Extracting prog: 4m8.192024397s
Minimizing prog: 2m43.530928296s
Simplifying prog options: 0s
Extracting C: 1m17.257044695s
Simplifying C: 11m52.921188163s


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$nci
detailed listing:
executing program 0:
openat$nci(0xffffffffffffff9c, &(0x7f0000000080), 0x2, 0x0)

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$nci
detailed listing:
executing program 0:
openat$nci(0xffffffffffffff9c, &(0x7f0000000080), 0x2, 0x0)

program crashed: BUG: MAX_LOCKDEP_KEYS too low!
single: successfully extracted reproducer
found reproducer with 1 syscalls
minimizing guilty program
testing program (duration=2m33.999591387s, {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$nci
detailed listing:
executing program 0:
openat$nci(0xffffffffffffff9c, 0x0, 0x2, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=2m33.999591387s, {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$nci
program crashed: BUG: MAX_LOCKDEP_KEYS too low!
simplifying C reproducer
testing compiled C program (duration=2m33.999591387s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nci
program crashed: BUG: MAX_LOCKDEP_KEYS too low!
testing compiled C program (duration=2m33.999591387s, {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$nci
program crashed: BUG: MAX_LOCKDEP_KEYS too low!
testing compiled C program (duration=2m33.999591387s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nci
program crashed: BUG: MAX_LOCKDEP_KEYS too low!
testing compiled C program (duration=2m33.999591387s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nci
program crashed: BUG: MAX_LOCKDEP_KEYS too low!
testing compiled C program (duration=2m33.999591387s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nci
program crashed: BUG: MAX_LOCKDEP_KEYS too low!
testing compiled C program (duration=2m33.999591387s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nci
program crashed: BUG: MAX_LOCKDEP_KEYS too low!
testing compiled C program (duration=2m33.999591387s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nci
program crashed: BUG: MAX_LOCKDEP_KEYS too low!
reproducing took 20m1.901219911s
repro crashed as (corrupted=false):
BUG: MAX_LOCKDEP_KEYS too low!
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 16387 Comm: syz-executor272 Not tainted 6.12.0-rc6-syzkaller-g8936d33c1f69 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:484 (C)
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 register_lock_class+0x56c/0x6b4 kernel/locking/lockdep.c:1328
 __lock_acquire+0x18c/0x77c8 kernel/locking/lockdep.c:5077
 lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5825
 touch_wq_lockdep_map+0xa8/0x164 kernel/workqueue.c:3880
 __flush_workqueue+0x118/0x1174 kernel/workqueue.c:3922
 drain_workqueue+0xb8/0x32c kernel/workqueue.c:4086
 destroy_workqueue+0xb8/0xdc0 kernel/workqueue.c:5830
 nci_unregister_device+0x90/0x21c net/nfc/nci/core.c:1304
 virtual_ncidev_close+0x5c/0xa0 drivers/nfc/virtual_ncidev.c:172
 __fput+0x1bc/0x75c fs/file_table.c:431
 ____fput+0x20/0x30 fs/file_table.c:459
 task_work_run+0x230/0x2e0 kernel/task_work.c:239
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0x4ec/0x1ad0 kernel/exit.c:939
 do_group_exit+0x194/0x22c kernel/exit.c:1088
 __do_sys_exit_group kernel/exit.c:1099 [inline]
 __se_sys_exit_group kernel/exit.c:1097 [inline]
 pid_child_should_wake+0x0/0x1dc kernel/exit.c:1097
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

final repro crashed as (corrupted=false):
BUG: MAX_LOCKDEP_KEYS too low!
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 16387 Comm: syz-executor272 Not tainted 6.12.0-rc6-syzkaller-g8936d33c1f69 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:484 (C)
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 register_lock_class+0x56c/0x6b4 kernel/locking/lockdep.c:1328
 __lock_acquire+0x18c/0x77c8 kernel/locking/lockdep.c:5077
 lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5825
 touch_wq_lockdep_map+0xa8/0x164 kernel/workqueue.c:3880
 __flush_workqueue+0x118/0x1174 kernel/workqueue.c:3922
 drain_workqueue+0xb8/0x32c kernel/workqueue.c:4086
 destroy_workqueue+0xb8/0xdc0 kernel/workqueue.c:5830
 nci_unregister_device+0x90/0x21c net/nfc/nci/core.c:1304
 virtual_ncidev_close+0x5c/0xa0 drivers/nfc/virtual_ncidev.c:172
 __fput+0x1bc/0x75c fs/file_table.c:431
 ____fput+0x20/0x30 fs/file_table.c:459
 task_work_run+0x230/0x2e0 kernel/task_work.c:239
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0x4ec/0x1ad0 kernel/exit.c:939
 do_group_exit+0x194/0x22c kernel/exit.c:1088
 __do_sys_exit_group kernel/exit.c:1099 [inline]
 __se_sys_exit_group kernel/exit.c:1097 [inline]
 pid_child_should_wake+0x0/0x1dc kernel/exit.c:1097
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600