loop5: detected capacity change from 0 to 40427 F2FS-fs (loop5): Invalid Fs Meta Ino: node(0) meta(2) root(0) F2FS-fs (loop5): Can't find valid F2FS filesystem in 1th superblock ================================================================================ UBSAN: shift-out-of-bounds in fs/f2fs/super.c:942:5 shift exponent 116 is too large for 64-bit type 'unsigned long' CPU: 0 PID: 1019 Comm: syz.5.170 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:88 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106 dump_stack+0x15/0x24 lib/dump_stack.c:113 ubsan_epilogue+0xe/0x40 lib/ubsan.c:151 __ubsan_handle_shift_out_of_bounds+0x364/0x3f0 lib/ubsan.c:321 parse_options+0x4a47/0x4a50 fs/f2fs/super.c:943 f2fs_fill_super+0x2660/0x7380 fs/f2fs/super.c:4428 mount_bdev+0x29b/0x3d0 fs/super.c:1448 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632 vfs_get_tree+0x9a/0x270 fs/super.c:1578 do_new_mount+0x251/0xb40 fs/namespace.c:3081 path_mount+0x640/0xfd0 fs/namespace.c:3411 do_mount fs/namespace.c:3424 [inline] __do_sys_mount fs/namespace.c:3632 [inline] __se_sys_mount+0x320/0x390 fs/namespace.c:3609 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f93abf9f34a 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:00007f93ace85e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f93ace85ee0 RCX: 00007f93abf9f34a RDX: 0000200000000240 RSI: 0000200000000000 RDI: 00007f93ace85ea0 RBP: 0000200000000240 R08: 00007f93ace85ee0 R09: 000000000000400d R10: 000000000000400d R11: 0000000000000246 R12: 0000200000000000 R13: 00007f93ace85ea0 R14: 000000000000551d R15: 0000200000005c00 ================================================================================ F2FS-fs (loop5): Not support 4503599627370496, larger than 256 loop5: detected capacity change from 0 to 512 EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled EXT4-fs (loop5): feature flags set on rev 0 fs, running e2fsck is recommended Quota error (device loop5): do_insert_tree: Free block already used in tree: block 1 EXT4-fs error (device loop5): ext4_acquire_dquot:6828: comm syz.5.170: Failed to acquire dquot type 1 EXT4-fs (loop5): Remounting filesystem read-only EXT4-fs error (device loop5): ext4_mb_generate_buddy:1126: group 0, block bitmap and bg descriptor inconsistent: 46 vs 41 free clusters EXT4-fs (loop5): Remounting filesystem read-only EXT4-fs error (device loop5): ext4_do_update_inode:5281: inode #12: comm syz.5.170: corrupted inode contents EXT4-fs (loop5): Remounting filesystem read-only EXT4-fs error (device loop5): ext4_dirty_inode:6158: inode #12: comm syz.5.170: mark_inode_dirty error EXT4-fs (loop5): Remounting filesystem read-only EXT4-fs error (device loop5): ext4_do_update_inode:5281: inode #12: comm syz.5.170: corrupted inode contents EXT4-fs (loop5): Remounting filesystem read-only EXT4-fs error (device loop5): __ext4_ext_dirty:202: inode #12: comm syz.5.170: mark_inode_dirty error EXT4-fs (loop5): Remounting filesystem read-only EXT4-fs error (device loop5): ext4_do_update_inode:5281: inode #12: comm syz.5.170: corrupted inode contents EXT4-fs (loop5): Remounting filesystem read-only EXT4-fs error (device loop5) in ext4_orphan_del:303: Corrupt filesystem EXT4-fs (loop5): Remounting filesystem read-only EXT4-fs error (device loop5): ext4_do_update_inode:5281: inode #12: comm syz.5.170: corrupted inode contents EXT4-fs (loop5): Remounting filesystem read-only EXT4-fs error (device loop5): ext4_truncate:4327: inode #12: comm syz.5.170: mark_inode_dirty error EXT4-fs (loop5): Remounting filesystem read-only EXT4-fs error (device loop5) in ext4_process_orphan:345: Corrupt filesystem EXT4-fs (loop5): Remounting filesystem read-only EXT4-fs (loop5): 1 truncate cleaned up EXT4-fs error (device loop5): ext4_acquire_dquot:6828: comm syz.5.170: Failed to acquire dquot type 1 EXT4-fs (loop5): Remounting filesystem read-only