BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 10270 Comm: syz.0.1082 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
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_nested+0x50/0x6c kernel/locking/spinlock.c:382
 raw_spin_rq_lock_nested+0x2c/0x44 kernel/sched/core.c:667
 raw_spin_rq_lock kernel/sched/sched.h:1653 [inline]
 rq_lock kernel/sched/sched.h:1991 [inline]
 __schedule+0x39c/0x2d80 kernel/sched/core.c:7108
 preempt_schedule_irq+0x74/0x174 kernel/sched/core.c:7556
 raw_irqentry_exit_cond_resched+0x30/0x40 kernel/entry/common.c:145
 irqentry_exit_to_kernel_mode_preempt+0x44/0x54 include/linux/irq-entry-common.h:468
 arm64_exit_to_kernel_mode+0x3c/0x94 arch/arm64/kernel/entry-common.c:59
 __el1_irq arch/arm64/kernel/entry-common.c:513 [inline]
 el1_interrupt+0x4c/0x60 arch/arm64/kernel/entry-common.c:523
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:528
 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:586
 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P)
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P)
 lock_acquire+0x16c/0x364 kernel/locking/lockdep.c:5871 (P)
 fs_reclaim_acquire+0xb8/0x110 mm/page_alloc.c:4346
 might_alloc include/linux/sched/mm.h:317 [inline]
 slab_pre_alloc_hook mm/slub.c:4537 [inline]
 slab_alloc_node mm/slub.c:4897 [inline]
 __do_kmalloc_node mm/slub.c:5333 [inline]
 __kvmalloc_node_noprof+0x12c/0x7d8 mm/slub.c:6905
 __v4l2_ctrl_modify_dimensions+0x1c4/0x564 drivers/media/v4l2-core/v4l2-ctrls-api.c:1036
 v4l2_ctrl_modify_dimensions include/media/v4l2-ctrls.h:1043 [inline]
 vivid_update_format_cap+0xabc/0x12d0 drivers/media/test-drivers/vivid/vivid-vid-cap.c:473
 vidioc_s_input+0x2e4/0x11cc drivers/media/test-drivers/vivid/vivid-vid-cap.c:1178
 vivid_s_input+0x9c/0xc8 drivers/media/test-drivers/vivid/vivid-core.c:512
 v4l_s_input+0xbc/0x160 drivers/media/v4l2-core/v4l2-ioctl.c:1165
 __video_do_ioctl+0x768/0xaa8 drivers/media/v4l2-core/v4l2-ioctl.c:3133
 video_usercopy+0x74c/0xe88 drivers/media/v4l2-core/v4l2-ioctl.c:3475
 video_ioctl2+0x3c/0x50 drivers/media/v4l2-core/v4l2-ioctl.c:3532
 v4l2_ioctl+0x148/0x18c drivers/media/v4l2-core/v4l2-dev.c:366
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __arm64_sys_ioctl+0x154/0x1cc fs/ioctl.c:583
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140
 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:738
 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:757
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:590