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 (5341)
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): using free-space-tree
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5341 Comm: syz.0.0 Not tainted 6.16.0-syzkaller-04055-g14bed9bc81ba #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:4101 [inline]
 slab_alloc_node mm/slub.c:4177 [inline]
 __kmalloc_cache_noprof+0x70/0x3d0 mm/slub.c:4354
 kmalloc_noprof include/linux/slab.h:905 [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+0x97b/0xf00 fs/btrfs/extent-io-tree.c:749
 qgroup_free_reserved_data fs/btrfs/qgroup.c:4317 [inline]
 __btrfs_qgroup_release_data+0x49d/0xa20 fs/btrfs/qgroup.c:4352
 btrfs_page_mkwrite+0x98a/0x1a70 fs/btrfs/file.c:1911
 do_page_mkwrite+0x14d/0x310 mm/memory.c:3378
 wp_page_shared mm/memory.c:3779 [inline]
 do_wp_page+0x268d/0x5800 mm/memory.c:3998
 handle_pte_fault mm/memory.c:6085 [inline]
 __handle_mm_fault+0x1144/0x5620 mm/memory.c:6212
 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6381
 do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1387
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:__put_user_8+0xd/0x20 arch/x86/lib/putuser.S:115
Code: 89 01 31 c9 0f 01 ca e9 d1 3b 03 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 89 cb 48 c1 fb 3f 48 09 d9 0f 01 cb <48> 89 01 31 c9 0f 01 ca c3 cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000d677eb8 EFLAGS: 00050202
RAX: 00007f7d983e2000 RBX: 0000000000000000 RCX: 0000200000000140
RDX: 0000000000000000 RSI: ffffffff8db65ad9 RDI: ffffffff8be31000
RBP: ffffc9000d677f48 R08: 0000000000000000 R09: ffffffff820bb5b0
R10: dffffc0000000000 R11: fffff52001acefb9 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff8880358c0000 R15: ffff8880358c0028
 __do_sys_io_setup fs/aio.c:1402 [inline]
 __se_sys_io_setup+0xd6/0x1a0 fs/aio.c:1382
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7d9758e9a9
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:00007f7d9842c038 EFLAGS: 00000246 ORIG_RAX: 00000000000000ce
RAX: ffffffffffffffda RBX: 00007f7d977b5fa0 RCX: 00007f7d9758e9a9
RDX: 0000000000000000 RSI: 0000200000000140 RDI: 0000000000000200
RBP: 00007f7d9842c090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f7d977b5fa0 R15: 00007ffc71072e68
 </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: 5341 Comm: syz.0.0 Not tainted 6.16.0-syzkaller-04055-g14bed9bc81ba #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 7d 20 36 fe e9 31 fe ff ff e8 43 99 d2 fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00
RSP: 0018:ffffc9000d677398 EFLAGS: 00010293
RAX: ffffffff83ed1bcd RBX: ffff88803314a9c0 RCX: ffff88803c360000
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: 0000000000001000 R08: 0000000000000820 R09: 00000000ffffffff
R10: dffffc0000000000 R11: fffffbfff1c4b9d7 R12: 0000000000000000
R13: ffffc9000d6775c8 R14: 0000000000000000 R15: 00000000fffffff4
FS:  00007f7d9842c6c0(0000) GS:ffff88808d27b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000140 CR3: 0000000043990000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 btrfs_clear_extent_bit_changeset+0x97b/0xf00 fs/btrfs/extent-io-tree.c:749
 qgroup_free_reserved_data fs/btrfs/qgroup.c:4317 [inline]
 __btrfs_qgroup_release_data+0x49d/0xa20 fs/btrfs/qgroup.c:4352
 btrfs_page_mkwrite+0x98a/0x1a70 fs/btrfs/file.c:1911
 do_page_mkwrite+0x14d/0x310 mm/memory.c:3378
 wp_page_shared mm/memory.c:3779 [inline]
 do_wp_page+0x268d/0x5800 mm/memory.c:3998
 handle_pte_fault mm/memory.c:6085 [inline]
 __handle_mm_fault+0x1144/0x5620 mm/memory.c:6212
 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6381
 do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1387
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:__put_user_8+0xd/0x20 arch/x86/lib/putuser.S:115
Code: 89 01 31 c9 0f 01 ca e9 d1 3b 03 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 89 cb 48 c1 fb 3f 48 09 d9 0f 01 cb <48> 89 01 31 c9 0f 01 ca c3 cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000d677eb8 EFLAGS: 00050202
RAX: 00007f7d983e2000 RBX: 0000000000000000 RCX: 0000200000000140
RDX: 0000000000000000 RSI: ffffffff8db65ad9 RDI: ffffffff8be31000
RBP: ffffc9000d677f48 R08: 0000000000000000 R09: ffffffff820bb5b0
R10: dffffc0000000000 R11: fffff52001acefb9 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff8880358c0000 R15: ffff8880358c0028
 __do_sys_io_setup fs/aio.c:1402 [inline]
 __se_sys_io_setup+0xd6/0x1a0 fs/aio.c:1382
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7d9758e9a9
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:00007f7d9842c038 EFLAGS: 00000246 ORIG_RAX: 00000000000000ce
RAX: ffffffffffffffda RBX: 00007f7d977b5fa0 RCX: 00007f7d9758e9a9
RDX: 0000000000000000 RSI: 0000200000000140 RDI: 0000000000000200
RBP: 00007f7d9842c090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f7d977b5fa0 R15: 00007ffc71072e68
 </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 7d 20 36 fe e9 31 fe ff ff e8 43 99 d2 fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00
RSP: 0018:ffffc9000d677398 EFLAGS: 00010293
RAX: ffffffff83ed1bcd RBX: ffff88803314a9c0 RCX: ffff88803c360000
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: 0000000000001000 R08: 0000000000000820 R09: 00000000ffffffff
R10: dffffc0000000000 R11: fffffbfff1c4b9d7 R12: 0000000000000000
R13: ffffc9000d6775c8 R14: 0000000000000000 R15: 00000000fffffff4
FS:  00007f7d9842c6c0(0000) GS:ffff88808d27b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000140 CR3: 0000000043990000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess):
   0:	89 01                	mov    %eax,(%rcx)
   2:	31 c9                	xor    %ecx,%ecx
   4:	0f 01 ca             	clac
   7:	e9 d1 3b 03 00       	jmp    0x33bdd
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	48 89 cb             	mov    %rcx,%rbx
  20:	48 c1 fb 3f          	sar    $0x3f,%rbx
  24:	48 09 d9             	or     %rbx,%rcx
  27:	0f 01 cb             	stac
* 2a:	48 89 01             	mov    %rax,(%rcx) <-- trapping instruction
  2d:	31 c9                	xor    %ecx,%ecx
  2f:	0f 01 ca             	clac
  32:	c3                   	ret
  33:	cc                   	int3
  34:	cc                   	int3
  35:	cc                   	int3
  36:	cc                   	int3
  37:	90                   	nop
  38:	90                   	nop
  39:	90                   	nop
  3a:	90                   	nop
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop