Extracting prog: 7m25.494389929s
Minimizing prog: 1h29m38.832536934s
Simplifying prog options: 16m0.363595831s
Extracting C: 5m10.723844541s
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}}): openat$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r2, @ANYBLOB=',wfdno=', @ANYRESHEX=r1])

program did not crash
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}}): openat$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r2, @ANYBLOB=',wfdno=', @ANYRESHEX=r1])

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=6m21.399385885s, {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$cgroup_ro-openat$vcs-syz_open_procfs-dup
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
dup(r0)

program did not crash
testing program (duration=6m21.399385885s, {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$cgroup_ro-openat$vcs-syz_open_procfs-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r0 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program did not crash
testing program (duration=6m21.399385885s, {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$cgroup_ro-openat$vcs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r1 = dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX])

program did not crash
testing program (duration=6m21.399385885s, {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$cgroup_ro-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r1 = dup(0xffffffffffffffff)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program did not crash
testing program (duration=6m21.399385885s, {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$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r2, @ANYBLOB=',wfdno=', @ANYRESHEX=r1])

program did not crash
testing program (duration=6m21.399385885s, {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$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r2, @ANYBLOB=',wfdno=', @ANYRESHEX=r1])

program did not crash
testing program (duration=6m21.399385885s, {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$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r2, @ANYBLOB=',wfdno=', @ANYRESHEX=r1])

program did not crash
testing program (duration=6m21.399385885s, {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$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r1 = syz_open_procfs(0x0, 0x0)
r2 = dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r2, @ANYBLOB=',wfdno=', @ANYRESHEX=r1])

program did not crash
testing program (duration=6m21.399385885s, {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$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = dup(r0)
mount$9p_fd(0x0, 0x0, &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r2, @ANYBLOB=',wfdno=', @ANYRESHEX=r1])

program did not crash
testing program (duration=6m21.399385885s, {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$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', 0x0, 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r2, @ANYBLOB=',wfdno=', @ANYRESHEX=r1])

program did not crash
testing program (duration=6m21.399385885s, {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$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, 0x0)

program did not crash
testing program (duration=6m21.399385885s, {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$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[])

program did not crash
testing program (duration=6m21.399385885s, {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$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r2, @ANYBLOB, @ANYRESHEX=r1])

program did not crash
testing program (duration=6m21.399385885s, {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$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB, @ANYRESHEX=r2, @ANYBLOB=',wfdno=', @ANYRESHEX=r1])

program did not crash
extracting C reproducer
testing compiled C program (duration=6m21.399385885s, {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$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m21.399385885s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r2, @ANYBLOB=',wfdno=', @ANYRESHEX=r1])

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
extracting C reproducer
testing compiled C program (duration=6m21.399385885s, {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}}): openat$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m21.399385885s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r2, @ANYBLOB=',wfdno=', @ANYRESHEX=r1])

program did not crash
testing program (duration=6m21.399385885s, {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}}): openat$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r2, @ANYBLOB=',wfdno=', @ANYRESHEX=r1])

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
validation run: crashed=true
testing program (duration=6m21.399385885s, {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}}): openat$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r2, @ANYBLOB=',wfdno=', @ANYRESHEX=r1])

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
validation run: crashed=true
testing program (duration=6m21.399385885s, {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}}): openat$cgroup_ro-openat$vcs-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0)
r0 = openat$vcs(0xffffffffffffff9c, &(0x7f0000001880), 0x0, 0x0)
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = dup(r0)
mount$9p_fd(0x0, &(0x7f0000000040)='.\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r2, @ANYBLOB=',wfdno=', @ANYRESHEX=r1])

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
validation run: crashed=true
reproducing took 2h11m20.660616366s
repro crashed as (corrupted=false):
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 4414 Comm: kworker/0:3 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026
Workqueue: wg-kex-wg1 wg_packet_handshake_receive_worker
Call trace:
 dump_backtrace+0x1c0/0x1ec arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1864/0x6800 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x63c kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb0 kernel/locking/spinlock.c:162
 debug_object_activate+0x80/0x4b8 lib/debugobjects.c:698
 debug_rcu_head_queue kernel/rcu/rcu.h:190 [inline]
 call_rcu+0x54/0x94c kernel/rcu/tree.c:2834
 keypair_free_kref drivers/net/wireguard/noise.c:128 [inline]
 kref_put include/linux/kref.h:65 [inline]
 wg_noise_keypair_put+0xdc/0x2a4 drivers/net/wireguard/noise.c:139
 add_new_keypair drivers/net/wireguard/noise.c:237 [inline]
 wg_noise_handshake_begin_session+0x598/0x9a0 drivers/net/wireguard/noise.c:845
 wg_receive_handshake_packet drivers/net/wireguard/receive.c:176 [inline]
 wg_packet_handshake_receive_worker+0x5a8/0xcf8 drivers/net/wireguard/receive.c:213
 process_one_work+0x7f8/0x13a4 kernel/workqueue.c:2292
 worker_thread+0x8c4/0xfec kernel/workqueue.c:2439
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850

final repro crashed as (corrupted=false):
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 4414 Comm: kworker/0:3 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026
Workqueue: wg-kex-wg1 wg_packet_handshake_receive_worker
Call trace:
 dump_backtrace+0x1c0/0x1ec arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1864/0x6800 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x63c kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb0 kernel/locking/spinlock.c:162
 debug_object_activate+0x80/0x4b8 lib/debugobjects.c:698
 debug_rcu_head_queue kernel/rcu/rcu.h:190 [inline]
 call_rcu+0x54/0x94c kernel/rcu/tree.c:2834
 keypair_free_kref drivers/net/wireguard/noise.c:128 [inline]
 kref_put include/linux/kref.h:65 [inline]
 wg_noise_keypair_put+0xdc/0x2a4 drivers/net/wireguard/noise.c:139
 add_new_keypair drivers/net/wireguard/noise.c:237 [inline]
 wg_noise_handshake_begin_session+0x598/0x9a0 drivers/net/wireguard/noise.c:845
 wg_receive_handshake_packet drivers/net/wireguard/receive.c:176 [inline]
 wg_packet_handshake_receive_worker+0x5a8/0xcf8 drivers/net/wireguard/receive.c:213
 process_one_work+0x7f8/0x13a4 kernel/workqueue.c:2292
 worker_thread+0x8c4/0xfec kernel/workqueue.c:2439
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850