================================================================================ UBSAN: Undefined behaviour in fs/f2fs/super.c:2227:16 shift exponent 55 is too large for 32-bit type 'int' CPU: 0 PID: 14623 Comm: syz-executor.5 Not tainted 4.19.146-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422 sanity_check_raw_super fs/f2fs/super.c:2227 [inline] read_raw_super_block fs/f2fs/super.c:2631 [inline] f2fs_fill_super.cold+0x1f9/0x5fb fs/f2fs/super.c:2842 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x318 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x51c/0x2f10 fs/namespace.c:2799 ksys_mount+0xcf/0x130 fs/namespace.c:3015 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3026 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x46004a Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 da 89 fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007f4792928a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f4792928b20 RCX: 000000000046004a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f4792928ae0 RBP: 00007f4792928ae0 R08: 00007f4792928b20 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 0000000020000200 R15: 0000000020014b00 ================================================================================ EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue FAT-fs (loop2): Directory bread(block 1097764) failed FAT-fs (loop2): Directory bread(block 1097765) failed FAT-fs (loop2): Directory bread(block 1097766) failed FAT-fs (loop2): Directory bread(block 1097767) failed FAT-fs (loop2): Directory bread(block 1097768) failed FAT-fs (loop2): Directory bread(block 1097769) failed FAT-fs (loop2): Directory bread(block 1097770) failed FAT-fs (loop2): Directory bread(block 1097771) failed FAT-fs (loop2): Directory bread(block 1097772) failed FAT-fs (loop2): Directory bread(block 1097773) failed F2FS-fs (loop5): Invalid blocksize (8388608), supports only 4KB F2FS-fs (loop5): Can't find valid F2FS filesystem in 1th superblock F2FS-fs (loop5): Found nat_bits in checkpoint F2FS-fs (loop5): Mounted with checkpoint version = 7ad43cd7 F2FS-fs (loop5): Invalid blocksize (2147483648), supports only 4KB EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue F2FS-fs (loop5): Can't find valid F2FS filesystem in 1th superblock FAT-fs (loop2): Directory bread(block 1098788) failed FAT-fs (loop2): Directory bread(block 1098789) failed F2FS-fs (loop5): Found nat_bits in checkpoint FAT-fs (loop2): Directory bread(block 1098790) failed FAT-fs (loop2): Directory bread(block 1098791) failed FAT-fs (loop2): Directory bread(block 1098792) failed FAT-fs (loop2): Directory bread(block 1098793) failed FAT-fs (loop2): Directory bread(block 1098794) failed FAT-fs (loop2): Directory bread(block 1098795) failed FAT-fs (loop2): Directory bread(block 1098796) failed FAT-fs (loop2): Directory bread(block 1098797) failed EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue F2FS-fs (loop5): Mounted with checkpoint version = 7ad43cd7 EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue FAT-fs (loop2): Directory bread(block 1099812) failed F2FS-fs (loop5): Invalid blocksize (1073741824), supports only 4KB FAT-fs (loop2): Directory bread(block 1099813) failed FAT-fs (loop2): Directory bread(block 1099814) failed FAT-fs (loop2): Directory bread(block 1099815) failed FAT-fs (loop2): Directory bread(block 1099816) failed FAT-fs (loop2): Directory bread(block 1099817) failed FAT-fs (loop2): Directory bread(block 1099818) failed EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue FAT-fs (loop2): Directory bread(block 1099819) failed FAT-fs (loop2): Directory bread(block 1099820) failed FAT-fs (loop2): Directory bread(block 1099821) failed FAT-fs (loop2): Directory bread(block 1100836) failed FAT-fs (loop2): Directory bread(block 1100837) failed EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue FAT-fs (loop2): Directory bread(block 1100838) failed FAT-fs (loop2): Directory bread(block 1100839) failed FAT-fs (loop2): Directory bread(block 1100840) failed FAT-fs (loop2): Directory bread(block 1100841) failed FAT-fs (loop2): Directory bread(block 1100842) failed FAT-fs (loop2): Directory bread(block 1100843) failed FAT-fs (loop2): Directory bread(block 1100844) failed FAT-fs (loop2): Directory bread(block 1100845) failed EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue FAT-fs (loop2): Directory bread(block 1101860) failed FAT-fs (loop2): Directory bread(block 1101861) failed FAT-fs (loop2): Directory bread(block 1101862) failed FAT-fs (loop2): Directory bread(block 1101863) failed