loop0: detected capacity change from 0 to 32768
BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz.0.0 (5333)
BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d
BTRFS info (device loop0): using sha256 (sha256-lib) checksum algorithm
BTRFS error (device loop0): failed to load root extent
BTRFS error (device loop0): open_ctree failed: -5
------------[ cut here ]------------
kernel BUG at fs/buffer.c:1582!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5333 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:folio_set_bh+0x1dc/0x1e0 fs/buffer.c:1582
Code: 4c 89 e2 e8 c6 2c 79 02 e9 42 ff ff ff e8 fc ba 75 ff 48 89 df 48 c7 c6 60 23 7a 8b e8 7d 95 dd fe 90 0f 0b e8 e5 ba 75 ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f
RSP: 0018:ffffc9000fdcf9d8 EFLAGS: 00010283
RAX: ffffffff824a592b RBX: ffffea0001383fc0 RCX: 0000000000100000
RDX: ffffc9000dce2000 RSI: 0000000000000b2b RDI: 0000000000000b2c
RBP: dffffc0000000000 R08: ffffea0001383fc7 R09: 1ffffd40002707f8
R10: dffffc0000000000 R11: fffff940002707f9 R12: 0000000000000000
R13: 0000000000001000 R14: ffff888000538828 R15: 0000000000001000
FS:  00007f04957e56c0(0000) GS:ffff88808d733000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe7c4e5000 CR3: 0000000041fc8000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 folio_alloc_buffers+0x3a0/0x640 fs/buffer.c:946
 grow_dev_folio fs/buffer.c:1075 [inline]
 grow_buffers fs/buffer.c:1116 [inline]
 __getblk_slow fs/buffer.c:1134 [inline]
 bdev_getblk+0x286/0x660 fs/buffer.c:1461
 __bread_gfp+0x89/0x3c0 fs/buffer.c:1515
 sb_bread include/linux/buffer_head.h:346 [inline]
 qnx4_fill_super+0x1c6/0x770 fs/qnx4/inode.c:216
 get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1691
 vfs_get_tree+0x92/0x2b0 fs/super.c:1751
 fc_mount fs/namespace.c:1208 [inline]
 do_new_mount_fc fs/namespace.c:3651 [inline]
 do_new_mount+0x302/0xa10 fs/namespace.c:3727
 do_mount fs/namespace.c:4050 [inline]
 __do_sys_mount fs/namespace.c:4238 [inline]
 __se_sys_mount+0x313/0x410 fs/namespace.c:4215
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f049498efc9
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:00007f04957e5038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f0494be5fa0 RCX: 00007f049498efc9
RDX: 0000200000000240 RSI: 0000200000000080 RDI: 00002000000000c0
RBP: 00007f0494a11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0494be6038 R14: 00007f0494be5fa0 R15: 00007ffc2c4e60d8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:folio_set_bh+0x1dc/0x1e0 fs/buffer.c:1582
Code: 4c 89 e2 e8 c6 2c 79 02 e9 42 ff ff ff e8 fc ba 75 ff 48 89 df 48 c7 c6 60 23 7a 8b e8 7d 95 dd fe 90 0f 0b e8 e5 ba 75 ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f
RSP: 0018:ffffc9000fdcf9d8 EFLAGS: 00010283
RAX: ffffffff824a592b RBX: ffffea0001383fc0 RCX: 0000000000100000
RDX: ffffc9000dce2000 RSI: 0000000000000b2b RDI: 0000000000000b2c
RBP: dffffc0000000000 R08: ffffea0001383fc7 R09: 1ffffd40002707f8
R10: dffffc0000000000 R11: fffff940002707f9 R12: 0000000000000000
R13: 0000000000001000 R14: ffff888000538828 R15: 0000000000001000
FS:  00007f04957e56c0(0000) GS:ffff88808d733000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ecd34fab40 CR3: 0000000041fc8000 CR4: 0000000000352ef0