Extracting prog: 7m24.87305402s
Minimizing prog: 1h42m14.588892164s
Simplifying prog options: 12m6.106735298s
Extracting C: 5m10.889680524s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-pipe2$9p-prctl$PR_SET_MM_MAP-sendmsg$NFT_BATCH-io_uring_setup-bpf$PROG_LOAD-bpf$MAP_CREATE-io_uring_enter-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff7000/0x1000)=nil, &(0x7f00005a4000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000ff8000/0x3000)=nil, &(0x7f00005a4000/0x2000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ff5000/0x1000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x20044185)
r2 = io_uring_setup(0x7, &(0x7f0000000040)={0x0, 0xc8a1, 0xc000, 0x8, 0xc1})
bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x12, 0x3, 0x0, &(0x7f0000000240)='syzkaller\x00', 0x80000000, 0x0, 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(r2, 0x2219, 0x7721, 0x16, 0x0, 0x0)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) (async)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-pipe2$9p-prctl$PR_SET_MM_MAP-sendmsg$NFT_BATCH-io_uring_setup-bpf$PROG_LOAD-bpf$MAP_CREATE-io_uring_enter-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff7000/0x1000)=nil, &(0x7f00005a4000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000ff8000/0x3000)=nil, &(0x7f00005a4000/0x2000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ff5000/0x1000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x20044185)
r2 = io_uring_setup(0x7, &(0x7f0000000040)={0x0, 0xc8a1, 0xc000, 0x8, 0xc1})
bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x12, 0x3, 0x0, &(0x7f0000000240)='syzkaller\x00', 0x80000000, 0x0, 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(r2, 0x2219, 0x7721, 0x16, 0x0, 0x0)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) (async)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-pipe2$9p-prctl$PR_SET_MM_MAP-sendmsg$NFT_BATCH-io_uring_setup-bpf$PROG_LOAD-bpf$MAP_CREATE-io_uring_enter-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff7000/0x1000)=nil, &(0x7f00005a4000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000ff8000/0x3000)=nil, &(0x7f00005a4000/0x2000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ff5000/0x1000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x20044185)
r2 = io_uring_setup(0x7, &(0x7f0000000040)={0x0, 0xc8a1, 0xc000, 0x8, 0xc1})
bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x12, 0x3, 0x0, &(0x7f0000000240)='syzkaller\x00', 0x80000000, 0x0, 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(r2, 0x2219, 0x7721, 0x16, 0x0, 0x0)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) (async)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
single: successfully extracted reproducer
found reproducer with 10 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-pipe2$9p-prctl$PR_SET_MM_MAP-sendmsg$NFT_BATCH-io_uring_setup-bpf$PROG_LOAD-bpf$MAP_CREATE-io_uring_enter-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff7000/0x1000)=nil, &(0x7f00005a4000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000ff8000/0x3000)=nil, &(0x7f00005a4000/0x2000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ff5000/0x1000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x20044185)
r2 = io_uring_setup(0x7, &(0x7f0000000040)={0x0, 0xc8a1, 0xc000, 0x8, 0xc1})
bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x12, 0x3, 0x0, &(0x7f0000000240)='syzkaller\x00', 0x80000000, 0x0, 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(r2, 0x2219, 0x7721, 0x16, 0x0, 0x0)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) (async)

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-pipe2$9p-prctl$PR_SET_MM_MAP-sendmsg$NFT_BATCH-io_uring_setup-bpf$PROG_LOAD-bpf$MAP_CREATE-io_uring_enter-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff7000/0x1000)=nil, &(0x7f00005a4000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000ff8000/0x3000)=nil, &(0x7f00005a4000/0x2000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ff5000/0x1000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x20044185)
r2 = io_uring_setup(0x7, &(0x7f0000000040)={0x0, 0xc8a1, 0xc000, 0x8, 0xc1})
bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x12, 0x3, 0x0, &(0x7f0000000240)='syzkaller\x00', 0x80000000, 0x0, 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(r2, 0x2219, 0x7721, 0x16, 0x0, 0x0)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

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-pipe2$9p-prctl$PR_SET_MM_MAP-sendmsg$NFT_BATCH-io_uring_setup-bpf$PROG_LOAD-bpf$MAP_CREATE-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff7000/0x1000)=nil, &(0x7f00005a4000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000ff8000/0x3000)=nil, &(0x7f00005a4000/0x2000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ff5000/0x1000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x20044185)
io_uring_setup(0x7, &(0x7f0000000040)={0x0, 0xc8a1, 0xc000, 0x8, 0xc1})
bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x12, 0x3, 0x0, &(0x7f0000000240)='syzkaller\x00', 0x80000000, 0x0, 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)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) (async)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
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-pipe2$9p-prctl$PR_SET_MM_MAP-sendmsg$NFT_BATCH-io_uring_setup-bpf$PROG_LOAD-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff7000/0x1000)=nil, &(0x7f00005a4000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000ff8000/0x3000)=nil, &(0x7f00005a4000/0x2000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ff5000/0x1000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x20044185)
io_uring_setup(0x7, &(0x7f0000000040)={0x0, 0xc8a1, 0xc000, 0x8, 0xc1})
bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x12, 0x3, 0x0, &(0x7f0000000240)='syzkaller\x00', 0x80000000, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x2e, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) (async)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
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-pipe2$9p-prctl$PR_SET_MM_MAP-sendmsg$NFT_BATCH-io_uring_setup-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff7000/0x1000)=nil, &(0x7f00005a4000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000ff8000/0x3000)=nil, &(0x7f00005a4000/0x2000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ff5000/0x1000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x20044185)
io_uring_setup(0x7, &(0x7f0000000040)={0x0, 0xc8a1, 0xc000, 0x8, 0xc1})
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) (async)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
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-pipe2$9p-prctl$PR_SET_MM_MAP-sendmsg$NFT_BATCH-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff7000/0x1000)=nil, &(0x7f00005a4000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000ff8000/0x3000)=nil, &(0x7f00005a4000/0x2000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ff5000/0x1000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x20044185)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) (async)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
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-pipe2$9p-prctl$PR_SET_MM_MAP-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff7000/0x1000)=nil, &(0x7f00005a4000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000ff8000/0x3000)=nil, &(0x7f00005a4000/0x2000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ff5000/0x1000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) (async)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
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-pipe2$9p-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) (async)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
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$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)) (async)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600))

