BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d 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: 1 UID: 0 PID: 5395 Comm: syz-executor Not tainted 6.11.0-syzkaller-10669-g11a299a7933e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__lock_acquire+0x69/0x2050 kernel/locking/lockdep.c:5062 Code: b6 04 30 84 c0 0f 85 9b 16 00 00 45 31 f6 83 3d b8 cf ab 0e 00 0f 84 b6 13 00 00 89 54 24 54 89 5c 24 68 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 b9 22 8b 00 48 be 00 00 00 00 00 fc RSP: 0000:ffffc90002e7f5f0 EFLAGS: 00010002 RAX: 001ffff110035943 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00ffff88801aca18 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: dffffc0000000000 R11: fffffbfff203772e R12: ffff88802c853c00 R13: 0000000000000001 R14: 0000000000000000 R15: 00ffff88801aca18 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f19d9480000 CR3: 00000000582a6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5822 __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:5883 btrfs_destroy_workqueue+0x45/0x260 fs/btrfs/async-thread.c:360 btrfs_stop_all_workers+0x218/0x2a0 fs/btrfs/disk-io.c:1793 close_ctree+0x67d/0xd20 fs/btrfs/disk-io.c:4351 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:2121 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:228 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0xa2f/0x28e0 kernel/exit.c:939 do_group_exit+0x207/0x2c0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1097 x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f83cd77df39 Code: Unable to access opcode bytes at 0x7f83cd77df0f. RSP: 002b:00007ffd6ba00688 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f83cd7f0114 RCX: 00007f83cd77df39 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 000000000000000d R08: 00007ffd6b9fe426 R09: 00007ffd6ba01940 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd6ba01940 R13: 00007f83cd7f00b4 R14: 000055558ffe44a8 R15: 00007ffd6ba03af0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__lock_acquire+0x69/0x2050 kernel/locking/lockdep.c:5062 Code: b6 04 30 84 c0 0f 85 9b 16 00 00 45 31 f6 83 3d b8 cf ab 0e 00 0f 84 b6 13 00 00 89 54 24 54 89 5c 24 68 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 b9 22 8b 00 48 be 00 00 00 00 00 fc RSP: 0000:ffffc90002e7f5f0 EFLAGS: 00010002 RAX: 001ffff110035943 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00ffff88801aca18 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: dffffc0000000000 R11: fffffbfff203772e R12: ffff88802c853c00 R13: 0000000000000001 R14: 0000000000000000 R15: 00ffff88801aca18 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f19d9480000 CR3: 00000000582a6000 CR4: 00000000003506f0 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 9b 16 xor %al,0x169b850f(%rax,%rax,8) 9: 00 00 add %al,(%rax) b: 45 31 f6 xor %r14d,%r14d e: 83 3d b8 cf ab 0e 00 cmpl $0x0,0xeabcfb8(%rip) # 0xeabcfcd 15: 0f 84 b6 13 00 00 je 0x13d1 1b: 89 54 24 54 mov %edx,0x54(%rsp) 1f: 89 5c 24 68 mov %ebx,0x68(%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 b9 22 8b 00 call 0x8b22f1 38: 48 rex.W 39: be 00 00 00 00 mov $0x0,%esi 3e: 00 fc add %bh,%ah