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 (5324)
BTRFS info (device loop0): first mount of filesystem 395ef67a-297e-477c-816d-cd80a5b93e5d
BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm
BTRFS info (device loop0): using free-space-tree
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted 6.15.0-rc1-syzkaller-00246-g900241a5cc15 #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 lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 fail_dump lib/fault-inject.c:73 [inline]
 should_fail_ex+0x424/0x570 lib/fault-inject.c:174
 should_failslab+0xac/0x100 mm/failslab.c:46
 slab_pre_alloc_hook mm/slub.c:4104 [inline]
 slab_alloc_node mm/slub.c:4180 [inline]
 __kmalloc_cache_noprof+0x73/0x370 mm/slub.c:4357
 kmalloc_noprof include/linux/slab.h:905 [inline]
 ulist_add_merge+0x18c/0x4b0 fs/btrfs/ulist.c:223
 add_extent_changeset fs/btrfs/extent-io-tree.c:216 [inline]
 clear_state_bit+0x171/0x370 fs/btrfs/extent-io-tree.c:583
 __clear_extent_bit+0x614/0xb00 fs/btrfs/extent-io-tree.c:752
 clear_record_extent_bits+0x4d/0x90 fs/btrfs/extent-io-tree.c:1829
 __btrfs_qgroup_release_data+0x5e6/0xb20 fs/btrfs/qgroup.c:4365
 __cow_file_range_inline+0xc79/0x1280 fs/btrfs/inode.c:666
 cow_file_range_inline+0x318/0x3d0 fs/btrfs/inode.c:690
 cow_file_range+0x40a/0x1290 fs/btrfs/inode.c:1303
 btrfs_run_delalloc_range+0x731/0xff0 fs/btrfs/inode.c:2358
 writepage_delalloc+0xc7e/0x1430 fs/btrfs/extent_io.c:1426
 extent_writepage fs/btrfs/extent_io.c:1757 [inline]
 extent_write_cache_pages fs/btrfs/extent_io.c:2422 [inline]
 btrfs_writepages+0x1555/0x25f0 fs/btrfs/extent_io.c:2555
 do_writepages+0x364/0x890 mm/page-writeback.c:2656
 filemap_fdatawrite_wbc mm/filemap.c:386 [inline]
 __filemap_fdatawrite_range mm/filemap.c:419 [inline]
 __filemap_fdatawrite mm/filemap.c:425 [inline]
 filemap_flush+0x1d2/0x270 mm/filemap.c:470
 btrfs_remap_file_range_prep fs/btrfs/reflink.c:837 [inline]
 btrfs_remap_file_range+0x53f/0x1280 fs/btrfs/reflink.c:881
 vfs_copy_file_range+0xe9d/0x1480 fs/read_write.c:1589
 __do_sys_copy_file_range fs/read_write.c:1675 [inline]
 __se_sys_copy_file_range+0x3fe/0x600 fs/read_write.c:1642
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f715c18d169
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:00007f715d00c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007f715c3a5fa0 RCX: 00007f715c18d169
RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 00007f715d00c090 R08: 0000000000000006 R09: 0000000000000000
R10: 00002000000000c0 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f715c3a5fa0 R15: 00007fff4079cfe8
 </TASK>
------------[ cut here ]------------
kernel BUG at fs/btrfs/extent-io-tree.c:584!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted 6.15.0-rc1-syzkaller-00246-g900241a5cc15 #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+0x365/0x370 fs/btrfs/extent-io-tree.c:584
Code: 12 fe e9 88 fd ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c b0 fe ff ff 48 89 ef e8 b6 b7 12 fe e9 a3 fe ff ff e8 4c 90 a8 fd 90 <0f> 0b 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000d2b6870 EFLAGS: 00010293
RAX: ffffffff841ac4e4 RBX: 00000000fffffff4 RCX: ffff888000312440
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff841ac2fc R09: 00000000ffffffff
R10: dffffc0000000000 R11: fffffbfff1dcbda7 R12: ffffc9000d2b6a78
R13: ffff88803f857180 R14: 0000000000001000 R15: 0000000000000000
FS:  00007f715d00c6c0(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005616cfd8a668 CR3: 000000003644c000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __clear_extent_bit+0x614/0xb00 fs/btrfs/extent-io-tree.c:752
 clear_record_extent_bits+0x4d/0x90 fs/btrfs/extent-io-tree.c:1829
 __btrfs_qgroup_release_data+0x5e6/0xb20 fs/btrfs/qgroup.c:4365
 __cow_file_range_inline+0xc79/0x1280 fs/btrfs/inode.c:666
 cow_file_range_inline+0x318/0x3d0 fs/btrfs/inode.c:690
 cow_file_range+0x40a/0x1290 fs/btrfs/inode.c:1303
 btrfs_run_delalloc_range+0x731/0xff0 fs/btrfs/inode.c:2358
 writepage_delalloc+0xc7e/0x1430 fs/btrfs/extent_io.c:1426
 extent_writepage fs/btrfs/extent_io.c:1757 [inline]
 extent_write_cache_pages fs/btrfs/extent_io.c:2422 [inline]
 btrfs_writepages+0x1555/0x25f0 fs/btrfs/extent_io.c:2555
 do_writepages+0x364/0x890 mm/page-writeback.c:2656
 filemap_fdatawrite_wbc mm/filemap.c:386 [inline]
 __filemap_fdatawrite_range mm/filemap.c:419 [inline]
 __filemap_fdatawrite mm/filemap.c:425 [inline]
 filemap_flush+0x1d2/0x270 mm/filemap.c:470
 btrfs_remap_file_range_prep fs/btrfs/reflink.c:837 [inline]
 btrfs_remap_file_range+0x53f/0x1280 fs/btrfs/reflink.c:881
 vfs_copy_file_range+0xe9d/0x1480 fs/read_write.c:1589
 __do_sys_copy_file_range fs/read_write.c:1675 [inline]
 __se_sys_copy_file_range+0x3fe/0x600 fs/read_write.c:1642
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f715c18d169
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:00007f715d00c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007f715c3a5fa0 RCX: 00007f715c18d169
RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 00007f715d00c090 R08: 0000000000000006 R09: 0000000000000000
R10: 00002000000000c0 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f715c3a5fa0 R15: 00007fff4079cfe8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:clear_state_bit+0x365/0x370 fs/btrfs/extent-io-tree.c:584
Code: 12 fe e9 88 fd ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c b0 fe ff ff 48 89 ef e8 b6 b7 12 fe e9 a3 fe ff ff e8 4c 90 a8 fd 90 <0f> 0b 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000d2b6870 EFLAGS: 00010293
RAX: ffffffff841ac4e4 RBX: 00000000fffffff4 RCX: ffff888000312440
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff841ac2fc R09: 00000000ffffffff
R10: dffffc0000000000 R11: fffffbfff1dcbda7 R12: ffffc9000d2b6a78
R13: ffff88803f857180 R14: 0000000000001000 R15: 0000000000000000
FS:  00007f715d00c6c0(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005616cfd8a668 CR3: 000000003644c000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400