open-bpf$MAP_CREATE
detailed listing:
executing program 0:
perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x52, 0x1, 0x0, 0x0, 0x0, 0x4, 0x4460, 0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000001, 0x0, @perf_config_ext={0x3, 0x8001}, 0x101000, 0x2d, 0xfffffbff, 0x3, 0x2, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9)
perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
bpf$MAP_CREATE(0x0, &(0x7f0000000280)=@base={0x7, 0x4, 0x80, 0x4, 0x28}, 0x50)

program crashed: BUG: soft lockup in addrconf_rs_timer
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): perf_event_open-perf_event_open
detailed listing:
executing program 0:
perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x52, 0x1, 0x0, 0x0, 0x0, 0x4, 0x4460, 0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000001, 0x0, @perf_config_ext={0x3, 0x8001}, 0x101000, 0x2d, 0xfffffbff, 0x3, 0x2, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9)
perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): perf_event_open-bpf$MAP_CREATE
detailed listing:
executing program 0:
perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x52, 0x1, 0x0, 0x0, 0x0, 0x4, 0x4460, 0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000001, 0x0, @perf_config_ext={0x3, 0x8001}, 0x101000, 0x2d, 0xfffffbff, 0x3, 0x2, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9)
bpf$MAP_CREATE(0x0, &(0x7f0000000280)=@base={0x7, 0x4, 0x80, 0x4, 0x28}, 0x50)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): perf_event_open-bpf$MAP_CREATE
detailed listing:
executing program 0:
perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
bpf$MAP_CREATE(0x0, &(0x7f0000000280)=@base={0x7, 0x4, 0x80, 0x4, 0x28}, 0x50)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): perf_event_open-perf_event_open-bpf$MAP_CREATE
detailed listing:
executing program 0:
perf_event_open(0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9)
perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
bpf$MAP_CREATE(0x0, &(0x7f0000000280)=@base={0x7, 0x4, 0x80, 0x4, 0x28}, 0x50)

program crashed: lost connection to test machine
ignore low priority crash: lost connection to test machine
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): perf_event_open-perf_event_open-bpf$MAP_CREATE
detailed listing:
executing program 0:
perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x52, 0x1, 0x0, 0x0, 0x0, 0x4, 0x4460, 0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000001, 0x0, @perf_config_ext={0x3, 0x8001}, 0x101000, 0x2d, 0xfffffbff, 0x3, 0x2, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9)
perf_event_open(0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
bpf$MAP_CREATE(0x0, &(0x7f0000000280)=@base={0x7, 0x4, 0x80, 0x4, 0x28}, 0x50)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): perf_event_open-perf_event_open-bpf$MAP_CREATE
detailed listing:
executing program 0:
perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x52, 0x1, 0x0, 0x0, 0x0, 0x4, 0x4460, 0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000001, 0x0, @perf_config_ext={0x3, 0x8001}, 0x101000, 0x2d, 0xfffffbff, 0x3, 0x2, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9)
perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0)

program crashed: INFO: rcu detected stall in rtnl_newlink
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): perf_event_open-perf_event_open-bpf$MAP_CREATE
program crashed: WARNING in rcu_check_gp_start_stall
a never seen crash title: WARNING in rcu_check_gp_start_stall, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): perf_event_open-perf_event_open-bpf$MAP_CREATE
detailed listing:
executing program 0:
perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x52, 0x1, 0x0, 0x0, 0x0, 0x4, 0x4460, 0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000001, 0x0, @perf_config_ext={0x3, 0x8001}, 0x101000, 0x2d, 0xfffffbff, 0x3, 0x2, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9)
perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0)

program crashed: INFO: rcu detected stall in x64_sys_call
a never seen crash title: INFO: rcu detected stall in x64_sys_call, 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}}): perf_event_open-perf_event_open-bpf$MAP_CREATE
detailed listing:
executing program 0:
perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x52, 0x1, 0x0, 0x0, 0x0, 0x4, 0x4460, 0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000001, 0x0, @perf_config_ext={0x3, 0x8001}, 0x101000, 0x2d, 0xfffffbff, 0x3, 0x2, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9)
perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0)

program crashed: WARNING in rcu_check_gp_start_stall
a never seen crash title: WARNING in rcu_check_gp_start_stall, ignore
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): perf_event_open-perf_event_open-bpf$MAP_CREATE
detailed listing:
executing program 0:
perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x52, 0x1, 0x0, 0x0, 0x0, 0x4, 0x4460, 0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000001, 0x0, @perf_config_ext={0x3, 0x8001}, 0x101000, 0x2d, 0xfffffbff, 0x3, 0x2, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9)
perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0)

