loop0: detected capacity change from 0 to 40427 ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in fs/f2fs/super.c:3951:27 shift exponent 4294967287 is too large for 64-bit type 'sector_t' (aka 'unsigned long long') CPU: 1 UID: 0 PID: 5835 Comm: syz.0.10 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 ubsan_epilogue+0xa/0x30 lib/ubsan.c:233 __ubsan_handle_shift_out_of_bounds+0x36d/0x400 lib/ubsan.c:494 __f2fs_commit_super+0x43e/0x4d0 fs/f2fs/super.c:3951 sanity_check_area_boundary+0x7c5/0xe20 fs/f2fs/super.c:4041 sanity_check_raw_super fs/f2fs/super.c:4222 [inline] read_raw_super_block fs/f2fs/super.c:4630 [inline] f2fs_fill_super+0x19cf/0x7d50 fs/f2fs/super.c:5165 get_tree_bdev_flags+0x430/0x4f0 fs/super.c:1883 vfs_get_tree+0x92/0x2a0 fs/super.c:1943 fc_mount fs/namespace.c:1278 [inline] do_new_mount_fc fs/namespace.c:3885 [inline] do_new_mount+0x325/0xb00 fs/namespace.c:3961 do_mount fs/namespace.c:4325 [inline] __do_sys_mount fs/namespace.c:4540 [inline] __se_sys_mount+0x31d/0x420 fs/namespace.c:4517 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f237c59f44a Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f237d3b7e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f237d3b7ee0 RCX: 00007f237c59f44a RDX: 0000200000000040 RSI: 0000200000000000 RDI: 00007f237d3b7ea0 RBP: 0000200000000040 R08: 00007f237d3b7ee0 R09: 000000000020001e R10: 000000000020001e R11: 0000000000000246 R12: 0000200000000000 R13: 00007f237d3b7ea0 R14: 0000000000005548 R15: 0000200000005840 ---[ end trace ]---