Extracting prog: 8m1.406290501s
Minimizing prog: 1h5m30.756383314s
Simplifying prog options: 15m52.124220148s
Extracting C: 5m12.460907856s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-ioctl$FS_IOC_GETFSMAP-syz_open_procfs-syz_open_dev$tty1-dup-mount$9p_fd
detailed listing:
executing program 0:
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0)
ioctl$FS_IOC_GETFSMAP(r0, 0x40305839, &(0x7f0000000000)=ANY=[@ANYBLOB="00000000000000000000000000000000000000000002"])
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = syz_open_dev$tty1(0xc, 0x4, 0x1)
r3 = dup(r2)
mount$9p_fd(0x20100000, &(0x7f0000000080)='.\x00', &(0x7f00000000c0), 0x0, &(0x7f0000000180)={'trans=fd,', {'rfdno', 0x3d, r3}, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-ioctl$FS_IOC_GETFSMAP-syz_open_procfs-syz_open_dev$tty1-dup-mount$9p_fd
detailed listing:
executing program 0:
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0)
ioctl$FS_IOC_GETFSMAP(r0, 0x40305839, &(0x7f0000000000)=ANY=[@ANYBLOB="00000000000000000000000000000000000000000002"])
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = syz_open_dev$tty1(0xc, 0x4, 0x1)
r3 = dup(r2)
mount$9p_fd(0x20100000, &(0x7f0000000080)='.\x00', &(0x7f00000000c0), 0x0, &(0x7f0000000180)={'trans=fd,', {'rfdno', 0x3d, r3}, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-ioctl$FS_IOC_GETFSMAP-syz_open_procfs-syz_open_dev$tty1-dup-mount$9p_fd
detailed listing:
executing program 0:
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0)
ioctl$FS_IOC_GETFSMAP(r0, 0x40305839, &(0x7f0000000000)=ANY=[@ANYBLOB="00000000000000000000000000000000000000000002"])
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = syz_open_dev$tty1(0xc, 0x4, 0x1)
r3 = dup(r2)
mount$9p_fd(0x20100000, &(0x7f0000000080)='.\x00', &(0x7f00000000c0), 0x0, &(0x7f0000000180)={'trans=fd,', {'rfdno', 0x3d, r3}, 0x2c, {'wfdno', 0x3d, r1}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-ioctl$FS_IOC_GETFSMAP-syz_open_procfs-syz_open_dev$tty1-dup
detailed listing:
executing program 0:
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0)
ioctl$FS_IOC_GETFSMAP(r0, 0x40305839, &(0x7f0000000000)=ANY=[@ANYBLOB="00000000000000000000000000000000000000000002"])
syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r1 = syz_open_dev$tty1(0xc, 0x4, 0x1)
dup(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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-ioctl$FS_IOC_GETFSMAP-syz_open_procfs-syz_open_dev$tty1-mount$9p_fd
detailed listing:
executing program 0:
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0)
ioctl$FS_IOC_GETFSMAP(r0, 0x40305839, &(0x7f0000000000)=ANY=[@ANYBLOB="00000000000000000000000000000000000000000002"])
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
syz_open_dev$tty1(0xc, 0x4, 0x1)
mount$9p_fd(0x20100000, &(0x7f0000000080)='.\x00', &(0x7f00000000c0), 0x0, &(0x7f0000000180)={'trans=fd,', {}, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-ioctl$FS_IOC_GETFSMAP-syz_open_procfs-dup-mount$9p_fd
detailed listing:
executing program 0:
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0)
ioctl$FS_IOC_GETFSMAP(r0, 0x40305839, &(0x7f0000000000)=ANY=[@ANYBLOB="00000000000000000000000000000000000000000002"])
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r2 = dup(0xffffffffffffffff)
mount$9p_fd(0x20100000, &(0x7f0000000080)='.\x00', &(0x7f00000000c0), 0x0, &(0x7f0000000180)={'trans=fd,', {'rfdno', 0x3d, r2}, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-ioctl$FS_IOC_GETFSMAP-syz_open_dev$tty1-dup-mount$9p_fd
detailed listing:
executing program 0:
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0)
ioctl$FS_IOC_GETFSMAP(r0, 0x40305839, &(0x7f0000000000)=ANY=[@ANYBLOB="00000000000000000000000000000000000000000002"])
