Extracting prog: 27m31.374907656s
Minimizing prog: 1h1m34.691297184s
Simplifying prog options: 8m48.698215649s
Extracting C: 2m47.416040274s
Simplifying C: 0s


extracting reproducer from 39 programs
testing a last program of every proc
single: executing 10 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}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_USER_MEMORY_REGION2-openat$kvm-ioctl$KVM_CREATE_VM-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-mmap$KVM_VCPU-ioctl$KVM_SET_USER_MEMORY_REGION
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000140)={0x3, 0x2, 0xfec00000, 0x1000, &(0x7f0000f40000/0x1000)=nil})
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f00000000c0)={0x2, 0x2, 0x0, 0x2000, &(0x7f0000f8b000/0x2000)=nil})
ioctl$KVM_SET_USER_MEMORY_REGION2(r1, 0x40a0ae49, &(0x7f0000000280)={0x5, 0x0, 0x7000, 0x2000, &(0x7f0000d6c000/0x2000)=nil, 0x7})
r2 = openat$kvm(0xffffffffffffff9c, &(0x7f00000004c0), 0x80, 0x0)
r3 = ioctl$KVM_CREATE_VM(r2, 0xae01, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe6000/0x18000)=nil, &(0x7f0000000740)=[@text16={0x10, 0x0}], 0x1, 0x6, 0x0, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000080)={0x0, 0x1, 0xcccc0000, 0x2000, &(0x7f0000c7d000/0x2000)=nil})
r4 = ioctl$KVM_CREATE_VCPU(r3, 0xae41, 0x2)
mmap$KVM_VCPU(&(0x7f0000000000/0xa000)=nil, 0x930, 0x1000001, 0x11, r4, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000100)={0x10001, 0x0, 0x0, 0x1000, &(0x7f0000ffc000/0x1000)=nil})

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}}): pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd-write$P9_RVERSION-write$P9_RATTACH-write$P9_RGETATTR
detailed listing:
executing program 0:
pipe2$9p(&(0x7f0000000000)={0x0, <r0=>0x0}, 0x0)
pipe2$9p(&(0x7f0000000010)={0x0, 0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, 0x0)
write$P9_RVERSION(r0, &(0x7f0000000040)={0x15, 0x65, 0xffff, 0x2000, 0x8, '9P2000.L'}, 0x15)
write$P9_RATTACH(r0, &(0x7f0000000180)={0x14, 0x69, 0x0, {0x80}}, 0x14)
write$P9_RGETATTR(r0, &(0x7f00000002c0)={0xa0, 0x19, 0x0, {0x747225d06a83d825, {0x1}, 0x41ed, 0x0, 0x0, 0x3ff, 0x8, 0x1000, 0x1000, 0x8, 0x2, 0x3, 0xfffffffffffffc00, 0x0, 0x0, 0x2000000000, 0x5, 0x0, 0x10, 0xfffffffffffffffe}}, 0xa0)

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}}): getsockopt$inet_sctp_SCTP_GET_PEER_ADDR_INFO-syz_kvm_add_vcpu$x86-execveat-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-ioctl$KVM_RUN
detailed listing:
executing program 0:
getsockopt$inet_sctp_SCTP_GET_PEER_ADDR_INFO(0xffffffffffffffff, 0x84, 0xf, &(0x7f0000000280)={0x0, @in6={{0xa, 0x4e20, 0x7, @private1={0xfc, 0x1, '\x00', 0x1}, 0x3}}, 0xf8b, 0x8a23, 0x2, 0xf93a, 0x5}, &(0x7f0000000040)=0x98)
syz_kvm_add_vcpu$x86(0x0, &(0x7f0000000000)={0x0, &(0x7f0000000100)=[@code={0x1, 0x81, {"0f22e5c744240060420000c744240233d8cecbc7442406000000000f011c24668f38896810c4027958b20000000064449966baf80cb83284af80ef66bafc0c66ed66baf80cb8cc07ff8aef66bafc0cb8d4000000ef48b8f8000000000000000f23c00f2135030009000f23f8450f2244"}}], 0x81})
execveat(0xffffffffffffffff, &(0x7f0000000000)='\x00', 0x0, 0x0, 0x1000)
r0 = openat$kvm(0xffffff9c, &(0x7f00000000c0), 0x800, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil})
ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000200)={[0xc45, 0x9, 0xfffffffffffffffd, 0x0, 0x10000, 0x3, 0x4002004c2, 0x7ff, 0x9, 0x6, 0x400, 0x80, 0x89, 0x0, 0x3, 0x8d], 0x100000, 0x2c08c6})
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 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}}): openat-prctl$PR_SET_MM_MAP-sendmsg$NFT_BATCH-io_uring_setup-bpf$PROG_LOAD-bpf$MAP_CREATE-io_uring_enter
detailed listing:
executing program 0:
openat(0xffffffffffffff9c, 0x0, 0xc042, 0x1ff)
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f000068b000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffa000/0x3000)=nil, &(0x7f000068c000/0xc000)=nil, &(0x7f000068f000/0x4000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000692000/0x2000)=nil, 0x0}, 0x68)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0)
r0 = io_uring_setup(0x7, &(0x7f0000000040)={0x0, 0x15b1, 0xd081, 0x8, 0xc1})
bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x12, 0x3, 0x0, &(0x7f0000000240)='syzkaller\x00', 0x80000000, 0x2d, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x2e, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$MAP_CREATE(0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="16"], 0x50)
io_uring_enter(r0, 0x2219, 0x7721, 0x16, 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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(r0, &(0x7f0000000340)='*: ', 0x3)

