loop6: detected capacity change from 0 to 32768
ocfs2: Slot 0 on device (7,6) was already allocated to this node!
ocfs2: Mounting device (7,6) on (node local, slot 0) with ordered data mode.
------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:1387!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 9838 Comm: syz.6.833 Not tainted 5.15.178-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1387 [inline]
pc : ocfs2_claim_suballoc_bits+0x1ba8/0x1d84 fs/ocfs2/suballoc.c:1927
lr : ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1387 [inline]
lr : ocfs2_claim_suballoc_bits+0x1ba8/0x1d84 fs/ocfs2/suballoc.c:1927
sp : ffff8000203a6fc0
x29: ffff8000203a7220 x28: 1ffff00004074e2c x27: ffff700004074e10
x26: 0000000000000000 x25: ffff8000203a7080 x24: dfff800000000000
x23: 1fffe0001cd990a6 x22: 0000000000000001 x21: ffff8000203a7080
x20: 0000000000000000 x19: ffff0000d98ed4c6 x18: ffff8000203a70e0
x17: 0000000000000002 x16: ffff80000824ec08 x15: 00000000000491ef
x14: ffff800017202500 x13: dfff800000000000 x12: 0000000000080000
x11: 00000000000330ea x10: ffff8000272ea000 x9 : 00000000000330eb
x8 : ffff800009f08630 x7 : 0000000000000000 x6 : ffff8000203a7460
x5 : ffff8000203a7480 x4 : ffff8000203a72e0 x3 : 0000000000000001
x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1387 [inline]
 ocfs2_claim_suballoc_bits+0x1ba8/0x1d84 fs/ocfs2/suballoc.c:1927
 ocfs2_claim_new_inode+0x2cc/0x7a0 fs/ocfs2/suballoc.c:2210
 ocfs2_mknod_locked+0x134/0x2e4 fs/ocfs2/namei.c:635
 ocfs2_mknod+0x10b0/0x24f8 fs/ocfs2/namei.c:381
 ocfs2_mkdir+0x184/0x4c8 fs/ocfs2/namei.c:657
 vfs_mkdir+0x334/0x4e4 fs/namei.c:4065
 do_mkdirat+0x20c/0x610 fs/namei.c:4090
 __do_sys_mkdirat fs/namei.c:4105 [inline]
 __se_sys_mkdirat fs/namei.c:4103 [inline]
 __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4103
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: d4210000 9796efa1 d4210000 9796ef9f (d4210000) 
---[ end trace b7bc255ca269abe2 ]---