WARNING: can't dereference registers at 00000000000002bb for ip retint_user+0x8/0x18
ptrace attach of "/root/syz-executor.4"[12656] was attempted by "/root/syz-executor.4"[12659]
hrtimer: interrupt took 42938 ns
audit: type=1804 audit(1608033559.059:9): pid=12763 uid=0 auid=0 ses=4 op="invalid_pcr" cause="open_writers" comm="syz-executor.1" name="/root/syzkaller-testdir177646637/syzkaller.5XUFha/160/file1/bus" dev="loop1" ino=10 res=1
audit: type=1804 audit(1608033559.109:10): pid=12763 uid=0 auid=0 ses=4 op="invalid_pcr" cause="open_writers" comm="syz-executor.1" name="/root/syzkaller-testdir177646637/syzkaller.5XUFha/160/file1/bus" dev="loop1" ino=10 res=1
ptrace attach of "/root/syz-executor.5"[12782] was attempted by "/root/syz-executor.5"[12830]
FAT-fs (loop4): bogus number of FAT structure
FAT-fs (loop4): This doesn't look like a DOS 1.x volume; DOS 2.x BPB is non-zero
FAT-fs (loop4): Can't find a valid FAT filesystem
block nbd1: Receive control failed (result -107)
block nbd1: shutting down sockets
block nbd1: Receive control failed (result -107)
block nbd1: Device being setup by another task
block nbd1: Device being setup by another task
audit: type=1804 audit(1608033565.230:11): pid=13146 uid=0 auid=0 ses=4 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir473069874/syzkaller.eLbZG1/190/bus" dev="sda1" ino=16235 res=1
audit: type=1804 audit(1608033565.480:12): pid=13155 uid=0 auid=0 ses=4 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir473069874/syzkaller.eLbZG1/190/bus" dev="sda1" ino=16235 res=1
audit: type=1804 audit(1608033565.990:13): pid=13182 uid=0 auid=0 ses=4 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir473069874/syzkaller.eLbZG1/191/bus" dev="sda1" ino=16257 res=1
audit: type=1804 audit(1608033566.170:14): pid=13206 uid=0 auid=0 ses=4 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir473069874/syzkaller.eLbZG1/192/bus" dev="sda1" ino=16245 res=1