program crashed: INFO: rcu detected stall in ieee80211_handle_queued_frames
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 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}}): mkdirat-mount-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000000340)='*: ', 0x3)

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}}): mkdirat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(r0, &(0x7f0000000340)='*: ', 0x3)

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}}): mount-openat-write
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(r0, &(0x7f0000000340)='*: ', 0x3)

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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(r0, &(0x7f0000000340)='*: ', 0x3)

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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(r0, &(0x7f0000000340)='*: ', 0x3)

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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(r0, &(0x7f0000000340)='*: ', 0x3)

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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f0000000340)='*: ', 0x3)

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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(r0, &(0x7f0000000340), 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}}): mkdirat-mount-openat-write
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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(r0, &(0x7f0000000340)='*: ', 0x3)

program crashed: INFO: rcu detected stall in corrupted
a never seen crash title: INFO: rcu detected stall in corrupted, 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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(r0, &(0x7f0000000340)='*: ', 0x3)

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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(r0, &(0x7f0000000340)='*: ', 0x3)

program crashed: INFO: rcu detected stall in corrupted
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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(r0, &(0x7f0000000340)='*: ', 0x3)

program crashed: INFO: rcu detected stall in corrupted
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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(r0, &(0x7f0000000340)='*: ', 0x3)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
reproducing took 1h50m9.474937178s
repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5753/2:b..l P30/5:b..l P5713/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=17181, q=2924 ncpus=2)
task:kworker/u8:16   state:D stack:22608 pid:5713  tgid:5713  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: bat_events batadv_tt_purge
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5510 [inline]
 __schedule+0x16dc/0x5500 kernel/sched/core.c:7234
 __schedule_loop kernel/sched/core.c:7311 [inline]
 schedule_rtlock+0x30/0x70 kernel/sched/core.c:7390
 rtlock_slowlock_locked+0x35c5/0x3c20 kernel/locking/rtmutex.c:1895
 rtlock_slowlock kernel/locking/rtmutex.c:1922 [inline]
 rtlock_lock kernel/locking/spinlock_rt.c:43 [inline]
 __rt_spin_lock kernel/locking/spinlock_rt.c:49 [inline]
 rt_spin_lock+0x165/0x400 kernel/locking/spinlock_rt.c:57
 spin_lock include/linux/spinlock_rt.h:45 [inline]
 tasklet_lock_callback kernel/softirq.c:877 [inline]
 tasklet_action_common+0xc5/0x600 kernel/softirq.c:927
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 __local_bh_enable_ip+0x170/0x2b0 kernel/softirq.c:302
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 spin_unlock_bh include/linux/spinlock_rt.h:116 [inline]
 batadv_tt_local_purge+0x2ed/0x380 net/batman-adv/translation-table.c:1366
 batadv_tt_purge+0x35/0x9f0 net/batman-adv/translation-table.c:3565
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
task:ksoftirqd/1     state:R  running task     stack:22448 pid:30    tgid:30    ppid:2      task_flags:0x4208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5510 [inline]
 __schedule+0x16dc/0x5500 kernel/sched/core.c:7234
 preempt_schedule_notrace+0x57/0x90 kernel/sched/core.c:7506
 preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13
 class_preempt_notrace_destructor include/linux/preempt.h:469 [inline]
 trace_event_raw_event_lock_acquire+0x26f/0x2e0 include/trace/events/lock.h:23
 __do_trace_lock_acquire include/trace/events/lock.h:23 [inline]
 trace_lock_acquire include/trace/events/lock.h:23 [inline]
 lock_acquire+0x2ff/0x350 kernel/locking/lockdep.c:5831
 rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
 rcu_read_lock include/linux/rcupdate.h:840 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1183 [inline]
 unwind_next_frame+0xac/0x2550 arch/x86/kernel/unwind_orc.c:495
 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:2677 [inline]
 slab_free mm/slub.c:6377 [inline]
 kfree+0x1c5/0x6c0 mm/slub.c:6692
 ieee80211_inform_bss+0xbda/0x10d0 net/mac80211/scan.c:164
 rdev_inform_bss net/wireless/rdev-ops.h:418 [inline]
 cfg80211_inform_single_bss_data+0xd98/0x1bf0 net/wireless/scan.c:2382
 cfg80211_inform_bss_data+0x25b/0x3d50 net/wireless/scan.c:3241
 cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3333
 ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
 ieee80211_scan_rx+0x552/0xa40 net/mac80211/scan.c:364
 __ieee80211_rx_handle_packet net/mac80211/rx.c:5427 [inline]
 ieee80211_rx_list+0x2d23/0x3b40 net/mac80211/rx.c:5720
 ieee80211_rx_napi+0x1ad/0x3d0 net/mac80211/rx.c:5743
 ieee80211_rx include/net/mac80211.h:5437 [inline]
 ieee80211_handle_queued_frames+0xe4/0x1d0 net/mac80211/main.c:452
 tasklet_action_common+0x31c/0x600 kernel/softirq.c:938
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 run_ksoftirqd+0x52/0x180 kernel/softirq.c:1076
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
task:syz-executor    state:D stack:20664 pid:5753  tgid:5753  ppid:1      task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5510 [inline]
 __schedule+0x16dc/0x5500 kernel/sched/core.c:7234
 __schedule_loop kernel/sched/core.c:7311 [inline]
 schedule_rtlock+0x30/0x70 kernel/sched/core.c:7390
 rtlock_slowlock_locked+0x35c5/0x3c20 kernel/locking/rtmutex.c:1895
 rtlock_slowlock kernel/locking/rtmutex.c:1922 [inline]
 rtlock_lock kernel/locking/spinlock_rt.c:43 [inline]
 __rt_spin_lock kernel/locking/spinlock_rt.c:49 [inline]
 rt_spin_lock+0x165/0x400 kernel/locking/spinlock_rt.c:57
 spin_lock include/linux/spinlock_rt.h:45 [inline]
 tasklet_lock_callback kernel/softirq.c:877 [inline]
 tasklet_action_common+0xc5/0x600 kernel/softirq.c:927
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 __local_bh_enable_ip+0x170/0x2b0 kernel/softirq.c:302
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 rcu_read_unlock_bh include/linux/rcupdate.h:914 [inline]
 __dev_queue_xmit+0x1ee9/0x3880 net/core/dev.c:4913
 dev_queue_xmit include/linux/netdevice.h:3448 [inline]
 __netlink_deliver_tap_skb net/netlink/af_netlink.c:308 [inline]
 __netlink_deliver_tap+0x5b4/0x860 net/netlink/af_netlink.c:326
 netlink_deliver_tap+0x19c/0x1b0 net/netlink/af_netlink.c:339
 netlink_deliver_tap_kernel net/netlink/af_netlink.c:348 [inline]
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x7b8/0x990 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775
 __sock_sendmsg net/socket.c:790 [inline]
 __sys_sendto+0x41e/0x5d0 net/socket.c:2252
 __do_sys_sendto net/socket.c:2259 [inline]
 __se_sys_sendto net/socket.c:2255 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2255
 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: 0033:0x7fc671e3e90e
RSP: 002b:00007ffd7da5bfb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 000055557a0c7500 RCX: 00007fc671e3e90e
RDX: 0000000000000028 RSI: 00007fc672c34670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007ffd7da5c034 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000000 R14: 00007fc672c34670 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread starved for 1130 jiffies! g17181 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:25552 pid:18    tgid:18    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6016 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:246 [inline]
RIP: 0010:__sanitizer_cov_trace_switch+0x8c/0x110 kernel/kcov.c:351