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-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) (async)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

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-pipe2$9p-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
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-pipe2$9p-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

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-pipe2$9p-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(0x0, 0x800)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600))
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600))

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-pipe2$9p-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, 0x0, &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

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-pipe2$9p-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', 0x0, 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

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-pipe2$9p-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, 0x0)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

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-pipe2$9p-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
mount$9p_fd(0x0, 0x0, &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

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-pipe2$9p-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', 0x0, 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

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-pipe2$9p-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, 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-pipe2$9p-mount$9p_fd-mount$9p_fd
program crashed: no output from test machine
a never seen crash title: no output from test machine, 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-pipe2$9p-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

program did not crash
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-pipe2$9p-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

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-pipe2$9p-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
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-pipe2$9p-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
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-pipe2$9p-mount$9p_fd-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000180)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000001c0), 0x2000000, &(0x7f0000000600)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
validation run: crashed=true
reproducing took 2h21m21.089557574s
repro crashed as (corrupted=false):
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 50 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026
Workqueue: hci34 hci_cmd_sync_work
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3855 [inline]
 validate_chain kernel/locking/lockdep.c:3876 [inline]
 __lock_acquire+0xfdc/0x2ebc kernel/locking/lockdep.c:5237
 lock_acquire+0x140/0x364 kernel/locking/lockdep.c:5868
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock_irq+0x58/0x70 kernel/locking/spinlock.c:174
 start_flush_work kernel/workqueue.c:4287 [inline]
 __flush_work+0x1b0/0xa24 kernel/workqueue.c:4338
 __cancel_work_sync+0xc8/0x144 kernel/workqueue.c:4494
 disable_delayed_work_sync+0x24/0x38 kernel/workqueue.c:4657
 l2cap_conn_del+0x74/0x408 net/bluetooth/l2cap_core.c:1803
 l2cap_connect_cfm+0x110/0xb64 net/bluetooth/l2cap_core.c:7537
 hci_connect_cfm include/net/bluetooth/hci_core.h:2139 [inline]
 hci_conn_failed+0x198/0x334 net/bluetooth/hci_conn.c:1410
 hci_abort_conn_sync+0x5a4/0x938 net/bluetooth/hci_sync.c:5913
 abort_conn_sync+0x58/0x8c net/bluetooth/hci_conn.c:3165
 hci_cmd_sync_work+0x1b0/0x374 net/bluetooth/hci_sync.c:332
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3405
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3486
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838
Bluetooth: hci62: command tx timeout
Bluetooth: hci63: command tx timeout
Bluetooth: hci64: command tx timeout
Bluetooth: hci62: command tx timeout
Bluetooth: hci63: command tx timeout
Bluetooth: hci64: command tx timeout
Bluetooth: hci62: command tx timeout
Bluetooth: hci65: command tx timeout
Bluetooth: hci63: command tx timeout
Bluetooth: hci65: command tx timeout

final repro crashed as (corrupted=false):
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 50 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026
Workqueue: hci34 hci_cmd_sync_work
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3855 [inline]
 validate_chain kernel/locking/lockdep.c:3876 [inline]
 __lock_acquire+0xfdc/0x2ebc kernel/locking/lockdep.c:5237
 lock_acquire+0x140/0x364 kernel/locking/lockdep.c:5868
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock_irq+0x58/0x70 kernel/locking/spinlock.c:174
 start_flush_work kernel/workqueue.c:4287 [inline]
 __flush_work+0x1b0/0xa24 kernel/workqueue.c:4338
 __cancel_work_sync+0xc8/0x144 kernel/workqueue.c:4494
 disable_delayed_work_sync+0x24/0x38 kernel/workqueue.c:4657
 l2cap_conn_del+0x74/0x408 net/bluetooth/l2cap_core.c:1803
 l2cap_connect_cfm+0x110/0xb64 net/bluetooth/l2cap_core.c:7537
 hci_connect_cfm include/net/bluetooth/hci_core.h:2139 [inline]
 hci_conn_failed+0x198/0x334 net/bluetooth/hci_conn.c:1410
 hci_abort_conn_sync+0x5a4/0x938 net/bluetooth/hci_sync.c:5913
 abort_conn_sync+0x58/0x8c net/bluetooth/hci_conn.c:3165
 hci_cmd_sync_work+0x1b0/0x374 net/bluetooth/hci_sync.c:332
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3405
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3486
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838
Bluetooth: hci62: command tx timeout
Bluetooth: hci63: command tx timeout
Bluetooth: hci64: command tx timeout
Bluetooth: hci62: command tx timeout
Bluetooth: hci63: command tx timeout
Bluetooth: hci64: command tx timeout
Bluetooth: hci62: command tx timeout
Bluetooth: hci65: command tx timeout
Bluetooth: hci63: command tx timeout
Bluetooth: hci65: command tx timeout