------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:1387!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4642 Comm: syz.4.51 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1387 [inline]
pc : ocfs2_claim_suballoc_bits+0x1a34/0x1bfc fs/ocfs2/suballoc.c:1927
lr : ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1387 [inline]
lr : ocfs2_claim_suballoc_bits+0x1a34/0x1bfc fs/ocfs2/suballoc.c:1927
sp : ffff800021dd6a60
x29: ffff800021dd6ca0 x28: 1fffe0001a9c37a1 x27: 1fffe0001a9c37a6
x26: ffff800021dd6b20 x25: 0000000000000000 x24: dfff800000000000
x23: ffff7000043bad64 x22: 0000000000000040 x21: ffff0000d4e1bd30
x20: ffff0000f63c5e00 x19: ffff0000f63c5ec6 x18: ffff800011a5bd40
x17: ffff800018184000 x16: 0000000000000008 x15: ffff800017c65000
x14: ffff0000f64addd8 x13: ffff0000f64adef0 x12: 0000000000080000
x11: 000000000000ce26 x10: ffff800028aed000 x9 : ffff800009dbb6d0
x8 : 000000000000ce27 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff800021dd7130 x4 : ffff800021dd6d60 x3 : 0000000000000040
x2 : 0000000000000040 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1387 [inline]
 ocfs2_claim_suballoc_bits+0x1a34/0x1bfc fs/ocfs2/suballoc.c:1927
 __ocfs2_claim_clusters+0x26c/0x7b4 fs/ocfs2/suballoc.c:2338
 ocfs2_claim_clusters fs/ocfs2/suballoc.c:2375 [inline]
 ocfs2_block_group_alloc_contig fs/ocfs2/suballoc.c:428 [inline]
 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:695 [inline]
 ocfs2_reserve_suballoc_bits+0xbdc/0x3cd4 fs/ocfs2/suballoc.c:828
 ocfs2_reserve_new_metadata_blocks+0x368/0x810 fs/ocfs2/suballoc.c:978
 ocfs2_reserve_new_metadata fs/ocfs2/suballoc.c:1021 [inline]
 ocfs2_lock_allocators+0x248/0x518 fs/ocfs2/suballoc.c:2658
 ocfs2_extend_allocation+0x328/0x15ec fs/ocfs2/file.c:585
 ocfs2_allocate_unwritten_extents+0x26c/0x698 fs/ocfs2/file.c:1496
 __ocfs2_change_file_space+0x798/0xc24 fs/ocfs2/file.c:2023
 ocfs2_fallocate+0x1f0/0x224 fs/ocfs2/file.c:2138
 vfs_fallocate+0x4a4/0x5f4 fs/open.c:323
 ksys_fallocate fs/open.c:346 [inline]
 __do_sys_fallocate fs/open.c:354 [inline]
 __se_sys_fallocate fs/open.c:352 [inline]
 __arm64_sys_fallocate+0xc0/0x110 fs/open.c:352
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: d4210000 979b9e8f d4210000 979b9e8d (d4210000) 
---[ end trace 0000000000000000 ]---