Code: eb 0c 49 ff c1 4c 39 c8 0f 84 86 00 00 00 4e 8b 5c ce 10 65 8b 2d 74 91 d8 10 81 e5 00 00 ff 00 41 8b 98 f4 0b 00 00 44 21 d3 <41> 89 de 41 09 ee 74 12 85 ed 75 cc 85 db 74 c8 41 83 b8 0c 17 00
RSP: 0018:ffffc90004056640 EFLAGS: 00000046
RAX: 0000000000000020 RBX: 0000000000000000 RCX: 0000000000000005
RDX: ffffffff81c9faba RSI: ffffffff8e2264b0 RDI: 0000000000000008
RBP: 0000000000000000 R08: ffff88802de69f00 R09: 000000000000001f
R10: 0000000000000100 R11: 000000000000001f R12: 00000042977bcc09
R13: 0000000000000008 R14: 0000000000000000 R15: ffff8880442cbb40
FS:  0000000000000000(0000) GS:ffff888125d3a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3aeb061b60 CR3: 000000003d568000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 rb_read_data_buffer+0x14a/0x5b0 kernel/trace/ring_buffer.c:1861
 check_buffer+0x288/0x7f0 kernel/trace/ring_buffer.c:4690
 __rb_reserve_next+0x537/0xdc0 kernel/trace/ring_buffer.c:4791
 rb_reserve_next_event kernel/trace/ring_buffer.c:4928 [inline]
 ring_buffer_lock_reserve+0xbd5/0x1040 kernel/trace/ring_buffer.c:4987
 __trace_buffer_lock_reserve kernel/trace/trace.h:1676 [inline]
 trace_event_buffer_lock_reserve+0x1d2/0x700 kernel/trace/trace.c:1924
 trace_event_buffer_reserve+0x1ef/0x2d0 kernel/trace/trace_events.c:688
 do_trace_event_raw_event_lock include/trace/events/lock.h:49 [inline]
 trace_event_raw_event_lock+0x126/0x280 include/trace/events/lock.h:49
 __do_trace_lock_release include/trace/events/lock.h:68 [inline]
 trace_lock_release include/trace/events/lock.h:68 [inline]
 lock_release+0x38e/0x3c0 kernel/locking/lockdep.c:5879
 do_write_seqcount_end include/linux/seqlock.h:524 [inline]
 psi_write_end kernel/sched/psi.c:188 [inline]
 psi_task_switch+0x432/0x790 kernel/sched/psi.c:1002
 psi_sched_switch kernel/sched/stats.h:218 [inline]
 __schedule+0x290f/0x5500 kernel/sched/core.c:7228
 preempt_schedule_notrace+0x57/0x90 kernel/sched/core.c:7506
 preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13
 class_preempt_notrace_destructor include/linux/preempt.h:469 [inline]
 trace_event_raw_event_lock_acquire+0x26f/0x2e0 include/trace/events/lock.h:23
 __do_trace_lock_acquire include/trace/events/lock.h:23 [inline]
 trace_lock_acquire include/trace/events/lock.h:23 [inline]
 lock_acquire+0x2ff/0x350 kernel/locking/lockdep.c:5831
 rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
 rcu_read_lock include/linux/rcupdate.h:840 [inline]
 is_bpf_text_address+0x47/0x2b0 kernel/bpf/core.c:748
 kernel_text_address+0xa5/0xe0 kernel/extable.c:125
 __kernel_text_address+0xd/0x30 kernel/extable.c:79
 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:385
 arch_stack_walk+0xfb/0x150 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 save_stack+0x124/0x230 mm/page_owner.c:165
 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1406 [inline]
 free_unref_folios+0xcd4/0x1910 mm/page_alloc.c:3011
 folios_put_refs+0x815/0x920 mm/swap.c:1057
 free_pages_and_swap_cache+0x2ba/0x490 mm/swap_state.c:586
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:138 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:151 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:417 [inline]
 tlb_flush_mmu+0x6d3/0xa30 mm/mmu_gather.c:424
 tlb_finish_mmu+0xf4/0x220 mm/mmu_gather.c:549
 exit_mmap+0x4b2/0x9f0 mm/mmap.c:1313
 __mmput+0xcb/0x3d0 kernel/fork.c:1187
 exit_mm+0x186/0x240 kernel/exit.c:615
 do_exit+0x6cd/0x2360 kernel/exit.c:997
 do_group_exit+0x22d/0x2f0 kernel/exit.c:1152
 get_signal+0x121b/0x12c0 kernel/signal.c:3046
 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
 exit_to_user_mode_loop+0x104/0x730 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
 do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5508cc9257
Code: Unable to access opcode bytes at 0x7f5508cc922d.
RSP: 002b:00007ffc06afd210 EFLAGS: 00000202 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 0000555578185500 RCX: 00007f5508cc9257
RDX: 0000000040000000 RSI: 00007ffc06afd26c RDI: ffffffffffffffff
RBP: 00007ffc06afd26c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc06afd2e8
R13: 0000000000000002 R14: 00007ffc06afd4c8 R15: 0000000000000000
 </TASK>

