erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: read_super, device -> /dev/loop2
erofs: options -> 
================================================================================
UBSAN: Undefined behaviour in drivers/staging/erofs/super.c:122:3
shift exponent 34 is too large for 32-bit type 'int'
CPU: 0 PID: 17101 Comm: syz-executor.1 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
 superblock_read drivers/staging/erofs/super.c:122 [inline]
 erofs_read_super drivers/staging/erofs/super.c:356 [inline]
 erofs_fill_super+0x397/0x12fc drivers/staging/erofs/super.c:499
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
 mount_bdev+0x2fc/0x3b0 fs/super.c:1158
 erofs_mount+0x8c/0xc0 drivers/staging/erofs/super.c:512
 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
erofs: root inode @ nid 36
erofs: mounted on /dev/loop2 with opts: .
 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:00007fc67be5da88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fc67be5db20 RCX: 00000000004608aa
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc67be5dae0
RBP: 00007fc67be5dae0 R08: 00007fc67be5db20 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000200 R15: 0000000020010a00
================================================================================
erofs: blksize 4 isn't supported on this platform
audit: type=1804 audit(1602992379.290:197): pid=17121 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/207/cgroup.controllers" dev="sda1" ino=16452 res=1
erofs: read_super, device -> /dev/loop1
BTRFS info (device loop5): force zlib compression, level 3
erofs: options -> 
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
BTRFS info (device loop5): disk space caching is enabled
erofs: blksize 4 isn't supported on this platform
erofs: unmounted for /dev/loop2
BTRFS info (device loop5): has skinny extents
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: read_super, device -> /dev/loop2
erofs: options -> 
erofs: root inode @ nid 36
erofs: read_super, device -> /dev/loop1
erofs: mounted on /dev/loop2 with opts: .
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: options -> 
erofs: blksize 8388608 isn't supported on this platform
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: unmounted for /dev/loop2
BTRFS error (device loop5): open_ctree failed
audit: type=1804 audit(1602992380.010:198): pid=17179 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/208/cgroup.controllers" dev="sda1" ino=16452 res=1
IPVS: persistence engine module ip_vs_pe_Óip not found
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: blksize 8388608 isn't supported on this platform
BTRFS info (device loop5): force zlib compression, level 3
BTRFS info (device loop5): disk space caching is enabled
BTRFS info (device loop5): has skinny extents
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: read_super, device -> /dev/loop2
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop2 with opts: .
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: blksize 1073741824 isn't supported on this platform
erofs: unmounted for /dev/loop2
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: blksize 1073741824 isn't supported on this platform
erofs: read_super, device -> /dev/loop2
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: options -> 
BTRFS info (device loop5): force zlib compression, level 3
BTRFS info (device loop5): disk space caching is enabled
erofs: root inode @ nid 36
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: read_super, device -> /dev/loop1
BTRFS info (device loop5): has skinny extents
erofs: mounted on /dev/loop2 with opts: .
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop1 with opts: .
erofs: unmounted for /dev/loop2
erofs: unmounted for /dev/loop1
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: read_super, device -> /dev/loop1
erofs: read_super, device -> /dev/loop2
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop1 with opts: .
erofs: options -> 
audit: type=1804 audit(1602992381.170:199): pid=17295 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/209/cgroup.controllers" dev="sda1" ino=16463 res=1
erofs: root inode @ nid 36
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: unmounted for /dev/loop1
erofs: mounted on /dev/loop2 with opts: .
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
BTRFS info (device loop5): force zlib compression, level 3
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: root inode @ nid 36
BTRFS info (device loop5): disk space caching is enabled
erofs: mounted on /dev/loop1 with opts: .
erofs: unmounted for /dev/loop2
BTRFS info (device loop5): has skinny extents
audit: type=1804 audit(1602992381.570:200): pid=17326 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/210/cgroup.controllers" dev="sda1" ino=16457 res=1
erofs: unmounted for /dev/loop1
IPVS: persistence engine module ip_vs_pe_Óip not found
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: read_super, device -> /dev/loop2
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: root inode @ nid 36
erofs: options -> 
erofs: mounted on /dev/loop2 with opts: .
erofs: root inode @ nid 36
erofs: mounted on /dev/loop1 with opts: .
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: unmounted for /dev/loop2
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: unmounted for /dev/loop1
erofs: read_super, device -> /dev/loop2
erofs: options -> 
erofs: root inode @ nid 36
BTRFS info (device loop5): force zlib compression, level 3
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: mounted on /dev/loop2 with opts: .
erofs: read_super, device -> /dev/loop1
BTRFS info (device loop5): disk space caching is enabled
erofs: options -> 
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: unmounted for /dev/loop2
erofs: root inode @ nid 36
BTRFS info (device loop5): has skinny extents
erofs: mounted on /dev/loop1 with opts: .
