ocfs2: Mounting device (7,4) on (node local, slot 0) with writeback 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: 7244 Comm: syz.4.600 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 : ffff800022416b20 x29: ffff800022416d80 x28: 1ffff00004482d98 x27: ffff700004482d7c x26: 0000000000000000 x25: ffff800022416be0 x24: dfff800000000000 x23: 1fffe0001b3973c6 x22: 0000000000000001 x21: ffff800022416be0 x20: 0000000000000000 x19: ffff0001092d74c6 x18: 0000000000000000 x17: 0000000000000002 x16: ffff80000824ec08 x15: 0000000000000002 x14: 1ffff0000296e06c x13: dfff800000000000 x12: 0000000000080000 x11: 000000000001f141 x10: ffff800026a0b000 x9 : 000000000001f142 x8 : ffff800009f08630 x7 : 0000000000000000 x6 : ffff800022416fc0 x5 : ffff800022416fe0 x4 : ffff800022416e40 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_create+0x184/0x4c8 fs/ocfs2/namei.c:674 lookup_open fs/namei.c:3462 [inline] open_last_lookups fs/namei.c:3532 [inline] path_openat+0xf18/0x26cc fs/namei.c:3739 do_filp_open+0x1a8/0x3b4 fs/namei.c:3769 do_sys_openat2+0x128/0x3e0 fs/open.c:1253 do_sys_open fs/open.c:1269 [inline] __do_sys_openat fs/open.c:1285 [inline] __se_sys_openat fs/open.c:1280 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1280 __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 c0f5e2d6e3f02dd6 ]---