r1 = syz_open_dev$tty1(0xc, 0x4, 0x1)
r2 = dup(r1)
mount$9p_fd(0x20100000, &(0x7f0000000080)='.\x00', &(0x7f00000000c0), 0x0, &(0x7f0000000180)={'trans=fd,', {'rfdno', 0x3d, r2}})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-syz_open_procfs-syz_open_dev$tty1-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0)
r0 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r1 = syz_open_dev$tty1(0xc, 0x4, 0x1)
r2 = dup(r1)
mount$9p_fd(0x20100000, &(0x7f0000000080)='.\x00', &(0x7f00000000c0), 0x0, &(0x7f0000000180)={'trans=fd,', {'rfdno', 0x3d, r2}, 0x2c, {'wfdno', 0x3d, r0}})

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-syz_open_dev$tty1-dup-mount$9p_fd
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r1 = syz_open_dev$tty1(0xc, 0x4, 0x1)
r2 = dup(r1)
mount$9p_fd(0x20100000, &(0x7f0000000080)='.\x00', &(0x7f00000000c0), 0x0, &(0x7f0000000180)={'trans=fd,', {'rfdno', 0x3d, r2}, 0x2c, {'wfdno', 0x3d, r0}})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-syz_open_procfs-syz_open_dev$tty1-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0)
r0 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r1 = syz_open_dev$tty1(0xc, 0x4, 0x1)
r2 = dup(r1)
mount$9p_fd(0x20100000, &(0x7f0000000080)='.\x00', &(0x7f00000000c0), 0x0, &(0x7f0000000180)={'trans=fd,', {'rfdno', 0x3d, r2}, 0x2c, {'wfdno', 0x3d, r0}})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-syz_open_procfs-syz_open_dev$tty1-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0)
r0 = syz_open_procfs(0x0, 0x0)
r1 = syz_open_dev$tty1(0xc, 0x4, 0x1)
r2 = dup(r1)
mount$9p_fd(0x20100000, &(0x7f0000000080)='.\x00', &(0x7f00000000c0), 0x0, &(0x7f0000000180)={'trans=fd,', {'rfdno', 0x3d, r2}, 0x2c, {'wfdno', 0x3d, r0}})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-syz_open_procfs-syz_open_dev$tty1-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0)
r0 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r1 = syz_open_dev$tty1(0xc, 0x4, 0x1)
r2 = dup(r1)
mount$9p_fd(0x20100000, 0x0, &(0x7f00000000c0), 0x0, &(0x7f0000000180)={'trans=fd,', {'rfdno', 0x3d, r2}, 0x2c, {'wfdno', 0x3d, r0}})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-syz_open_procfs-syz_open_dev$tty1-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0)
r0 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r1 = syz_open_dev$tty1(0xc, 0x4, 0x1)
r2 = dup(r1)
mount$9p_fd(0x20100000, &(0x7f0000000080)='.\x00', 0x0, 0x0, &(0x7f0000000180)={'trans=fd,', {'rfdno', 0x3d, r2}, 0x2c, {'wfdno', 0x3d, r0}})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-syz_open_procfs-syz_open_dev$tty1-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0)
syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r0 = syz_open_dev$tty1(0xc, 0x4, 0x1)
dup(r0)
mount$9p_fd(0x20100000, &(0x7f0000000080)='.\x00', &(0x7f00000000c0), 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-syz_open_procfs-syz_open_dev$tty1-dup-mount$9p_fd
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-syz_open_procfs-syz_open_dev$tty1-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0)
r0 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r1 = syz_open_dev$tty1(0xc, 0x4, 0x1)
r2 = dup(r1)
mount$9p_fd(0x20100000, &(0x7f0000000080)='.\x00', &(0x7f00000000c0), 0x0, &(0x7f0000000180)={'trans=fd,', {'rfdno', 0x3d, r2}, 0x2c, {'wfdno', 0x3d, r0}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-syz_open_procfs-syz_open_dev$tty1-dup-mount$9p_fd
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-syz_open_procfs-syz_open_dev$tty1-dup-mount$9p_fd
detailed listing:
executing program 0:
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0)
r0 = syz_open_procfs(0x0, &(0x7f0000000000)='fd/3\x00')
r1 = syz_open_dev$tty1(0xc, 0x4, 0x1)
r2 = dup(r1)