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: unmounted for /dev/loop1
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: read_super, device -> /dev/loop2
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop2 with opts: .
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: root inode @ nid 36
audit: type=1804 audit(1602992382.730:201): pid=17439 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/212/cgroup.controllers" dev="sda1" ino=16459 res=1
erofs: unmounted for /dev/loop2
erofs: mounted on /dev/loop1 with opts: .
IPVS: persistence engine module ip_vs_pe_Óip not found
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: read_super, device -> /dev/loop2
erofs: options -> 
erofs: root inode @ nid 36
erofs: unmounted for /dev/loop1
erofs: mounted on /dev/loop2 with opts: .
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
BTRFS info (device loop5): force zlib compression, level 3
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
BTRFS info (device loop5): disk space caching is enabled
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: unmounted for /dev/loop2
BTRFS info (device loop5): has skinny extents
erofs: root inode @ nid 36
erofs: mounted on /dev/loop1 with opts: .
audit: type=1804 audit(1602992383.280:202): pid=17491 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/213/cgroup.controllers" dev="sda1" ino=16459 res=1
erofs: unmounted for /dev/loop1
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: read_super, device -> /dev/loop2
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop2 with opts: .
erofs: read_super, device -> /dev/loop1
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: options -> 
erofs: root inode @ nid 36
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: unmounted for /dev/loop2
erofs: mounted on /dev/loop1 with opts: .
erofs: unmounted for /dev/loop1
erofs: read_super, device -> /dev/loop2
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop2 with opts: .
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop1 with opts: .
audit: type=1804 audit(1602992384.030:203): pid=17560 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/214/cgroup.controllers" dev="sda1" ino=16471 res=1
erofs: unmounted for /dev/loop2
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: unmounted for /dev/loop1
audit: type=1804 audit(1602992384.340:204): pid=17580 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/215/cgroup.controllers" dev="sda1" ino=16448 res=1
erofs: read_super, device -> /dev/loop2
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: options -> 
erofs: root inode @ nid 36
erofs: root inode @ nid 36
erofs: mounted on /dev/loop2 with opts: .
erofs: mounted on /dev/loop1 with opts: .
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: unmounted for /dev/loop2
erofs: unmounted for /dev/loop1
erofs: read_super, device -> /dev/loop2
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: root inode @ nid 36
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop2 with opts: .
erofs: mounted on /dev/loop1 with opts: .
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: unmounted for /dev/loop2
erofs: unmounted for /dev/loop1
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop1 with opts: .
erofs: read_super, device -> /dev/loop2
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop2 with opts: .
erofs: unmounted for /dev/loop1
erofs: unmounted for /dev/loop2
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: read_super, device -> /dev/loop1
erofs: options -> 
BTRFS info (device loop5): force zlib compression, level 3
erofs: root inode @ nid 36
audit: type=1804 audit(1602992385.590:205): pid=17670 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/217/cgroup.controllers" dev="sda1" ino=16477 res=1
BTRFS info (device loop5): disk space caching is enabled
erofs: mounted on /dev/loop1 with opts: .
erofs: read_super, device -> /dev/loop2
erofs: options -> 
erofs: root inode @ nid 36
BTRFS info (device loop5): has skinny extents
erofs: mounted on /dev/loop2 with opts: .
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: unmounted for /dev/loop1
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: unmounted for /dev/loop2
BTRFS warning (device loop5): loop5 checksum verify failed on 5308416 wanted 77626DAF found D76EFA26 level 0
BTRFS warning (device loop5): failed to read root (objectid=4): -5
erofs: read_super, device -> /dev/loop1
BTRFS error (device loop5): open_ctree failed
erofs: options -> 
erofs: root inode @ nid 36
audit: type=1804 audit(1602992385.980:206): pid=17725 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/218/cgroup.controllers" dev="sda1" ino=16479 res=1
erofs: mounted on /dev/loop1 with opts: .
erofs: read_super, device -> /dev/loop2
erofs: options -> 
audit: type=1804 audit(1602992386.020:207): pid=17725 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/218/cgroup.controllers" dev="sda1" ino=16479 res=1
erofs: root inode @ nid 36
erofs: mounted on /dev/loop2 with opts: .
erofs: unmounted for /dev/loop1
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
BTRFS info (device loop5): force zlib compression, level 3
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
BTRFS info (device loop5): disk space caching is enabled
erofs: unmounted for /dev/loop2
BTRFS info (device loop5): has skinny extents
audit: type=1804 audit(1602992386.240:208): pid=17746 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/219/cgroup.controllers" dev="sda1" ino=16467 res=1
BTRFS warning (device loop5): loop5 checksum verify failed on 5308416 wanted 77626DAF found D76EFA26 level 0
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop1 with opts: .
