loop0: detected capacity change from 0 to 32768
BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz.0.0 (5335)
BTRFS info (device loop0): first mount of filesystem 395ef67a-297e-477c-816d-cd80a5b93e5d
BTRFS info (device loop0): using sha256 (sha256-lib) checksum algorithm
BTRFS info (device loop0): enabling ssd optimizations
BTRFS info (device loop0): turning on async discard
BTRFS info (device loop0): enabling free space tree
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5335 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 fail_dump lib/fault-inject.c:73 [inline]
 should_fail_ex+0x414/0x560 lib/fault-inject.c:174
 should_failslab+0xa8/0x100 mm/failslab.c:46
 slab_pre_alloc_hook mm/slub.c:4901 [inline]
 slab_alloc_node mm/slub.c:5234 [inline]
 __kmalloc_cache_noprof+0x84/0x700 mm/slub.c:5766
 kmalloc_noprof include/linux/slab.h:957 [inline]
 ulist_add_merge+0x196/0x4c0 fs/btrfs/ulist.c:222
 add_extent_changeset fs/btrfs/extent-io-tree.c:199 [inline]
 clear_state_bit+0x15f/0x3c0 fs/btrfs/extent-io-tree.c:572
 btrfs_clear_extent_bit_changeset+0x946/0xed0 fs/btrfs/extent-io-tree.c:749
 __btrfs_qgroup_release_data+0x21c/0x9f0 fs/btrfs/qgroup.c:4338
 __cow_file_range_inline+0xb23/0x1200 fs/btrfs/inode.c:677
 cow_file_range_inline+0x336/0x430 fs/btrfs/inode.c:701
 cow_file_range+0x336/0x10a0 fs/btrfs/inode.c:1316
 writepage_delalloc+0xf06/0x1a60 fs/btrfs/extent_io.c:1501
 extent_writepage fs/btrfs/extent_io.c:1864 [inline]
 extent_write_cache_pages fs/btrfs/extent_io.c:2552 [inline]
 btrfs_writepages+0x12fd/0x21e0 fs/btrfs/extent_io.c:2685
 do_writepages+0x32e/0x550 mm/page-writeback.c:2598
 filemap_writeback mm/filemap.c:387 [inline]
 filemap_flush_range mm/filemap.c:436 [inline]
 filemap_flush+0x191/0x230 mm/filemap.c:451
 btrfs_remap_file_range_prep fs/btrfs/reflink.c:839 [inline]
 btrfs_remap_file_range+0x5a4/0x1320 fs/btrfs/reflink.c:886
 vfs_copy_file_range+0xd81/0x1370 fs/read_write.c:1598
 __do_sys_copy_file_range fs/read_write.c:1681 [inline]
 __se_sys_copy_file_range+0x2fb/0x470 fs/read_write.c:1648
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe91798f7c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe918821038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007fe917be5fa0 RCX: 00007fe91798f7c9
RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 00007fe918821090 R08: 0000000000000006 R09: 0000000000000000
R10: 00002000000000c0 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fe917be6038 R14: 00007fe917be5fa0 R15: 00007ffc8146c648
 </TASK>
------------[ cut here ]------------
kernel BUG at fs/btrfs/extent-io-tree.c:573!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5335 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:clear_state_bit+0x3be/0x3c0 fs/btrfs/extent-io-tree.c:573
Code: fe e9 27 fd ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 3e fe ff ff 4c 89 ef e8 cd e7 2e fe e9 31 fe ff ff e8 c3 0b c7 fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6
RSP: 0018:ffffc900090e6a78 EFLAGS: 00010293
RAX: ffffffff83fab4cd RBX: ffff888042799c00 RCX: ffff888000490000
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: 0000000000001000 R08: 0000000000000820 R09: 00000000ffffffff
R10: dffffc0000000000 R11: fffffbfff1c4d83b R12: 0000000000000000
R13: ffffc900090e6cf8 R14: 0000000000000000 R15: 00000000fffffff4
FS:  00007fe9188216c0(0000) GS:ffff88808d239000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe9187186ec CR3: 0000000043a9a000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 btrfs_clear_extent_bit_changeset+0x946/0xed0 fs/btrfs/extent-io-tree.c:749
 __btrfs_qgroup_release_data+0x21c/0x9f0 fs/btrfs/qgroup.c:4338
 __cow_file_range_inline+0xb23/0x1200 fs/btrfs/inode.c:677
 cow_file_range_inline+0x336/0x430 fs/btrfs/inode.c:701
 cow_file_range+0x336/0x10a0 fs/btrfs/inode.c:1316
 writepage_delalloc+0xf06/0x1a60 fs/btrfs/extent_io.c:1501
 extent_writepage fs/btrfs/extent_io.c:1864 [inline]
 extent_write_cache_pages fs/btrfs/extent_io.c:2552 [inline]
 btrfs_writepages+0x12fd/0x21e0 fs/btrfs/extent_io.c:2685
 do_writepages+0x32e/0x550 mm/page-writeback.c:2598
 filemap_writeback mm/filemap.c:387 [inline]
 filemap_flush_range mm/filemap.c:436 [inline]
 filemap_flush+0x191/0x230 mm/filemap.c:451
 btrfs_remap_file_range_prep fs/btrfs/reflink.c:839 [inline]
 btrfs_remap_file_range+0x5a4/0x1320 fs/btrfs/reflink.c:886
 vfs_copy_file_range+0xd81/0x1370 fs/read_write.c:1598
 __do_sys_copy_file_range fs/read_write.c:1681 [inline]
 __se_sys_copy_file_range+0x2fb/0x470 fs/read_write.c:1648
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe91798f7c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe918821038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007fe917be5fa0 RCX: 00007fe91798f7c9
RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 00007fe918821090 R08: 0000000000000006 R09: 0000000000000000
R10: 00002000000000c0 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fe917be6038 R14: 00007fe917be5fa0 R15: 00007ffc8146c648
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:clear_state_bit+0x3be/0x3c0 fs/btrfs/extent-io-tree.c:573
Code: fe e9 27 fd ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 3e fe ff ff 4c 89 ef e8 cd e7 2e fe e9 31 fe ff ff e8 c3 0b c7 fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6
RSP: 0018:ffffc900090e6a78 EFLAGS: 00010293
RAX: ffffffff83fab4cd RBX: ffff888042799c00 RCX: ffff888000490000
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: 0000000000001000 R08: 0000000000000820 R09: 00000000ffffffff
R10: dffffc0000000000 R11: fffffbfff1c4d83b R12: 0000000000000000
R13: ffffc900090e6cf8 R14: 0000000000000000 R15: 00000000fffffff4
FS:  00007fe9188216c0(0000) GS:ffff88808d239000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe9187186ec CR3: 0000000043a9a000 CR4: 0000000000352ef0