BTRFS info (device loop2): checking UUID tree Oops: general protection fault, probably for non-canonical address 0xffdffc00001ffff4: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: maybe wild-memory-access in range [0xff00000000ffffa0-0xff00000000ffffa7] CPU: 3 PID: 5357 Comm: syz.2.26 Not tainted 6.10.0-rc5-syzkaller-00018-g55027e689933 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__lock_acquire+0xe3e/0x3b30 kernel/locking/lockdep.c:5005 Code: 11 00 00 39 05 33 56 1f 12 0f 82 be 05 00 00 ba 01 00 00 00 e9 e4 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 82 1f 00 00 49 81 3c 24 e0 cd e2 92 0f 84 98 f2 RSP: 0018:ffffc90003976dc8 EFLAGS: 00010802 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 1fe00000001ffff4 RSI: ffff88801bec8000 RDI: ff00000000ffffa0 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff8fe2a217 R11: 0000000000000002 R12: ff00000000ffffa0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88802c300000(0063) knlGS:00000000f5cfab40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f73c75a0 CR3: 0000000054ab0000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 __queue_work+0x39e/0x1020 kernel/workqueue.c:2319 queue_work_on+0x11a/0x140 kernel/workqueue.c:2410 run_delalloc_compressed fs/btrfs/inode.c:1731 [inline] btrfs_run_delalloc_range+0x945/0xf80 fs/btrfs/inode.c:2308 writepage_delalloc+0x16a/0x360 fs/btrfs/extent_io.c:1244 __extent_writepage fs/btrfs/extent_io.c:1496 [inline] extent_write_cache_pages+0x84e/0x1ce0 fs/btrfs/extent_io.c:2173 btrfs_writepages+0x21b/0x4a0 fs/btrfs/extent_io.c:2294 do_writepages+0x1a3/0x7f0 mm/page-writeback.c:2634 filemap_fdatawrite_wbc mm/filemap.c:397 [inline] filemap_fdatawrite_wbc+0x148/0x1c0 mm/filemap.c:387 __filemap_fdatawrite_range+0xba/0x100 mm/filemap.c:430 btrfs_fdatawrite_range+0x4a/0x110 fs/btrfs/file.c:4066 start_ordered_ops.constprop.0+0x96/0xe0 fs/btrfs/file.c:1753 btrfs_sync_file+0x1fd/0xe10 fs/btrfs/file.c:1828 vfs_fsync_range+0x141/0x230 fs/sync.c:188 generic_write_sync include/linux/fs.h:2794 [inline] btrfs_do_write_iter+0x584/0x10c0 fs/btrfs/file.c:1705 new_sync_write fs/read_write.c:497 [inline] vfs_write+0x6b6/0x1140 fs/read_write.c:590 ksys_write+0x12f/0x260 fs/read_write.c:643 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf73e2579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f5cfa57c EFLAGS: 00000292 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000020000040 RDX: 0000000000000118 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__lock_acquire+0xe3e/0x3b30 kernel/locking/lockdep.c:5005 Code: 11 00 00 39 05 33 56 1f 12 0f 82 be 05 00 00 ba 01 00 00 00 e9 e4 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 82 1f 00 00 49 81 3c 24 e0 cd e2 92 0f 84 98 f2 RSP: 0018:ffffc90003976dc8 EFLAGS: 00010802 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 1fe00000001ffff4 RSI: ffff88801bec8000 RDI: ff00000000ffffa0 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff8fe2a217 R11: 0000000000000002 R12: ff00000000ffffa0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88802c300000(0063) knlGS:00000000f5cfab40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f73c75a0 CR3: 0000000054ab0000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 11 00 adc %eax,(%rax) 2: 00 39 add %bh,(%rcx) 4: 05 33 56 1f 12 add $0x121f5633,%eax 9: 0f 82 be 05 00 00 jb 0x5cd f: ba 01 00 00 00 mov $0x1,%edx 14: e9 e4 00 00 00 jmp 0xfd 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 4c 89 e2 mov %r12,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 82 1f 00 00 jne 0x1fb6 34: 49 81 3c 24 e0 cd e2 cmpq $0xffffffff92e2cde0,(%r12) 3b: 92 3c: 0f .byte 0xf 3d: 84 .byte 0x84 3e: 98 cwtl 3f: f2 repnz