BTRFS info (device loop3): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 Oops: general protection fault, probably for non-canonical address 0xe01ffbf11002a143: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: maybe wild-memory-access in range [0x00ffff8880150a18-0x00ffff8880150a1f] CPU: 1 PID: 5112 Comm: syz-executor.3 Not tainted 6.10.0-rc2-syzkaller-00010-g2ab795141095 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:__lock_acquire+0x6a/0x1fd0 kernel/locking/lockdep.c:5005 Code: df 0f b6 04 30 84 c0 0f 85 4b 16 00 00 83 3d 88 f1 39 0e 00 0f 84 1c 11 00 00 83 3d ff ad ad 0c 00 74 2c 4c 89 e0 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 e7 e8 68 31 86 00 48 be 00 00 00 00 00 fc RSP: 0018:ffffc90003eef790 EFLAGS: 00010002 RAX: 001ffff11002a143 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00ffff8880150a18 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: dffffc0000000000 R11: fffffbfff1f5833e R12: 00ffff8880150a18 R13: 0000000000000001 R14: ffff888061f9bc00 R15: 0000000000000000 FS: 000055556937e480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffc1f63a5c CR3: 000000006276a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 __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:5851 btrfs_destroy_workqueue+0x45/0x260 fs/btrfs/async-thread.c:360 btrfs_stop_all_workers+0x218/0x2a0 fs/btrfs/disk-io.c:1802 close_ctree+0x67d/0xd20 fs/btrfs/disk-io.c:4365 generic_shutdown_super+0x136/0x2d0 fs/super.c:642 kill_anon_super+0x3b/0x70 fs/super.c:1226 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2096 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1267 task_work_run+0x24f/0x310 kernel/task_work.c:180 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:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f53c0a7e217 Code: b0 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 b0 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007fffc1f63a48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f53c0a7e217 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffc1f63b00 RBP: 00007fffc1f63b00 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fffc1f64bb0 R13: 00007f53c0ad9636 R14: 00007f53c0acad68 R15: 000000000000000a Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__lock_acquire+0x6a/0x1fd0 kernel/locking/lockdep.c:5005 Code: df 0f b6 04 30 84 c0 0f 85 4b 16 00 00 83 3d 88 f1 39 0e 00 0f 84 1c 11 00 00 83 3d ff ad ad 0c 00 74 2c 4c 89 e0 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 e7 e8 68 31 86 00 48 be 00 00 00 00 00 fc RSP: 0018:ffffc90003eef790 EFLAGS: 00010002 RAX: 001ffff11002a143 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00ffff8880150a18 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: dffffc0000000000 R11: fffffbfff1f5833e R12: 00ffff8880150a18 R13: 0000000000000001 R14: ffff888061f9bc00 R15: 0000000000000000 FS: 000055556937e480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffc1f63a5c CR3: 000000006276a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: df 0f fisttps (%rdi) 2: b6 04 mov $0x4,%dh 4: 30 84 c0 0f 85 4b 16 xor %al,0x164b850f(%rax,%rax,8) b: 00 00 add %al,(%rax) d: 83 3d 88 f1 39 0e 00 cmpl $0x0,0xe39f188(%rip) # 0xe39f19c 14: 0f 84 1c 11 00 00 je 0x1136 1a: 83 3d ff ad ad 0c 00 cmpl $0x0,0xcadadff(%rip) # 0xcadae20 21: 74 2c je 0x4f 23: 4c 89 e0 mov %r12,%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 e7 mov %r12,%rdi 33: e8 68 31 86 00 call 0x8631a0 38: 48 rex.W 39: be 00 00 00 00 mov $0x0,%esi 3e: 00 fc add %bh,%ah