mount$9p_fd(0x20100000, &(0x7f0000000080)='.\x00', &(0x7f00000000c0), 0x0, &(0x7f0000000180)={'trans=fd,', {'rfdno', 0x3d, r2}, 0x2c, {'wfdno', 0x3d, r0}})

program did not crash
reproducing took 1h34m36.848099533s
repro crashed as (corrupted=false):
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 25 Comm: kworker/1:1 Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: wg-crypt-wg2 wg_packet_encrypt_worker
Call trace:
 dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 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:3735 [inline]
 validate_chain kernel/locking/lockdep.c:3756 [inline]
 __lock_acquire+0x1b30/0x651c kernel/locking/lockdep.c:5012
 lock_acquire+0x1f4/0x620 kernel/locking/lockdep.c:5623
 do_write_seqcount_begin_nested include/linux/seqlock.h:519 [inline]
 do_write_seqcount_begin include/linux/seqlock.h:545 [inline]
 psi_group_change+0x24c/0x1210 kernel/sched/psi.c:710
 psi_task_change+0x1d4/0x2e0 kernel/sched/psi.c:826
 psi_enqueue kernel/sched/stats.h:102 [inline]
 enqueue_task kernel/sched/core.c:1973 [inline]
 activate_task+0x224/0x244 kernel/sched/core.c:2005
 ttwu_do_activate+0x150/0x234 kernel/sched/core.c:3614
 ttwu_queue kernel/sched/core.c:3823 [inline]
 try_to_wake_up+0x384/0xa64 kernel/sched/core.c:4146
 wake_up_process+0x18/0x24 kernel/sched/core.c:4215
 wake_up_worker kernel/workqueue.c:859 [inline]
 insert_work+0x2b4/0x388 kernel/workqueue.c:1381
 __queue_work+0xb30/0x1054 kernel/workqueue.c:1532
 queue_work_on+0xc4/0x17c kernel/workqueue.c:1559
 wg_queue_enqueue_per_peer_tx+0x1bc/0x33c drivers/net/wireguard/queueing.h:190
 wg_packet_encrypt_worker+0xd7c/0x1094 drivers/net/wireguard/send.c:305
 process_one_work+0x79c/0x1140 kernel/workqueue.c:2310
 worker_thread+0x8f4/0x101c kernel/workqueue.c:2457
 kthread+0x374/0x454 kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
Bluetooth: hci61: command 0x041b tx timeout
Bluetooth: hci63: command 0x0409 tx timeout
Bluetooth: hci62: command 0x040f tx timeout

final repro crashed as (corrupted=false):
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 25 Comm: kworker/1:1 Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: wg-crypt-wg2 wg_packet_encrypt_worker
Call trace:
 dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 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:3735 [inline]
 validate_chain kernel/locking/lockdep.c:3756 [inline]
 __lock_acquire+0x1b30/0x651c kernel/locking/lockdep.c:5012
 lock_acquire+0x1f4/0x620 kernel/locking/lockdep.c:5623
 do_write_seqcount_begin_nested include/linux/seqlock.h:519 [inline]
 do_write_seqcount_begin include/linux/seqlock.h:545 [inline]
 psi_group_change+0x24c/0x1210 kernel/sched/psi.c:710
 psi_task_change+0x1d4/0x2e0 kernel/sched/psi.c:826
 psi_enqueue kernel/sched/stats.h:102 [inline]
 enqueue_task kernel/sched/core.c:1973 [inline]
 activate_task+0x224/0x244 kernel/sched/core.c:2005
 ttwu_do_activate+0x150/0x234 kernel/sched/core.c:3614
 ttwu_queue kernel/sched/core.c:3823 [inline]
 try_to_wake_up+0x384/0xa64 kernel/sched/core.c:4146
 wake_up_process+0x18/0x24 kernel/sched/core.c:4215
 wake_up_worker kernel/workqueue.c:859 [inline]
 insert_work+0x2b4/0x388 kernel/workqueue.c:1381
 __queue_work+0xb30/0x1054 kernel/workqueue.c:1532
 queue_work_on+0xc4/0x17c kernel/workqueue.c:1559
 wg_queue_enqueue_per_peer_tx+0x1bc/0x33c drivers/net/wireguard/queueing.h:190
 wg_packet_encrypt_worker+0xd7c/0x1094 drivers/net/wireguard/send.c:305
 process_one_work+0x79c/0x1140 kernel/workqueue.c:2310
 worker_thread+0x8f4/0x101c kernel/workqueue.c:2457
 kthread+0x374/0x454 kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
Bluetooth: hci61: command 0x041b tx timeout
Bluetooth: hci63: command 0x0409 tx timeout
Bluetooth: hci62: command 0x040f tx timeout