FAT-fs (loop2): Directory bread(block 1101864) failed FAT-fs (loop2): Directory bread(block 1101865) failed FAT-fs (loop2): Directory bread(block 1101866) failed FAT-fs (loop2): Directory bread(block 1101867) failed FAT-fs (loop2): Directory bread(block 1101868) failed FAT-fs (loop2): Directory bread(block 1101869) failed FAT-fs (loop2): Directory bread(block 1102884) failed FAT-fs (loop2): Directory bread(block 1102885) failed FAT-fs (loop2): Directory bread(block 1102886) failed FAT-fs (loop2): Directory bread(block 1102887) failed EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue FAT-fs (loop2): Directory bread(block 1102888) failed FAT-fs (loop2): Directory bread(block 1102889) failed FAT-fs (loop2): Directory bread(block 1102890) failed FAT-fs (loop2): Directory bread(block 1102891) failed FAT-fs (loop2): Directory bread(block 1102892) failed FAT-fs (loop2): Directory bread(block 1102893) failed EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue FAT-fs (loop2): Directory bread(block 1103908) failed FAT-fs (loop2): Directory bread(block 1103909) failed EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue FAT-fs (loop2): Directory bread(block 1103910) failed f2fs_msg: 19 callbacks suppressed F2FS-fs (loop5): Invalid log sectors per block(393219) log sectorsize(9) FAT-fs (loop2): Directory bread(block 1103911) failed F2FS-fs (loop5): Can't find valid F2FS filesystem in 1th superblock FAT-fs (loop2): Directory bread(block 1103912) failed FAT-fs (loop2): Directory bread(block 1103913) failed FAT-fs (loop2): Directory bread(block 1103914) failed FAT-fs (loop2): Directory bread(block 1103915) failed F2FS-fs (loop5): Found nat_bits in checkpoint FAT-fs (loop2): Directory bread(block 1103916) failed FAT-fs (loop2): Directory bread(block 1103917) failed EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue F2FS-fs (loop5): Mounted with checkpoint version = 7ad43cd7 FAT-fs (loop2): Directory bread(block 1310756) failed FAT-fs (loop2): Directory bread(block 1310757) failed FAT-fs (loop2): Directory bread(block 1310758) failed FAT-fs (loop2): Directory bread(block 1310759) failed FAT-fs (loop2): Directory bread(block 1310760) failed FAT-fs (loop2): Directory bread(block 1310761) failed FAT-fs (loop2): Directory bread(block 1310762) failed FAT-fs (loop2): Directory bread(block 1310763) failed FAT-fs (loop2): Directory bread(block 1310764) failed FAT-fs (loop2): Directory bread(block 1310765) failed EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue F2FS-fs (loop5): Invalid log sectors per block(458755) log sectorsize(9) FAT-fs (loop2): Directory bread(block 1572900) failed F2FS-fs (loop5): Can't find valid F2FS filesystem in 1th superblock FAT-fs (loop2): Directory bread(block 1572901) failed EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue FAT-fs (loop2): Directory bread(block 1572902) failed F2FS-fs (loop5): Found nat_bits in checkpoint FAT-fs (loop2): Directory bread(block 1572903) failed FAT-fs (loop2): Directory bread(block 1572904) failed FAT-fs (loop2): Directory bread(block 1572905) failed FAT-fs (loop2): Directory bread(block 1572906) failed FAT-fs (loop2): Directory bread(block 1572907) failed FAT-fs (loop2): Directory bread(block 1572908) failed F2FS-fs (loop5): Mounted with checkpoint version = 7ad43cd7 FAT-fs (loop2): Directory bread(block 1572909) failed EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue F2FS-fs (loop5): Invalid log sectors per block(589827) log sectorsize(9) FAT-fs (loop2): Directory bread(block 1835044) failed FAT-fs (loop2): Directory bread(block 1835045) failed F2FS-fs (loop5): Can't find valid F2FS filesystem in 1th superblock FAT-fs (loop2): Directory bread(block 1835046) failed FAT-fs (loop2): Directory bread(block 1835047) failed FAT-fs (loop2): Directory bread(block 1835048) failed FAT-fs (loop2): Directory bread(block 1835049) failed FAT-fs (loop2): Directory bread(block 1835050) failed FAT-fs (loop2): Directory bread(block 1835051) failed EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue FAT-fs (loop2): Directory bread(block 1835052) failed FAT-fs (loop2): Directory bread(block 1835053) failed FAT-fs (loop2): count of clusters too big (301990398) FAT-fs (loop2): Can't find a valid FAT filesystem FAT-fs (loop2): count of clusters too big (301990398) FAT-fs (loop2): Can't find a valid FAT filesystem EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue FAT-fs (loop2): count of clusters too big (469762558) FAT-fs (loop2): Can't find a valid FAT filesystem EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue