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 (5327)
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
BTRFS info (device loop0): rebuilding free space tree
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted 6.15.0-rc3-syzkaller-00032-ga79be02bba5c #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:4114 [inline]
 slab_alloc_node mm/slub.c:4190 [inline]
 __kmalloc_cache_noprof+0x73/0x370 mm/slub.c:4367
 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
 qgroup_free_reserved_data fs/btrfs/qgroup.c:4329 [inline]
 __btrfs_qgroup_release_data+0x3ae/0xb20 fs/btrfs/qgroup.c:4363
 btrfs_dio_iomap_begin+0xd24/0x11d0 fs/btrfs/direct-io.c:544
 iomap_iter+0x50b/0xe10 fs/iomap/iter.c:109
 __iomap_dio_rw+0xdf8/0x24f0 fs/iomap/direct-io.c:733
 btrfs_dio_write fs/btrfs/direct-io.c:775 [inline]
 btrfs_direct_write+0x6b0/0xa90 fs/btrfs/direct-io.c:896
 btrfs_do_write_iter+0x2a2/0x7c0 fs/btrfs/file.c:1380
 iter_file_splice_write+0xbdf/0x1530 fs/splice.c:738
 do_splice_from fs/splice.c:935 [inline]
 direct_splice_actor+0x11b/0x220 fs/splice.c:1158
 splice_direct_to_actor+0x595/0xc90 fs/splice.c:1102
 do_splice_direct_actor fs/splice.c:1201 [inline]
 do_splice_direct+0x281/0x3d0 fs/splice.c:1227
 do_sendfile+0x582/0x8c0 fs/read_write.c:1368
 __do_sys_sendfile64 fs/read_write.c:1429 [inline]
 __se_sys_sendfile64+0x17e/0x1e0 fs/read_write.c:1415
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5ddd18e969
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:00007f5dddf3c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f5ddd3b5fa0 RCX: 00007f5ddd18e969
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000007
RBP: 00007f5dddf3c090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000100000001 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f5ddd3b5fa0 R15: 00007ffceff65f78
 </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: 5327 Comm: syz.0.0 Not tainted 6.15.0-rc3-syzkaller-00032-ga79be02bba5c #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 a6 e8 12 fe e9 a3 fe ff ff e8 ec ae 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:ffffc9000d486cd0 EFLAGS: 00010293
RAX: ffffffff841a0e34 RBX: 00000000fffffff4 RCX: ffff888000602440
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: 0000000000001000 R08: ffffffff841a0c4c R09: 00000000ffffffff
R10: dffffc0000000000 R11: fffffbfff1dcbda3 R12: ffffc9000d486e88
R13: ffff88804263a6c0 R14: 0000000000001000 R15: 0000000000000000
FS:  00007f5dddf3c6c0(0000) GS:ffff88808c59a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ac833b4338 CR3: 0000000034b52000 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
 qgroup_free_reserved_data fs/btrfs/qgroup.c:4329 [inline]
 __btrfs_qgroup_release_data+0x3ae/0xb20 fs/btrfs/qgroup.c:4363
 btrfs_dio_iomap_begin+0xd24/0x11d0 fs/btrfs/direct-io.c:544
 iomap_iter+0x50b/0xe10 fs/iomap/iter.c:109
 __iomap_dio_rw+0xdf8/0x24f0 fs/iomap/direct-io.c:733
 btrfs_dio_write fs/btrfs/direct-io.c:775 [inline]
 btrfs_direct_write+0x6b0/0xa90 fs/btrfs/direct-io.c:896
 btrfs_do_write_iter+0x2a2/0x7c0 fs/btrfs/file.c:1380
 iter_file_splice_write+0xbdf/0x1530 fs/splice.c:738
 do_splice_from fs/splice.c:935 [inline]
 direct_splice_actor+0x11b/0x220 fs/splice.c:1158
 splice_direct_to_actor+0x595/0xc90 fs/splice.c:1102
 do_splice_direct_actor fs/splice.c:1201 [inline]
 do_splice_direct+0x281/0x3d0 fs/splice.c:1227
 do_sendfile+0x582/0x8c0 fs/read_write.c:1368
 __do_sys_sendfile64 fs/read_write.c:1429 [inline]
 __se_sys_sendfile64+0x17e/0x1e0 fs/read_write.c:1415
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5ddd18e969
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:00007f5dddf3c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f5ddd3b5fa0 RCX: 00007f5ddd18e969
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000007
RBP: 00007f5dddf3c090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000100000001 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f5ddd3b5fa0 R15: 00007ffceff65f78
 </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 a6 e8 12 fe e9 a3 fe ff ff e8 ec ae 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:ffffc9000d486cd0 EFLAGS: 00010293
RAX: ffffffff841a0e34 RBX: 00000000fffffff4 RCX: ffff888000602440
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: 0000000000001000 R08: ffffffff841a0c4c R09: 00000000ffffffff
R10: dffffc0000000000 R11: fffffbfff1dcbda3 R12: ffffc9000d486e88
R13: ffff88804263a6c0 R14: 0000000000001000 R15: 0000000000000000
FS:  00007f5dddf3c6c0(0000) GS:ffff88808c59a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ac833b4338 CR3: 0000000034b52000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400