------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:1443!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5330 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 e5 9f 11 fe 90 0f 0b e8 dd 9f 11 fe 90 0f 0b e8 d5 9f 11 fe 90 0f 0b e8 cd 9f 11 fe 90 0f 0b e8 c5 9f 11 fe 90 <0f> 0b e8 bd 9f 11 fe 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc9000d2d6620 EFLAGS: 00010293
RAX: ffffffff83ae739b RBX: 0000000000000000 RCX: ffff88801f908000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000d2d68b0 R08: ffffc9000d2d6940 R09: 0000000000000003
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88801efe3108
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff11003dfc621
FS:  00005555932b9500(0000) GS:ffff88808d730000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000000c0 CR3: 000000001c1f3000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 __ocfs2_claim_clusters+0x303/0x8f0 fs/ocfs2/suballoc.c:2421
 ocfs2_local_alloc_new_window fs/ocfs2/localalloc.c:1166 [inline]
 ocfs2_local_alloc_slide_window fs/ocfs2/localalloc.c:1295 [inline]
 ocfs2_reserve_local_alloc_bits+0x12be/0x24e0 fs/ocfs2/localalloc.c:669
 ocfs2_reserve_clusters_with_limit+0x1be/0xba0 fs/ocfs2/suballoc.c:1168
 ocfs2_convert_inline_data_to_extents+0x1c9/0x1230 fs/ocfs2/alloc.c:7097
 ocfs2_try_to_write_inline_data fs/ocfs2/aops.c:1542 [inline]
 ocfs2_write_begin_nolock+0x178d/0x4340 fs/ocfs2/aops.c:1649
 __ocfs2_page_mkwrite fs/ocfs2/mmap.c:93 [inline]
 ocfs2_page_mkwrite+0x600/0xc40 fs/ocfs2/mmap.c:144
 do_page_mkwrite+0x14d/0x310 mm/memory.c:3489
 wp_page_shared mm/memory.c:3890 [inline]
 do_wp_page+0x268d/0x5800 mm/memory.c:4109
 handle_pte_fault mm/memory.c:6211 [inline]
 __handle_mm_fault+0x1033/0x5400 mm/memory.c:6336
 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6505
 do_user_addr_fault+0x764/0x1380 arch/x86/mm/fault.c:1387
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x82/0x100 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f0160e55611
Code: 48 8b 54 24 08 48 85 d2 74 17 8b 44 24 18 0f c8 89 c0 48 89 44 24 18 48 83 fa 01 0f 85 b3 01 00 00 48 8b 44 24 10 8b 54 24 18 <89> 10 e9 15 fd ff ff 48 8b 44 24 10 8b 10 48 8b 44 24 08 48 85 c0
RSP: 002b:00007ffd484c3b00 EFLAGS: 00010246
RAX: 00002000000000c0 RBX: 0000000000000004 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 00005555932b93c8
RBP: 00007ffd484c3c08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f01611e609c
R13: 00007f01611e6090 R14: fffffffffffffffe R15: 00007ffd484c3c50
 </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 e5 9f 11 fe 90 0f 0b e8 dd 9f 11 fe 90 0f 0b e8 d5 9f 11 fe 90 0f 0b e8 cd 9f 11 fe 90 0f 0b e8 c5 9f 11 fe 90 <0f> 0b e8 bd 9f 11 fe 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc9000d2d6620 EFLAGS: 00010293
RAX: ffffffff83ae739b RBX: 0000000000000000 RCX: ffff88801f908000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000d2d68b0 R08: ffffc9000d2d6940 R09: 0000000000000003
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88801efe3108
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff11003dfc621
FS:  00005555932b9500(0000) GS:ffff88808d730000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000000c0 CR3: 000000001c1f3000 CR4: 0000000000352ef0