================================================================================
UBSAN: Undefined behaviour in fs/ext4/super.c:3763:25
shift exponent 32 is too large for 32-bit type 'int'
CPU: 1 PID: 3858 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
 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:00007f0a78fe4a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f0a78fe4b20 RCX: 00000000004608aa
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f0a78fe4ae0
RBP: 00007f0a78fe4ae0 R08: 00007f0a78fe4b20 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000200 R15: 0000000020000040
================================================================================
addrtype_mt_checkentry_v1: 14 callbacks suppressed
xt_addrtype: ipv6 BLACKHOLE matching not supported
EXT4-fs (loop5): Invalid log block size: 32
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
xt_addrtype: ipv6 BLACKHOLE matching not supported
xt_addrtype: ipv6 BLACKHOLE matching not supported
EXT4-fs (loop5): Invalid log block size: 34
EXT4-fs (loop5): Invalid log block size: 34
xt_addrtype: ipv6 BLACKHOLE matching not supported
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
xt_addrtype: ipv6 BLACKHOLE matching not supported
EXT4-fs (loop5): Invalid log block size: 35
xt_addrtype: ipv6 BLACKHOLE matching not supported
EXT4-fs (loop5): Unsupported filesystem blocksize 4194304 (44 log_block_size)
xt_addrtype: ipv6 BLACKHOLE matching not supported
EXT4-fs (loop5): Unsupported filesystem blocksize 8388608 (45 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 8388608 (45 log_block_size)
xt_addrtype: ipv6 BLACKHOLE matching not supported
xt_addrtype: ipv6 BLACKHOLE matching not supported
xt_addrtype: ipv6 BLACKHOLE matching not supported
EXT4-fs (loop5): Unsupported filesystem blocksize 67108864 (48 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 67108864 (48 log_block_size)
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (61 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (62 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (62 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (63 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (63 log_block_size)
EXT4-fs (loop5): Invalid log block size: 64
EXT4-fs (loop5): Invalid log block size: 64
EXT4-fs (loop5): Unsupported filesystem blocksize 262144 (72 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 262144 (72 log_block_size)
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop5): Unsupported filesystem blocksize 4194304 (76 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 4194304 (76 log_block_size)
EXT4-fs (loop5): Invalid log block size: 96
EXT4-fs (loop5): Invalid log block size: 96
EXT4-fs (loop5): Unsupported filesystem blocksize 262144 (104 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 262144 (104 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 4194304 (108 log_block_size)
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop5): Unsupported filesystem blocksize 4194304 (108 log_block_size)
addrtype_mt_checkentry_v1: 13 callbacks suppressed
xt_addrtype: ipv6 BLACKHOLE matching not supported
EXT4-fs (loop5): Unsupported filesystem blocksize 1073741824 (116 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 1073741824 (116 log_block_size)
xt_addrtype: ipv6 BLACKHOLE matching not supported
xt_addrtype: ipv6 BLACKHOLE matching not supported
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (122 log_block_size)
xt_addrtype: ipv6 BLACKHOLE matching not supported
EXT4-fs (loop5): Invalid log block size: 128
xt_addrtype: ipv6 BLACKHOLE matching not supported
xt_addrtype: ipv6 BLACKHOLE matching not supported
EXT4-fs (loop5): Invalid log block size: 128
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop5): Unsupported filesystem blocksize 4194304 (140 log_block_size)
xt_addrtype: ipv6 BLACKHOLE matching not supported
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (218 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize -2147483648 (245 log_block_size)
xt_addrtype: ipv6 BLACKHOLE matching not supported
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (246 log_block_size)
xt_addrtype: ipv6 BLACKHOLE matching not supported
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (246 log_block_size)
xt_addrtype: ipv6 BLACKHOLE matching not supported
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (254 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (255 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (255 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (255 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (255 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (255 log_block_size)
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (255 log_block_size)
audit: type=1326 audit(1603115890.071:78): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4375 comm="syz-executor.4" exe="/root/syz-executor.4" sig=31 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0
EXT4-fs (loop5): Unsupported filesystem blocksize 0 (255 log_block_size)