BTRFS warning (device loop5): failed to read root (objectid=4): -5
BTRFS error (device loop5): open_ctree failed
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: read_super, device -> /dev/loop2
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop2 with opts: .
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: unmounted for /dev/loop1
erofs: unmounted for /dev/loop2
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop1 with opts: .
BTRFS info (device loop5): force zlib compression, level 3
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
BTRFS info (device loop5): disk space caching is enabled
erofs: unmounted for /dev/loop1
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
BTRFS info (device loop5): has skinny extents
erofs: read_super, device -> /dev/loop2
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop2 with opts: .
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
audit: type=1804 audit(1602992386.920:209): pid=17807 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/220/cgroup.controllers" dev="sda1" ino=16456 res=1
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop1 with opts: .
erofs: unmounted for /dev/loop1
erofs: unmounted for /dev/loop2
BTRFS warning (device loop5): loop5 checksum verify failed on 5308416 wanted 77626DAF found D76EFA26 level 0
BTRFS warning (device loop5): failed to read root (objectid=4): -5
audit: type=1804 audit(1602992387.211:210): pid=17841 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/221/cgroup.controllers" dev="sda1" ino=16467 res=1
BTRFS error (device loop5): open_ctree failed
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop1 with opts: .
erofs: read_super, device -> /dev/loop2
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop2 with opts: .
BTRFS info (device loop5): force zlib compression, level 3
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
BTRFS info (device loop5): disk space caching is enabled
erofs: unmounted for /dev/loop1
BTRFS info (device loop5): has skinny extents
erofs: unmounted for /dev/loop2
erofs: read_super, device -> /dev/loop1
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: options -> 
erofs: root inode @ nid 36
erofs: read_super, device -> /dev/loop2
erofs: mounted on /dev/loop1 with opts: .
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: options -> 
BTRFS warning (device loop5): loop5 checksum verify failed on 5308416 wanted 77626DAF found D76EFA26 level 0
audit: type=1804 audit(1602992387.841:211): pid=17897 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/222/cgroup.controllers" dev="sda1" ino=16477 res=1
erofs: root inode @ nid 36
BTRFS warning (device loop5): failed to read root (objectid=4): -5
erofs: mounted on /dev/loop2 with opts: .
BTRFS error (device loop5): open_ctree failed
erofs: unmounted for /dev/loop2
erofs: unmounted for /dev/loop1
erofs: read_super, device -> /dev/loop2
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: options -> 
erofs: read_super, device -> /dev/loop1
erofs: root inode @ nid 36
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: options -> 
erofs: mounted on /dev/loop2 with opts: .
erofs: root inode @ nid 36
erofs: mounted on /dev/loop1 with opts: .
BTRFS info (device loop5): force zlib compression, level 3
BTRFS info (device loop5): disk space caching is enabled
BTRFS info (device loop5): has skinny extents
erofs: unmounted for /dev/loop1
erofs: unmounted for /dev/loop2
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
audit: type=1804 audit(1602992388.531:212): pid=17945 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir556196068/syzkaller.PgoqYx/223/cgroup.controllers" dev="sda1" ino=16486 res=1
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: read_super, device -> /dev/loop1
erofs: options -> 
erofs: root inode @ nid 36
BTRFS warning (device loop5): loop5 checksum verify failed on 5308416 wanted 77626DAF found D76EFA26 level 0
erofs: mounted on /dev/loop1 with opts: .
BTRFS warning (device loop5): failed to read root (objectid=4): -5
erofs: read_super, device -> /dev/loop2
BTRFS error (device loop5): open_ctree failed
erofs: options -> 
erofs: root inode @ nid 36
erofs: mounted on /dev/loop2 with opts: .
erofs: unmounted for /dev/loop1
erofs: unmounted for /dev/loop2
BTRFS info (device loop5): force zlib compression, level 3
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
BTRFS info (device loop5): disk space caching is enabled
UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found!
erofs: read_super, device -> /dev/loop1
BTRFS info (device loop5): has skinny extents
erofs: options ->