loop6: detected capacity change from 0 to 32768 ocfs2: Mounting device (7,6) on (node local, slot 0) with ordered data mode. ------------[ cut here ]------------ kernel BUG at fs/ocfs2/suballoc.c:1443! Internal error: Oops - BUG: 00000000f2000800 [#1] SMP Modules linked in: CPU: 0 UID: 0 PID: 8340 Comm: syz.6.290 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1443 [inline] pc : ocfs2_claim_suballoc_bits+0x1df4/0x1e00 fs/ocfs2/suballoc.c:1996 lr : ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1443 [inline] lr : ocfs2_claim_suballoc_bits+0x1df4/0x1e00 fs/ocfs2/suballoc.c:1996 sp : ffff80009f706ce0 x29: ffff80009f706f20 x28: ffff0000d43cbb08 x27: ffff0000e4d5f400 x26: dfff800000000000 x25: ffff0000d43cbb00 x24: ffff80009f706fe0 x23: ffff700013ee0db4 x22: 0000000000000800 x21: ffff80009f706da0 x20: 0000000000000000 x19: ffff0000e4d5f4c6 x18: 00000000ffffffff x17: ffff800093304000 x16: ffff80008adc9494 x15: 0000000000000005 x14: 1ffff00013ee0dfc x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d7e80000 x7 : 0000000000000000 x6 : ffff80009f707160 x5 : ffff80009f707180 x4 : ffff80009f706fe0 x3 : 0000000000000001 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1443 [inline] (P) ocfs2_claim_suballoc_bits+0x1df4/0x1e00 fs/ocfs2/suballoc.c:1996 (P) ocfs2_claim_new_inode+0x2f4/0x710 fs/ocfs2/suballoc.c:2292 ocfs2_mknod_locked+0xfc/0x228 fs/ocfs2/namei.c:637 ocfs2_mknod+0xe38/0x1cf0 fs/ocfs2/namei.c:384 ocfs2_create+0x190/0x474 fs/ocfs2/namei.c:676 lookup_open fs/namei.c:3796 [inline] open_last_lookups fs/namei.c:3895 [inline] path_openat+0x12d8/0x2c40 fs/namei.c:4131 do_filp_open+0x18c/0x36c fs/namei.c:4161 do_sys_openat2+0x11c/0x1b4 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __arm64_sys_openat+0x120/0x158 fs/open.c:1463 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 Code: d4210000 97953690 d4210000 9795368e (d4210000) ---[ end trace 0000000000000000 ]---