program crashed: INFO: rcu detected stall in filemap_fault
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): perf_event_open-perf_event_open-bpf$MAP_CREATE
detailed listing:
executing program 0:
perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x52, 0x1, 0x0, 0x0, 0x0, 0x4, 0x4460, 0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000001, 0x0, @perf_config_ext={0x3, 0x8001}, 0x101000, 0x2d, 0xfffffbff, 0x3, 0x2, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9)
perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0)

program crashed: lost connection to test machine
ignore low priority crash: lost connection to test machine
validation run: crashed=false
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): perf_event_open-perf_event_open-bpf$MAP_CREATE
detailed listing:
executing program 0:
perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x52, 0x1, 0x0, 0x0, 0x0, 0x4, 0x4460, 0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000001, 0x0, @perf_config_ext={0x3, 0x8001}, 0x101000, 0x2d, 0xfffffbff, 0x3, 0x2, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9)
perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0)

program crashed: INFO: rcu detected stall in smp_call_function
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): perf_event_open-perf_event_open-bpf$MAP_CREATE
detailed listing:
executing program 0:
perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x52, 0x1, 0x0, 0x0, 0x0, 0x4, 0x4460, 0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000001, 0x0, @perf_config_ext={0x3, 0x8001}, 0x101000, 0x2d, 0xfffffbff, 0x3, 0x2, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9)
perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0)

