input: syz1 as /devices/virtual/input/input3
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 7036 Comm: syz.8.403 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Call trace:
 dump_backtrace+0x1c8/0x1f4 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+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:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1b40/0x6544 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x644 kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb4 kernel/locking/spinlock.c:162
 get_partial_node+0x44/0x3b8 mm/slub.c:2215
 get_partial mm/slub.c:2330 [inline]
 ___slab_alloc+0x690/0xec8 mm/slub.c:3131
 __slab_alloc+0x74/0xd0 mm/slub.c:3240
 slab_alloc_node mm/slub.c:3325 [inline]
 __kmem_cache_alloc_node+0x298/0x320 mm/slub.c:3398
 __do_kmalloc_node mm/slab_common.c:935 [inline]
 __kmalloc_node_track_caller+0xcc/0x16c mm/slab_common.c:956
 kstrdup mm/util.c:61 [inline]
 kstrdup_const+0x90/0xdc mm/util.c:84
 __kernfs_new_node+0xa8/0x5d8 fs/kernfs/dir.c:610
 kernfs_new_node+0x11c/0x230 fs/kernfs/dir.c:690
 kernfs_create_link+0x98/0x1e0 fs/kernfs/symlink.c:39
 sysfs_do_create_link_sd+0x8c/0x120 fs/sysfs/symlink.c:44
 sysfs_do_create_link fs/sysfs/symlink.c:80 [inline]
 sysfs_create_link+0x74/0x94 fs/sysfs/symlink.c:92
 device_create_sys_dev_entry+0x110/0x178 drivers/base/core.c:3522
 device_add+0xa90/0xf94 drivers/base/core.c:3664
 cdev_device_add+0x168/0x2f8 fs/char_dev.c:549
 evdev_connect+0x2d8/0x384 drivers/input/evdev.c:1386
 input_attach_handler drivers/input/input.c:1060 [inline]
 input_register_device+0xae4/0xf88 drivers/input/input.c:2470
 uinput_create_device+0x350/0x518 drivers/input/misc/uinput.c:364
 uinput_ioctl_handler+0x404/0x1340 drivers/input/misc/uinput.c:885
 uinput_ioctl+0x38/0x4c drivers/input/misc/uinput.c:1056
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
ecryptfs_parse_options: You must supply at least one valid auth tok signature as a mount parameter; see the eCryptfs README
Error parsing options; rc = [-22]