------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:1443!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5356 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:ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1443 [inline]
RIP: 0010:ocfs2_claim_suballoc_bits+0x243c/0x2450 fs/ocfs2/suballoc.c:1996
Code: c2 fb ff ff e8 05 b7 16 fe 90 0f 0b e8 fd b6 16 fe 90 0f 0b e8 f5 b6 16 fe 90 0f 0b e8 ed b6 16 fe 90 0f 0b e8 e5 b6 16 fe 90 <0f> 0b e8 dd b6 16 fe 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc9000d4bea80 EFLAGS: 00010287
RAX: ffffffff83a9065b RBX: 0000000000000000 RCX: 0000000000100000
RDX: ffffc9000e743000 RSI: 0000000000000598 RDI: 0000000000000599
RBP: ffffc9000d4bed10 R08: ffffc9000d4beda0 R09: 0000000000000003
R10: 0000000000000005 R11: 0000000000000002 R12: ffff888011f24188
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff110023e4831
FS:  00007f11e11f56c0(0000) GS:ffff88808d007000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa7bdb460f5 CR3: 000000004274f000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 __ocfs2_claim_clusters+0x303/0x8f0 fs/ocfs2/suballoc.c:2421
 ocfs2_claim_clusters fs/ocfs2/suballoc.c:2458 [inline]
 ocfs2_block_group_alloc_contig fs/ocfs2/suballoc.c:432 [inline]
 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:699 [inline]
 ocfs2_reserve_suballoc_bits+0xf1e/0x4640 fs/ocfs2/suballoc.c:834
 ocfs2_reserve_new_metadata_blocks+0x403/0x940 fs/ocfs2/suballoc.c:984
 ocfs2_init_xattr_set_ctxt+0x307/0x700 fs/ocfs2/xattr.c:3277
 ocfs2_xattr_set+0xb70/0x11f0 fs/ocfs2/xattr.c:3634
 __vfs_setxattr+0x43c/0x480 fs/xattr.c:200
 __vfs_setxattr_noperm+0x12d/0x660 fs/xattr.c:234
 vfs_setxattr+0x16b/0x2f0 fs/xattr.c:321
 do_setxattr fs/xattr.c:636 [inline]
 filename_setxattr+0x274/0x600 fs/xattr.c:665
 path_setxattrat+0x364/0x3a0 fs/xattr.c:713
 __do_sys_setxattr fs/xattr.c:747 [inline]
 __se_sys_setxattr fs/xattr.c:743 [inline]
 __x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:743
 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: 0033:0x7f11e4d8eec9
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:00007f11e11f5038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f11e4fe6090 RCX: 00007f11e4d8eec9
RDX: 0000000000000000 RSI: 00002000000000c0 RDI: 0000200000000080
RBP: 00007f11e4e11f91 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f11e4fe6128 R14: 00007f11e4fe6090 R15: 00007ffd17d44038
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1443 [inline]
RIP: 0010:ocfs2_claim_suballoc_bits+0x243c/0x2450 fs/ocfs2/suballoc.c:1996
Code: c2 fb ff ff e8 05 b7 16 fe 90 0f 0b e8 fd b6 16 fe 90 0f 0b e8 f5 b6 16 fe 90 0f 0b e8 ed b6 16 fe 90 0f 0b e8 e5 b6 16 fe 90 <0f> 0b e8 dd b6 16 fe 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc9000d4bea80 EFLAGS: 00010287
RAX: ffffffff83a9065b RBX: 0000000000000000 RCX: 0000000000100000
RDX: ffffc9000e743000 RSI: 0000000000000598 RDI: 0000000000000599
RBP: ffffc9000d4bed10 R08: ffffc9000d4beda0 R09: 0000000000000003
R10: 0000000000000005 R11: 0000000000000002 R12: ffff888011f24188
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff110023e4831
FS:  00007f11e11f56c0(0000) GS:ffff88808d007000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5839efca90 CR3: 000000004274f000 CR4: 0000000000352ef0