F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0)
F2FS-fs (loop4): Can't find valid F2FS filesystem in 1th superblock
================================================================================
UBSAN: Undefined behaviour in fs/f2fs/super.c:2227:16
shift exponent 2792747054 is too large for 32-bit type 'int'
CPU: 1 PID: 8576 Comm: syz-executor.4 Not tainted 4.19.150-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: 0033:0x4608aa
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ad 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 8a 89 fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007ffbfafd8a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffbfafd8b20 RCX: 00000000004608aa
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffbfafd8ae0
RBP: 00007ffbfafd8ae0 R08: 00007ffbfafd8b20 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000200 R15: 0000000020000040
================================================================================
F2FS-fs (loop4): Invalid blocksize (16384), supports only 4KB

F2FS-fs (loop4): Can't find valid F2FS filesystem in 2th superblock
F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0)
F2FS-fs (loop4): Can't find valid F2FS filesystem in 1th superblock
F2FS-fs (loop4): Invalid blocksize (16384), supports only 4KB

F2FS-fs (loop4): Can't find valid F2FS filesystem in 2th superblock
FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
SELinux: security_context_str_to_sid(sysadm_u) failed for (dev loop5, type msdos) errno=-22
FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
SELinux: security_context_str_to_sid(sysadm_u) failed for (dev loop5, type msdos) errno=-22
F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0)
EXT4-fs (loop2): Unrecognized mount option "journa" or missing value
F2FS-fs (loop4): Can't find valid F2FS filesystem in 1th superblock
EXT4-fs (loop2): Unrecognized mount option "journa" or missing value
FAT-fs (loop3): Unrecognized mount option "dmas‚=00000000000000000000000" or missing value
audit: type=1804 audit(1602379877.921:18): pid=8813 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir572517403/syzkaller.Y4ZoYw/21/bus" dev="sda1" ino=15858 res=1
FAT-fs (loop3): Unrecognized mount option "dmas‚=00000000000000000000000" or missing value
f2fs_msg: 78 callbacks suppressed
F2FS-fs (loop2): Magic Mismatch, valid(0xf2f52010) - read(0x0)
BTRFS: device fsid d681b030-ddfd-468c-bf7e-7a9b9838e384 devid 1 transid 7 /dev/loop3
F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0)
BTRFS info (device loop3): disk space caching is enabled
F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
F2FS-fs (loop4): Can't find valid F2FS filesystem in 1th superblock
BTRFS info (device loop3): has skinny extents
F2FS-fs (loop2): Invalid blocksize (16384), supports only 4KB

F2FS-fs (loop4): Invalid blocksize (16384), supports only 4KB

F2FS-fs (loop2): Can't find valid F2FS filesystem in 2th superblock
F2FS-fs (loop4): Can't find valid F2FS filesystem in 2th superblock
F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0)
F2FS-fs (loop2): Magic Mismatch, valid(0xf2f52010) - read(0x0)
isofs_fill_super: root inode is not a directory. Corrupted media?
sctp: [Deprecated]: syz-executor.2 (pid 8932) Use of int in max_burst socket option deprecated.
Use struct sctp_assoc_value instead
isofs_fill_super: root inode is not a directory. Corrupted media?
sctp: [Deprecated]: syz-executor.2 (pid 8941) Use of int in max_burst socket option deprecated.
Use struct sctp_assoc_value instead
isofs_fill_super: root inode is not a directory. Corrupted media?
isofs_fill_super: root inode is not a directory. Corrupted media?
isofs_fill_super: root inode is not a directory. Corrupted media?
audit: type=1800 audit(1602379880.211:19): pid=8994 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.3" name="bus" dev="sda1" ino=15853 res=0
isofs_fill_super: root inode is not a directory. Corrupted media?
isofs_fill_super: root inode is not a directory. Corrupted media?
isofs_fill_super: root inode is not a directory. Corrupted media?
isofs_fill_super: root inode is not a directory. Corrupted media?
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.