Oops: general protection fault, probably for non-canonical address 0xe01ffbf110035943: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: maybe wild-memory-access in range [0x00ffff88801aca18-0x00ffff88801aca1f] CPU: 0 UID: 0 PID: 5832 Comm: syz-executor Not tainted 6.12.0-syzkaller-12113-gbcc8eda6d349 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__lock_acquire+0x6a/0x2100 kernel/locking/lockdep.c:5089 Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d cb 9c 9d 0e 00 0f 84 c8 13 00 00 89 54 24 60 89 5c 24 38 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 e8 7b 8c 00 48 be 00 00 00 00 00 fc RSP: 0018:ffffc90003f9f4f0 EFLAGS: 00010002 RAX: 001ffff110035943 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00ffff88801aca18 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001 R10: dffffc0000000000 R11: fffffbfff203036f R12: ffff88805aec8000 R13: 0000000000000000 R14: 0000000000000000 R15: 00ffff88801aca18 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056091b4dc950 CR3: 000000003384e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline] _raw_spin_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:170 put_pwq_unlocked+0x42/0x190 kernel/workqueue.c:1662 destroy_workqueue+0x99d/0xc40 kernel/workqueue.c:5897 ext4_put_super+0x12a/0xd50 fs/ext4/super.c:1310 generic_shutdown_super+0x139/0x2d0 fs/super.c:642 kill_block_super+0x44/0x90 fs/super.c:1710 ext4_kill_sb+0x68/0xa0 fs/ext4/super.c:7379 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373 task_work_run+0x24f/0x310 kernel/task_work.c:239 exit_task_work include/linux/task_work.h:43 [inline] do_exit+0xa2f/0x28e0 kernel/exit.c:938 do_group_exit+0x207/0x2c0 kernel/exit.c:1087 get_signal+0x16b2/0x1750 kernel/signal.c:3016 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5662b7f1b0 Code: Unable to access opcode bytes at 0x7f5662b7f186. RSP: 002b:00007ffc05c784e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: 0000000000000007 RBX: 0000000000000000 RCX: 00007f5662b7f1b0 RDX: 0000000000000000 RSI: 00007ffc05c78610 RDI: 00000000ffffff9c RBP: 00007ffc05c78610 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffc05c79700 R13: 00007f5662bf3824 R14: 000055556cddd4a8 R15: 00007ffc05c7b8b0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__lock_acquire+0x6a/0x2100 kernel/locking/lockdep.c:5089 Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d cb 9c 9d 0e 00 0f 84 c8 13 00 00 89 54 24 60 89 5c 24 38 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 e8 7b 8c 00 48 be 00 00 00 00 00 fc RSP: 0018:ffffc90003f9f4f0 EFLAGS: 00010002 RAX: 001ffff110035943 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00ffff88801aca18 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001 R10: dffffc0000000000 R11: fffffbfff203036f R12: ffff88805aec8000 R13: 0000000000000000 R14: 0000000000000000 R15: 00ffff88801aca18 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056091b4dc950 CR3: 000000003384e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: b6 04 mov $0x4,%dh 2: 30 84 c0 0f 85 f8 16 xor %al,0x16f8850f(%rax,%rax,8) 9: 00 00 add %al,(%rax) b: 45 31 f6 xor %r14d,%r14d e: 83 3d cb 9c 9d 0e 00 cmpl $0x0,0xe9d9ccb(%rip) # 0xe9d9ce0 15: 0f 84 c8 13 00 00 je 0x13e3 1b: 89 54 24 60 mov %edx,0x60(%rsp) 1f: 89 5c 24 38 mov %ebx,0x38(%rsp) 23: 4c 89 f8 mov %r15,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 80 3c 30 00 cmpb $0x0,(%rax,%rsi,1) <-- trapping instruction 2e: 74 12 je 0x42 30: 4c 89 ff mov %r15,%rdi 33: e8 e8 7b 8c 00 call 0x8c7c20 38: 48 rex.W 39: be 00 00 00 00 mov $0x0,%esi 3e: 00 fc add %bh,%ah