================================================================================
UBSAN: Undefined behaviour in fs/ext4/super.c:3763:25
shift exponent 4294967280 is too large for 32-bit type 'int'
CPU: 1 PID: 11969 Comm: syz-executor.5 Not tainted 4.19.152-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
 ext4_fill_super.cold+0x33b/0x4ea fs/ext4/super.c:3763
 mount_bdev+0x2fc/0x3b0 fs/super.c:1158
EXT4-fs (loop2): revision level too high, forcing read-only mode
 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
EXT4-fs (loop2): mounting with "discard" option, but the device does not support discard
EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
 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:00007f7ca1036a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f7ca1036b20 RCX: 00000000004608aa
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f7ca1036ae0
RBP: 00007f7ca1036ae0 R08: 00007f7ca1036b20 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000300 R15: 0000000020013800
================================================================================
EXT4-fs (loop5): Unsupported filesystem blocksize 67108864 (-16 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 67108864 (-16 log_block_size)
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=12025 comm=syz-executor.2
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=12056 comm=syz-executor.3
EXT4-fs (loop2): warning: mounting fs with errors, running e2fsck is recommended
EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=12097 comm=syz-executor.3
x_tables: duplicate underflow at hook 2
x_tables: duplicate underflow at hook 3
nla_parse: 10 callbacks suppressed
netlink: 56 bytes leftover after parsing attributes in process `syz-executor.3'.
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=12148 comm=syz-executor.1
netlink: 56 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 52 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 52 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'.
EXT4-fs (loop1): warning: mounting unchecked fs, running e2fsck is recommended
EXT4-fs (loop1): failed to initialize system zone (-117)
EXT4-fs (loop1): mount failed
EXT4-fs (loop1): warning: mounting unchecked fs, running e2fsck is recommended
EXT4-fs (loop1): failed to initialize system zone (-117)
EXT4-fs (loop1): mount failed
wlan1: mtu less than device minimum
EXT4-fs (loop1): warning: mounting unchecked fs, running e2fsck is recommended
EXT4-fs (loop1): failed to initialize system zone (-117)
EXT4-fs (loop1): mount failed
netlink: 'syz-executor.0': attribute type 4 has an invalid length.
netlink: 17 bytes leftover after parsing attributes in process `syz-executor.0'.
EXT4-fs (loop1): warning: mounting unchecked fs, running e2fsck is recommended
netlink: 'syz-executor.0': attribute type 4 has an invalid length.
EXT4-fs (loop1): failed to initialize system zone (-117)
netlink: 17 bytes leftover after parsing attributes in process `syz-executor.0'.
EXT4-fs (loop1): mount failed
IPVS: ftp: loaded support on port[0] = 21
EXT4-fs (loop4): unsupported inode size: 143
EXT4-fs (loop4): blocksize: 1024
EXT4-fs (loop1): warning: mounting unchecked fs, running e2fsck is recommended
EXT4-fs (loop1): failed to initialize system zone (-117)
EXT4-fs (loop1): mount failed
IPVS: ftp: loaded support on port[0] = 21
audit: type=1326 audit(1603238935.657:47): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=12408 comm="syz-executor.3" exe="/root/syz-executor.3" sig=31 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0
netlink: 'syz-executor.2': attribute type 4 has an invalid length.
netlink: 17 bytes leftover after parsing attributes in process `syz-executor.2'.
IPVS: ftp: loaded support on port[0] = 21
audit: type=1326 audit(1603238936.267:48): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=12408 comm="syz-executor.3" exe="/root/syz-executor.3" sig=31 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0
EXT4-fs (loop1): bad geometry: block count 256 exceeds size of device (70 blocks)
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=12543 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=12548 comm=syz-executor.0
netlink: 'syz-executor.5': attribute type 3 has an invalid length.
netlink: 'syz-executor.5': attribute type 3 has an invalid length.
EXT4-fs (loop1): bad geometry: block count 256 exceeds size of device (70 blocks)
IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
netlink: 932 bytes leftover after parsing attributes in process `syz-executor.4'.
EXT4-fs (loop1): bad geometry: block count 256 exceeds size of device (70 blocks)
IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.5'.
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.5'.
EXT4-fs error (device loop1): ext4_fill_super:4448: inode #2: comm syz-executor.1: iget: root inode unallocated
EXT4-fs (loop4): warning: mounting unchecked fs, running e2fsck is recommended
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop1): mount failed
EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
EXT4-fs error (device loop1): ext4_fill_super:4448: inode #2: comm syz-executor.1: iget: root inode unallocated
EXT4-fs (loop1): get root inode failed
IPVS: ftp: loaded support on port[0] = 21
EXT4-fs (loop1): mount failed
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=12821 comm=syz-executor.0
EXT4-fs error (device loop1): ext4_fill_super:4448: inode #2: comm syz-executor.1: iget: root inode unallocated
EXT4-fs (loop1): get root inode failed
IPVS: ftp: loaded support on port[0] = 21
EXT4-fs (loop1): mount failed