bcachefs (loop2): alloc_read... done
bcachefs (loop2): stripes_read... done
bcachefs (loop2): snapshots_read... done
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in fs/bcachefs/btree_key_cache.c:216:16
index 16 is out of range for type 'bkey_cached *[16]'
CPU: 0 PID: 7941 Comm: syz-executor.2 Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:114
ubsan_epilogue lib/ubsan.c:231 [inline]
__ubsan_handle_out_of_bounds+0x110/0x150 lib/ubsan.c:429
bkey_cached_alloc fs/bcachefs/btree_key_cache.c:216 [inline]
btree_key_cache_create fs/bcachefs/btree_key_cache.c:330 [inline]
bch2_btree_path_traverse_cached_slowpath+0x4304/0x4d90 fs/bcachefs/btree_key_cache.c:485
bch2_btree_path_traverse_cached+0x9ec/0xdc0 fs/bcachefs/btree_key_cache.c:588
bch2_btree_path_traverse_one+0x16b4/0x2e40 fs/bcachefs/btree_iter.c:1153
bch2_btree_path_traverse fs/bcachefs/btree_iter.h:229 [inline]
bch2_btree_path_traverse fs/bcachefs/btree_iter.h:221 [inline]
bch2_btree_iter_peek_slot+0x715/0x2450 fs/bcachefs/btree_iter.c:2598
__bch2_bkey_get_iter fs/bcachefs/btree_iter.h:552 [inline]
bch2_bkey_get_iter fs/bcachefs/btree_iter.h:566 [inline]
bch2_trans_start_alloc_update_noupdate+0x6f7/0x9c0 fs/bcachefs/alloc_background.c:435
__bch2_trans_mark_metadata_bucket.isra.0+0xf1/0x420 fs/bcachefs/buckets.c:1327
bch2_trans_mark_metadata_bucket fs/bcachefs/buckets.c:1413 [inline]
bch2_trans_mark_metadata_bucket+0x132/0x320 fs/bcachefs/buckets.c:1395
bch2_trans_mark_metadata_sectors.constprop.0+0x1a3/0x250 fs/bcachefs/buckets.c:1430
__bch2_trans_mark_dev_sb fs/bcachefs/buckets.c:1465 [inline]
bch2_trans_mark_dev_sb+0x1fe/0x6a0 fs/bcachefs/buckets.c:1493
bch2_trans_mark_dev_sbs_flags fs/bcachefs/buckets.c:1503 [inline]
bch2_trans_mark_dev_sbs+0x28/0x320 fs/bcachefs/buckets.c:1515
bch2_run_recovery_pass+0x8e/0x1a0 fs/bcachefs/recovery_passes.c:182
bch2_run_recovery_passes+0x33b/0x710 fs/bcachefs/recovery_passes.c:225
bch2_fs_recovery+0x259f/0x3db0 fs/bcachefs/recovery.c:807
bch2_fs_start+0x2e9/0x600 fs/bcachefs/super.c:1035
bch2_fs_open+0xde0/0x10f0 fs/bcachefs/super.c:2127
bch2_mount+0xe0c/0x11a0 fs/bcachefs/fs.c:1919
legacy_get_tree+0x109/0x220 fs/fs_context.c:662
vfs_get_tree+0x8f/0x380 fs/super.c:1780
do_new_mount fs/namespace.c:3352 [inline]
path_mount+0x6e1/0x1f10 fs/namespace.c:3679
do_mount fs/namespace.c:3692 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount fs/namespace.c:3875 [inline]
__ia32_sys_mount+0x295/0x320 fs/namespace.c:3875
do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
__do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386
do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf725a579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f5e4c400 EFLAGS: 00000292 ORIG_RAX: 0000000000000015
RAX: ffffffffffffffda RBX: 00000000f5e4c460 RCX: 0000000020000040
RDX: 0000000020011a00 RSI: 0000000001200014 RDI: 00000000f5e4c4a0
RBP: 00000000f5e4c460 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
---[ end trace ]---
----------------
Code disassembly (best guess), 2 bytes skipped:
0: 10 06 adc %al,(%rsi)
2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi
6: 10 07 adc %al,(%rdi)
8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi
c: 10 08 adc %cl,(%rax)
e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi
1e: 00 51 52 add %dl,0x52(%rcx)
21: 55 push %rbp
22: 89 e5 mov %esp,%ebp
24: 0f 34 sysenter
26: cd 80 int $0x80
* 28: 5d pop %rbp <-- trapping instruction
29: 5a pop %rdx
2a: 59 pop %rcx
2b: c3 ret
2c: 90 nop
2d: 90 nop
2e: 90 nop
2f: 90 nop
30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi
37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi