INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 18866 Comm: syz-executor.1 Not tainted 4.19.181-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+0x1fc/0x2ef lib/dump_stack.c:118
 assign_lock_key kernel/locking/lockdep.c:727 [inline]
 register_lock_class+0xe76/0x11c0 kernel/locking/lockdep.c:753
 __lock_acquire+0x17d/0x3ff0 kernel/locking/lockdep.c:3303
 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3907
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:152
 skb_dequeue+0x1c/0x180 net/core/skbuff.c:2834
 skb_queue_purge+0x21/0x30 net/core/skbuff.c:2872
 l2cap_chan_del+0x690/0xa50 net/bluetooth/l2cap_core.c:637
 l2cap_chan_close+0x1b5/0x950 net/bluetooth/l2cap_core.c:757
 l2cap_sock_shutdown+0x339/0xe10 net/bluetooth/l2cap_sock.c:1159
 l2cap_sock_release+0x77/0x290 net/bluetooth/l2cap_sock.c:1202
 __sock_release+0xcd/0x2a0 net/socket.c:579
 sock_close+0x15/0x20 net/socket.c:1140
 __fput+0x2ce/0x890 fs/file_table.c:278
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 get_signal+0x1b64/0x1f70 kernel/signal.c:2400
 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:821
 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x466459
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f17bfcfb188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: fffffffffffffffc RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 000000000000000e RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00000000004bf9cb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffcac0b42bf R14: 00007f17bfcfb300 R15: 0000000000022000
BTRFS info (device loop5): disk space caching is enabled
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
BTRFS info (device loop5): has skinny extents
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
UDF-fs: Scanning with blocksize 4096 failed
BTRFS info (device loop5): disk space caching is enabled
BTRFS info (device loop5): has skinny extents
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
BTRFS info (device loop5): disk space caching is enabled
UDF-fs: Scanning with blocksize 4096 failed
BTRFS info (device loop5): has skinny extents
f2fs_msg: 6 callbacks suppressed
F2FS-fs (loop2): Found nat_bits in checkpoint
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 512 failed
F2FS-fs (loop2): Mounted with checkpoint version = cabf472
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
UDF-fs: Scanning with blocksize 4096 failed
F2FS-fs (loop2): Found nat_bits in checkpoint
BTRFS info (device loop5): disk space caching is enabled
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 512 failed
BTRFS info (device loop5): has skinny extents
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
UDF-fs: Scanning with blocksize 4096 failed
F2FS-fs (loop2): Mounted with checkpoint version = cabf472
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
F2FS-fs (loop2): Found nat_bits in checkpoint
UDF-fs: Scanning with blocksize 4096 failed
BTRFS info (device loop5): disk space caching is enabled
BTRFS info (device loop5): has skinny extents
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
F2FS-fs (loop2): Mounted with checkpoint version = cabf472
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
Bluetooth: hci3: command 0x0405 tx timeout
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
UDF-fs: Scanning with blocksize 4096 failed
F2FS-fs (loop2): Found nat_bits in checkpoint
F2FS-fs (loop2): Mounted with checkpoint version = cabf472
BTRFS info (device loop5): disk space caching is enabled
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
BTRFS info (device loop5): has skinny extents
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
F2FS-fs (loop2): Found nat_bits in checkpoint
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
F2FS-fs (loop2): Mounted with checkpoint version = cabf472
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
UDF-fs: Scanning with blocksize 4096 failed
audit: type=1800 audit(1616104101.499:331): pid=19270 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="file0" dev="sda1" ino=14927 res=0
audit: type=1804 audit(1616104101.539:332): pid=19270 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir598979313/syzkaller.pY5mZ0/251/file0" dev="sda1" ino=14927 res=1
audit: type=1804 audit(1616104101.539:333): pid=19270 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir598979313/syzkaller.pY5mZ0/251/file0" dev="sda1" ino=14927 res=1
audit: type=1804 audit(1616104101.609:334): pid=19273 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir598979313/syzkaller.pY5mZ0/251/file0" dev="sda1" ino=14927 res=1
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
audit: type=1804 audit(1616104101.609:335): pid=19270 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir598979313/syzkaller.pY5mZ0/251/file0" dev="sda1" ino=14927 res=1
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
BTRFS info (device loop5): disk space caching is enabled
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
BTRFS info (device loop5): has skinny extents
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
UDF-fs: Scanning with blocksize 4096 failed
audit: type=1804 audit(1616104102.369:336): pid=19331 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir598979313/syzkaller.pY5mZ0/251/file0" dev="sda1" ino=14927 res=1
audit: type=1804 audit(1616104102.419:337): pid=19270 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir598979313/syzkaller.pY5mZ0/251/file0" dev="sda1" ino=14927 res=1
BTRFS info (device loop5): disk space caching is enabled
BTRFS info (device loop5): has skinny extents
audit: type=1804 audit(1616104102.419:338): pid=19273 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir598979313/syzkaller.pY5mZ0/251/file0" dev="sda1" ino=14927 res=1
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
audit: type=1804 audit(1616104102.419:339): pid=19273 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir598979313/syzkaller.pY5mZ0/251/file0" dev="sda1" ino=14927 res=1
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
audit: type=1804 audit(1616104102.419:340): pid=19273 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir598979313/syzkaller.pY5mZ0/251/file0" dev="sda1" ino=14927 res=1
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
BTRFS info (device loop5): disk space caching is enabled
UDF-fs: Scanning with blocksize 2048 failed
BTRFS info (device loop5): has skinny extents
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
UDF-fs: Scanning with blocksize 4096 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
UDF-fs: Scanning with blocksize 4096 failed
BTRFS info (device loop5): disk space caching is enabled
BTRFS info (device loop5): has skinny extents
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
f2fs_msg: 9 callbacks suppressed
F2FS-fs (loop2): Mounted with checkpoint version = cabf472
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
UDF-fs: Scanning with blocksize 4096 failed
BTRFS info (device loop5): disk space caching is enabled
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
BTRFS info (device loop5): has skinny extents
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
F2FS-fs (loop2): Found nat_bits in checkpoint
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
F2FS-fs (loop2): Mounted with checkpoint version = cabf472
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
UDF-fs: Scanning with blocksize 4096 failed
BTRFS info (device loop5): disk space caching is enabled
BTRFS info (device loop5): has skinny extents
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
F2FS-fs (loop2): Found nat_bits in checkpoint
BTRFS info (device loop5): disk space caching is enabled
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
BTRFS info (device loop5): has skinny extents
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
F2FS-fs (loop2): Mounted with checkpoint version = cabf472
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
UDF-fs: Scanning with blocksize 4096 failed
F2FS-fs (loop2): Found nat_bits in checkpoint
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
BTRFS info (device loop5): disk space caching is enabled
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
BTRFS info (device loop5): has skinny extents
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
F2FS-fs (loop2): Mounted with checkpoint version = cabf472
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
UDF-fs: Scanning with blocksize 4096 failed
F2FS-fs (loop2): Found nat_bits in checkpoint
F2FS-fs (loop2): Mounted with checkpoint version = cabf472
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
kauditd_printk_skb: 35 callbacks suppressed
audit: type=1800 audit(1616104107.659:376): pid=19762 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="file0" dev="sda1" ino=14951 res=0
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
BTRFS info (device loop5): disk space caching is enabled
audit: type=1804 audit(1616104107.679:377): pid=19762 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir735185820/syzkaller.73oQp0/259/file0" dev="sda1" ino=14951 res=1
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
BTRFS info (device loop5): has skinny extents
F2FS-fs (loop2): Found nat_bits in checkpoint
UDF-fs: Scanning with blocksize 512 failed
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
audit: type=1804 audit(1616104107.689:378): pid=19762 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.3" name="/root/syzkaller-testdir735185820/syzkaller.73oQp0/259/file0" dev="sda1" ino=14951 res=1
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
audit: type=1804 audit(1616104107.719:379): pid=19762 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir735185820/syzkaller.73oQp0/259/file0" dev="sda1" ino=14951 res=1
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 1024 failed
audit: type=1804 audit(1616104107.719:380): pid=19762 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.3" name="/root/syzkaller-testdir735185820/syzkaller.73oQp0/259/file0" dev="sda1" ino=14951 res=1
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
BTRFS info (device loop5): disk space caching is enabled
BTRFS info (device loop5): has skinny extents
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found