report is corrupted, running repro again
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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(r0, &(0x7f0000000340)='*: ', 0x3)

program crashed: INFO: rcu detected stall in corrupted
report is corrupted, running repro again
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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(r0, &(0x7f0000000340)='*: ', 0x3)

program crashed: INFO: rcu detected stall in corrupted
report is corrupted, running repro again
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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./trace/set_event\x00', 0x2, 0x0)
write(r0, &(0x7f0000000340)='*: ', 0x3)

program crashed: INFO: rcu detected stall in corrupted
final repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P1047/2:b..l P15/5:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=17113, q=2014 ncpus=2)
task:ksoftirqd/0     state:R  running task     stack:22384 pid:15    tgid:15    ppid:2      task_flags:0x4208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5510 [inline]
 __schedule+0x16dc/0x5500 kernel/sched/core.c:7234
 preempt_schedule_notrace+0x57/0x90 kernel/sched/core.c:7506
 preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13
 class_preempt_notrace_destructor include/linux/preempt.h:469 [inline]
 trace_event_raw_event_lock_acquire+0x26f/0x2e0 include/trace/events/lock.h:23
 __do_trace_lock_acquire include/trace/events/lock.h:23 [inline]
 trace_lock_acquire include/trace/events/lock.h:23 [inline]
 lock_acquire+0x2ff/0x350 kernel/locking/lockdep.c:5831
 rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
 rcu_read_lock include/linux/rcupdate.h:840 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1183 [inline]
 unwind_next_frame+0xac/0x2550 arch/x86/kernel/unwind_orc.c:495
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 kasan_save_stack+0x3e/0x60 mm/kasan/common.c:57
 kasan_record_aux_stack+0xbd/0xd0 mm/kasan/generic.c:556
 kvfree_call_rcu+0x90/0x3c0 mm/slab_common.c:1987
 cfg80211_update_known_bss+0x8e5/0x1430 net/wireless/scan.c:1953
 __cfg80211_bss_update+0x147/0x2010 net/wireless/scan.c:1998
 cfg80211_inform_single_bss_data+0xc3b/0x1bf0 net/wireless/scan.c:2378
 cfg80211_inform_bss_data+0x25b/0x3d50 net/wireless/scan.c:3241
 cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3333
 ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
 ieee80211_scan_rx+0x552/0xa40 net/mac80211/scan.c:364
 __ieee80211_rx_handle_packet net/mac80211/rx.c:5427 [inline]
 ieee80211_rx_list+0x2d23/0x3b40 net/mac80211/rx.c:5720
 ieee80211_rx_napi+0x1ad/0x3d0 net/mac80211/rx.c:5743
 ieee80211_rx include/net/mac80211.h:5437 [inline]
 ieee80211_handle_queued_frames+0xe4/0x1d0 net/mac80211/main.c:452
 tasklet_action_common+0x31c/0x600 kernel/softirq.c:938
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 run_ksoftirqd+0x52/0x180 kernel/softirq.c:1076
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
task:kworker/u8:9    state:D stack:22080 pid:1047  tgid:1047  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events_unbound nsim_dev_trap_report_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5510 [inline]
 __schedule+0x16dc/0x5500 kernel/sched/core.c:7234
 __schedule_loop kernel/sched/core.c:7311 [inline]
 schedule_rtlock+0x30/0x70 kernel/sched/core.c:7390
 rtlock_slowlock_locked+0x35c5/0x3c20 kernel/locking/rtmutex.c:1895
 rtlock_slowlock kernel/locking/rtmutex.c:1922 [inline]
 rtlock_lock kernel/locking/spinlock_rt.c:43 [inline]
 __rt_spin_lock kernel/locking/spinlock_rt.c:49 [inline]
 rt_spin_lock+0x165/0x400 kernel/locking/spinlock_rt.c:57
 spin_lock include/linux/spinlock_rt.h:45 [inline]
 tasklet_lock_callback kernel/softirq.c:877 [inline]
 tasklet_action_common+0xc5/0x600 kernel/softirq.c:927
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 __local_bh_enable_ip+0x170/0x2b0 kernel/softirq.c:302
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 spin_unlock_bh include/linux/spinlock_rt.h:116 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:891 [inline]
 nsim_dev_trap_report_work+0x871/0xcb0 drivers/net/netdevsim/dev.c:922
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>