------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:875!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5321 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 04/01/2014
RIP: 0010:ocfs2_reserve_suballoc_bits+0x40cb/0x4940 fs/ocfs2/suballoc.c:875
Code: 24 70 e9 23 f1 ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c af da ff ff 48 89 df e8 c0 84 67 fe e9 a2 da ff ff e8 46 b4 fb fd 90 <0f> 0b 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 42 dc ff ff 4c 89 f7
RSP: 0018:ffffc9000dc36820 EFLAGS: 00010287
RAX: ffffffff83c9f4ca RBX: 0000000000000001 RCX: 0000000000100000
RDX: ffffc90020802000 RSI: 0000000000000440 RDI: 0000000000000441
RBP: ffffc9000dc36cf0 R08: ffffffff9011b9b7 R09: 1ffffffff2023736
R10: dffffc0000000000 R11: fffffbfff2023737 R12: ffff888047605df8
R13: ffff88803834ae00 R14: dffffc0000000000 R15: fffff52001b86d30
FS:  00007f5af51ab6c0(0000) GS:ffff88808ca58000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5af5189fe8 CR3: 0000000044891000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ocfs2_reserve_cluster_bitmap_bits fs/ocfs2/suballoc.c:1203 [inline]
 ocfs2_reserve_clusters_with_limit+0x3bc/0xc20 fs/ocfs2/suballoc.c:1248
 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:743 [inline]
 ocfs2_reserve_suballoc_bits+0x78e/0x4940 fs/ocfs2/suballoc.c:903
 ocfs2_reserve_new_metadata_blocks+0x415/0x9a0 fs/ocfs2/suballoc.c:1053
 ocfs2_init_xattr_set_ctxt+0x2f5/0x790 fs/ocfs2/xattr.c:3308
 ocfs2_xattr_set+0xc42/0x13e0 fs/ocfs2/xattr.c:3665
 __vfs_setxattr+0x43c/0x480 fs/xattr.c:200
 __vfs_setxattr_noperm+0x12d/0x660 fs/xattr.c:234
 vfs_setxattr+0x163/0x360 fs/xattr.c:321
 do_setxattr fs/xattr.c:636 [inline]
 filename_setxattr+0x296/0x630 fs/xattr.c:664
 path_setxattrat+0x3eb/0x440 fs/xattr.c:708
 __do_sys_lsetxattr fs/xattr.c:749 [inline]
 __se_sys_lsetxattr fs/xattr.c:745 [inline]
 __x64_sys_lsetxattr+0xbf/0xe0 fs/xattr.c:745
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5af439c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5af51aafe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd
RAX: ffffffffffffffda RBX: 00007f5af4616180 RCX: 00007f5af439c799
RDX: 0000000000000000 RSI: 0000200000000200 RDI: 0000200000000240
RBP: 00007f5af4432bd9 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5af4616218 R14: 00007f5af4616180 R15: 00007ffd94ba3b28
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_reserve_suballoc_bits+0x40cb/0x4940 fs/ocfs2/suballoc.c:875
Code: 24 70 e9 23 f1 ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c af da ff ff 48 89 df e8 c0 84 67 fe e9 a2 da ff ff e8 46 b4 fb fd 90 <0f> 0b 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 42 dc ff ff 4c 89 f7
RSP: 0018:ffffc9000dc36820 EFLAGS: 00010287
RAX: ffffffff83c9f4ca RBX: 0000000000000001 RCX: 0000000000100000
RDX: ffffc90020802000 RSI: 0000000000000440 RDI: 0000000000000441
RBP: ffffc9000dc36cf0 R08: ffffffff9011b9b7 R09: 1ffffffff2023736
R10: dffffc0000000000 R11: fffffbfff2023737 R12: ffff888047605df8
R13: ffff88803834ae00 R14: dffffc0000000000 R15: fffff52001b86d30
FS:  00007f5af51ab6c0(0000) GS:ffff88808ca58000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5af5189fe8 CR3: 0000000044891000 CR4: 0000000000352ef0