program crashed: BUG: soft lockup in addrconf_rs_timer
validation run: crashed=true
reproducing took 1h16m32.080451024s
repro crashed as (corrupted=false):
watchdog: BUG: soft lockup - CPU#0 stuck for 136s! [syz.2.19:5745]
Modules linked in:
irq event stamp: 9145485
hardirqs last  enabled at (9145484): [<ffffffff8bb6ce38>] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline]
hardirqs last  enabled at (9145484): [<ffffffff8bb6ce38>] irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:542 [inline]
hardirqs last  enabled at (9145484): [<ffffffff8bb6ce38>] irqentry_exit+0x218/0x8f0 kernel/entry/common.c:167
hardirqs last disabled at (9145485): [<ffffffff8bb6bbce>] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1062
softirqs last  enabled at (3562948): [<ffffffff8187eb4a>] __do_softirq kernel/softirq.c:656 [inline]
softirqs last  enabled at (3562948): [<ffffffff8187eb4a>] invoke_softirq kernel/softirq.c:496 [inline]
softirqs last  enabled at (3562948): [<ffffffff8187eb4a>] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
softirqs last disabled at (3562951): [<ffffffff8187eb4a>] __do_softirq kernel/softirq.c:656 [inline]
softirqs last disabled at (3562951): [<ffffffff8187eb4a>] invoke_softirq kernel/softirq.c:496 [inline]
softirqs last disabled at (3562951): [<ffffffff8187eb4a>] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
CPU: 0 UID: 0 PID: 5745 Comm: syz.2.19 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__read_once_word_nocheck+0x3/0x10 include/asm-generic/rwonce.h:67
Code: 93 7e be 00 e9 1e fd ff ff 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 07 <c3> cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0000:ffffc90000006d38 EFLAGS: 00000282
RAX: 00007fa94df9ce59 RBX: 1ffff92000000dbe RCX: 1ffff92000000d01
RDX: ffffffff90bf85fe RSI: 0000000000000003 RDI: ffffc90002e2ffc8
RBP: 1ffffffff217f0bf R08: ffffc90002e2ff48 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e959c20 R12: 1ffff92000000dbf
R13: ffffc90002e30000 R14: ffffc90000006de8 R15: ffffc90002e28000
FS:  00007fa94d5fe6c0(0000) GS:ffff88808c815000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00003514112f4600 CR3: 0000000053bca000 CR4: 0000000000352ef0
Call Trace:
 <IRQ>
 deref_stack_regs arch/x86/kernel/unwind_orc.c:437 [inline]
 unwind_next_frame+0xe8d/0x2550 arch/x86/kernel/unwind_orc.c:625
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2705 [inline]
 slab_free mm/slub.c:6405 [inline]
 kmem_cache_free+0x182/0x650 mm/slub.c:6532
 kfree_skb_reason include/linux/skbuff.h:1323 [inline]
 kfree_skb include/linux/skbuff.h:1332 [inline]
 ip6gre_tunnel_xmit+0xb5a/0xf50 net/ipv6/ip6_gre.c:913
 __netdev_start_xmit include/linux/netdevice.h:5400 [inline]
 netdev_start_xmit include/linux/netdevice.h:5409 [inline]
 xmit_one net/core/dev.c:3889 [inline]
 dev_hard_start_xmit+0x2cd/0x830 net/core/dev.c:3905
 sch_direct_xmit+0x257/0x4c0 net/sched/sch_generic.c:372
 __dev_xmit_skb net/core/dev.c:4211 [inline]
 __dev_queue_xmit+0x1754/0x37f0 net/core/dev.c:4833
 __ip6_finish_output net/ipv6/ip6_output.c:-1 [inline]
 ip6_finish_output+0x292/0x770 net/ipv6/ip6_output.c:219
 NF_HOOK_COND include/linux/netfilter.h:307 [inline]
 ip6_output+0x337/0x540 net/ipv6/ip6_output.c:246
 dst_output include/net/dst.h:471 [inline]
 NF_HOOK include/linux/netfilter.h:318 [inline]
 ndisc_send_skb+0xcb2/0x1650 net/ipv6/ndisc.c:512
 addrconf_rs_timer+0x2d2/0x6c0 net/ipv6/addrconf.c:4072
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405
 handle_softirqs+0x225/0x840 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:task_dead_fair+0x8d/0x450 kernel/sched/fair.c:9646
Code: f3 48 89 4c 24 10 4a 89 04 29 4c 8d a7 d9 00 00 00 4d 89 e6 49 c1 ee 03 43 0f b6 04 2e 84 c0 0f 85 da 02 00 00 41 80 3c 24 00 <0f> 84 16 01 00 00 4c 8d 7c 24 40 48 8b 44 24 10 66 42 c7 44 28 04
RSP: 0000:ffffc90002e2f700 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff8880007e8000 RCX: 1ffff920005c5ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8880007e8000
RBP: ffffc90002e2f7b0 R08: ffff88801f798cc3 R09: 1ffff11003ef3198
R10: dffffc0000000000 R11: ffffffff81989b40 R12: ffff8880007e80d9
R13: dffffc0000000000 R14: 1ffff110000fd01b R15: ffffffff8e29ab80
 finish_task_switch+0x6fa/0xc60 kernel/sched/core.c:5397
 context_switch kernel/sched/core.c:5513 [inline]
 __schedule+0x17e1/0x56c0 kernel/sched/core.c:7234
 preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:7413
 preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
 smp_call_function_single+0x46e/0x5a0 kernel/smp.c:704
 task_function_call kernel/events/core.c:124 [inline]
 perf_install_in_context+0x5bd/0x900 kernel/events/core.c:3203
 __do_sys_perf_event_open kernel/events/core.c:14239 [inline]
 __se_sys_perf_event_open+0x1906/0x1d40 kernel/events/core.c:13881
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa94df9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa94d5fe028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fa94e216090 RCX: 00007fa94df9ce59
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000003c0
RBP: 00007fa94e032e6f R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa94e216128 R14: 00007fa94e216090 R15: 00007ffefe1634d8
 </TASK>

