loop1: detected capacity change from 0 to 32768 ================================================================================ UBSAN: shift-out-of-bounds in fs/ocfs2/super.c:2365:4 shift exponent 2147483648 is too large for 32-bit type 'int' CPU: 0 PID: 6912 Comm: syz.1.561 Not tainted 6.1.135-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 ubsan_epilogue+0x14/0x48 lib/ubsan.c:151 __ubsan_handle_shift_out_of_bounds+0x2b0/0x34c lib/ubsan.c:321 ocfs2_verify_volume fs/ocfs2/super.c:2365 [inline] ocfs2_sb_probe fs/ocfs2/super.c:792 [inline] ocfs2_fill_super+0xb20/0x3e98 fs/ocfs2/super.c:988 mount_bdev+0x264/0x358 fs/super.c:1443 ocfs2_mount+0x44/0x58 fs/ocfs2/super.c:1186 legacy_get_tree+0xd4/0x16c fs/fs_context.c:632 vfs_get_tree+0x90/0x274 fs/super.c:1573 do_new_mount+0x228/0x810 fs/namespace.c:3057 path_mount+0x5b4/0xe78 fs/namespace.c:3387 do_mount fs/namespace.c:3400 [inline] __do_sys_mount fs/namespace.c:3608 [inline] __se_sys_mount fs/namespace.c:3585 [inline] __arm64_sys_mount+0x49c/0x584 fs/namespace.c:3585 __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 ================================================================================ (syz.1.561,6912,0):ocfs2_verify_volume:2366 ERROR: bad cluster size found: 1 (syz.1.561,6912,0):ocfs2_verify_volume:2385 ERROR: status = -22 (syz.1.561,6912,0):ocfs2_fill_super:990 ERROR: superblock probe failed! (syz.1.561,6912,0):ocfs2_fill_super:1176 ERROR: status = -22