BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d Oops: general protection fault, probably for non-canonical address 0xe01ffbf110036143: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: maybe wild-memory-access in range [0x00ffff88801b0a18-0x00ffff88801b0a1f] CPU: 1 UID: 0 PID: 5826 Comm: syz-executor Not tainted 6.14.0-rc3-syzkaller-00096-ge9a8cac0bf89 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:__lock_acquire+0x6a/0x2100 kernel/locking/lockdep.c:5091 Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d 6b 3d 9f 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 68 bc 89 00 48 be 00 00 00 00 00 fc RSP: 0018:ffffc9000411f790 EFLAGS: 00010002 RAX: 001ffff110036143 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00ffff88801b0a18 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001 R10: dffffc0000000000 R11: fffffbfff20777cf R12: ffff88802da31e00 R13: 0000000000000000 R14: 0000000000000000 R15: 00ffff88801b0a18 FS: 0000555583f65500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f909ff8 CR3: 000000005f2ce000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 __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:5909 btrfs_destroy_workqueue+0x45/0x260 fs/btrfs/async-thread.c:360 btrfs_stop_all_workers+0x1cc/0x2a0 fs/btrfs/disk-io.c:1791 close_ctree+0x6ec/0xd90 fs/btrfs/disk-io.c:4442 generic_shutdown_super+0x139/0x2d0 fs/super.c:642 kill_anon_super+0x3b/0x70 fs/super.c:1237 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2100 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1413 task_work_run+0x24f/0x310 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [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+0x13f/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: 0033:0x7fe9c6d8e3d7 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd5376c5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fe9c6e0e08c RCX: 00007fe9c6d8e3d7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd5376c670 RBP: 00007ffd5376c670 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd5376d700 R13: 00007fe9c6e0e08c R14: 00000000000114be R15: 00007ffd5376d740 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__lock_acquire+0x6a/0x2100 kernel/locking/lockdep.c:5091 Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d 6b 3d 9f 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 68 bc 89 00 48 be 00 00 00 00 00 fc RSP: 0018:ffffc9000411f790 EFLAGS: 00010002 RAX: 001ffff110036143 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00ffff88801b0a18 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001 R10: dffffc0000000000 R11: fffffbfff20777cf R12: ffff88802da31e00 R13: 0000000000000000 R14: 0000000000000000 R15: 00ffff88801b0a18 FS: 0000555583f65500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f909ff8 CR3: 000000005f2ce000 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 6b 3d 9f 0e 00 cmpl $0x0,0xe9f3d6b(%rip) # 0xe9f3d80 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 68 bc 89 00 call 0x89bca0 38: 48 rex.W 39: be 00 00 00 00 mov $0x0,%esi 3e: 00 fc add %bh,%ah