final repro crashed as (corrupted=false):
watchdog: BUG: soft lockup - CPU#0 stuck for 136s! [syz.2.19:5745]
Modules linked in:
irq event stamp: 9145485
hardirqs last  enabled at (9145484): [<ffffffff8bb6ce38>] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline]
hardirqs last  enabled at (9145484): [<ffffffff8bb6ce38>] irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:542 [inline]
hardirqs last  enabled at (9145484): [<ffffffff8bb6ce38>] irqentry_exit+0x218/0x8f0 kernel/entry/common.c:167
hardirqs last disabled at (9145485): [<ffffffff8bb6bbce>] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1062
softirqs last  enabled at (3562948): [<ffffffff8187eb4a>] __do_softirq kernel/softirq.c:656 [inline]
softirqs last  enabled at (3562948): [<ffffffff8187eb4a>] invoke_softirq kernel/softirq.c:496 [inline]
softirqs last  enabled at (3562948): [<ffffffff8187eb4a>] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
softirqs last disabled at (3562951): [<ffffffff8187eb4a>] __do_softirq kernel/softirq.c:656 [inline]
softirqs last disabled at (3562951): [<ffffffff8187eb4a>] invoke_softirq kernel/softirq.c:496 [inline]
softirqs last disabled at (3562951): [<ffffffff8187eb4a>] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
CPU: 0 UID: 0 PID: 5745 Comm: syz.2.19 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__read_once_word_nocheck+0x3/0x10 include/asm-generic/rwonce.h:67
Code: 93 7e be 00 e9 1e fd ff ff 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 07 <c3> cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0000:ffffc90000006d38 EFLAGS: 00000282
RAX: 00007fa94df9ce59 RBX: 1ffff92000000dbe RCX: 1ffff92000000d01
RDX: ffffffff90bf85fe RSI: 0000000000000003 RDI: ffffc90002e2ffc8
RBP: 1ffffffff217f0bf R08: ffffc90002e2ff48 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e959c20 R12: 1ffff92000000dbf
R13: ffffc90002e30000 R14: ffffc90000006de8 R15: ffffc90002e28000
FS:  00007fa94d5fe6c0(0000) GS:ffff88808c815000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00003514112f4600 CR3: 0000000053bca000 CR4: 0000000000352ef0
Call Trace:
 <IRQ>
 deref_stack_regs arch/x86/kernel/unwind_orc.c:437 [inline]
 unwind_next_frame+0xe8d/0x2550 arch/x86/kernel/unwind_orc.c:625
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2705 [inline]
 slab_free mm/slub.c:6405 [inline]
 kmem_cache_free+0x182/0x650 mm/slub.c:6532
 kfree_skb_reason include/linux/skbuff.h:1323 [inline]
 kfree_skb include/linux/skbuff.h:1332 [inline]
 ip6gre_tunnel_xmit+0xb5a/0xf50 net/ipv6/ip6_gre.c:913
 __netdev_start_xmit include/linux/netdevice.h:5400 [inline]
 netdev_start_xmit include/linux/netdevice.h:5409 [inline]
 xmit_one net/core/dev.c:3889 [inline]
 dev_hard_start_xmit+0x2cd/0x830 net/core/dev.c:3905
 sch_direct_xmit+0x257/0x4c0 net/sched/sch_generic.c:372
 __dev_xmit_skb net/core/dev.c:4211 [inline]
 __dev_queue_xmit+0x1754/0x37f0 net/core/dev.c:4833
 __ip6_finish_output net/ipv6/ip6_output.c:-1 [inline]
 ip6_finish_output+0x292/0x770 net/ipv6/ip6_output.c:219
 NF_HOOK_COND include/linux/netfilter.h:307 [inline]
 ip6_output+0x337/0x540 net/ipv6/ip6_output.c:246
 dst_output include/net/dst.h:471 [inline]
 NF_HOOK include/linux/netfilter.h:318 [inline]
 ndisc_send_skb+0xcb2/0x1650 net/ipv6/ndisc.c:512
 addrconf_rs_timer+0x2d2/0x6c0 net/ipv6/addrconf.c:4072
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405
 handle_softirqs+0x225/0x840 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:task_dead_fair+0x8d/0x450 kernel/sched/fair.c:9646
Code: f3 48 89 4c 24 10 4a 89 04 29 4c 8d a7 d9 00 00 00 4d 89 e6 49 c1 ee 03 43 0f b6 04 2e 84 c0 0f 85 da 02 00 00 41 80 3c 24 00 <0f> 84 16 01 00 00 4c 8d 7c 24 40 48 8b 44 24 10 66 42 c7 44 28 04
RSP: 0000:ffffc90002e2f700 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff8880007e8000 RCX: 1ffff920005c5ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8880007e8000
RBP: ffffc90002e2f7b0 R08: ffff88801f798cc3 R09: 1ffff11003ef3198
R10: dffffc0000000000 R11: ffffffff81989b40 R12: ffff8880007e80d9
R13: dffffc0000000000 R14: 1ffff110000fd01b R15: ffffffff8e29ab80
 finish_task_switch+0x6fa/0xc60 kernel/sched/core.c:5397
 context_switch kernel/sched/core.c:5513 [inline]
 __schedule+0x17e1/0x56c0 kernel/sched/core.c:7234
 preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:7413
 preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
 smp_call_function_single+0x46e/0x5a0 kernel/smp.c:704
 task_function_call kernel/events/core.c:124 [inline]
 perf_install_in_context+0x5bd/0x900 kernel/events/core.c:3203
 __do_sys_perf_event_open kernel/events/core.c:14239 [inline]
 __se_sys_perf_event_open+0x1906/0x1d40 kernel/events/core.c:13881
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa94df9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa94d5fe028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fa94e216090 RCX: 00007fa94df9ce59
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000003c0
RBP: 00007fa94e032e6f R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa94e216128 R14: 00007fa94e216090 R15: 00007ffefe1634d8
 </TASK>