print_req_error: I/O error, dev loop2, sector 0 EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed ADFS-fs: unrecognised mount option "*)#%}" or missing value INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 0 PID: 18491 Comm: syz-executor.0 Not tainted 4.14.224-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 register_lock_class+0x32b/0x1320 kernel/locking/lockdep.c:768 __lock_acquire+0x167/0x3f20 kernel/locking/lockdep.c:3378 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:160 skb_dequeue+0x1c/0x180 net/core/skbuff.c:2831 skb_queue_purge+0x21/0x30 net/core/skbuff.c:2869 l2cap_chan_del+0x56d/0x950 net/bluetooth/l2cap_core.c:637 l2cap_chan_close+0x103/0x870 net/bluetooth/l2cap_core.c:757 l2cap_sock_shutdown+0x2e7/0xc20 net/bluetooth/l2cap_sock.c:1160 l2cap_sock_release+0x77/0x280 net/bluetooth/l2cap_sock.c:1203 __sock_release+0xcd/0x2b0 net/socket.c:602 sock_close+0x15/0x20 net/socket.c:1139 __fput+0x25f/0x7a0 fs/file_table.c:210 task_work_run+0x11f/0x190 kernel/task_work.c:113 get_signal+0x18a3/0x1ca0 kernel/signal.c:2234 do_signal+0x7c/0x1550 arch/x86/kernel/signal.c:814 exit_to_usermode_loop+0x160/0x200 arch/x86/entry/common.c:160 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x465f69 RSP: 002b:00007fb7f9f1a188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: fffffffffffffffc RBX: 000000000056c158 RCX: 0000000000465f69 RDX: 000000000000000e RSI: 0000000020000000 RDI: 0000000000000004 RBP: 00000000004bfa8f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c158 R13: 00007fffde451acf R14: 00007fb7f9f1a300 R15: 0000000000022000 ISOFS: Unable to identify CD-ROM format. EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) print_req_error: I/O error, dev loop5, sector 0 EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated ISO 9660 Extensions: aX,쬂E=$՛IV5*5![^E4#kK EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed ISO 9660 Extensions: Microsoft Joliet Level 3 EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) ISOFS: unable to read i-node block EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated ISOFS: unable to read i-node block EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: aX,쬂E=$՛IV5*5![^E4#kK EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed ISOFS: unable to read i-node block ISOFS: unable to read i-node block ISO 9660 Extensions: aX,쬂E=$՛IV5*5![^E4#kK 9pnet: Insufficient options for proto=fd 9pnet: Insufficient options for proto=fd ISO 9660 Extensions: Microsoft Joliet Level 3 EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) ISOFS: unable to read i-node block ISOFS: unable to read i-node block ISOFS: unable to read i-node block EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated ISOFS: unable to read i-node block print_req_error: I/O error, dev loop3, sector 0 EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed ISO 9660 Extensions: aX,쬂E=$՛IV5*5![^E4#kK EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: unable to read i-node block ISOFS: unable to read i-node block ISO 9660 Extensions: Microsoft Joliet Level 3 isofs_fill_super: root inode is not a directory. Corrupted media? ISOFS: Unable to identify CD-ROM format. EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) ISO 9660 Extensions: aX,쬂E=$՛IV5*5![^E4#kK EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed ISO 9660 Extensions: Microsoft Joliet Level 3 isofs_fill_super: root inode is not a directory. Corrupted media? EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) ISOFS: unable to read i-node block isofs_fill_super: get root inode failed EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated print_req_error: I/O error, dev loop3, sector 0 EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: unable to read i-node block isofs_fill_super: get root inode failed isofs_fill_super: root inode is not a directory. Corrupted media? print_req_error: I/O error, dev loop3, sector 0 EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) print_req_error: I/O error, dev loop2, sector 0 ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: unable to read i-node block ISOFS: unable to read i-node block EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: unable to read i-node block ISOFS: unable to read i-node block ISOFS: Unable to identify CD-ROM format. EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) ISO 9660 Extensions: aX,쬂E=$՛IV5*5![^E4#kK EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed ISOFS: Unable to identify CD-ROM format. EXT4-fs (loop3): VFS: Can't find ext4 filesystem EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) ISO 9660 Extensions: aX,쬂E=$՛IV5*5![^E4#kK EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) ISO 9660 Extensions: aX,쬂E=$՛IV5*5![^E4#kK EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) ISO 9660 Extensions: aX,쬂E=$՛IV5*5![^E4#kK print_req_error: I/O error, dev loop1, sector 0 EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed ISO 9660 Extensions: aX,쬂E=$՛IV5*5![^E4#kK EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) EXT4-fs error (device loop4): ext4_fill_super:4365: inode #2: comm syz-executor.4: iget: root inode unallocated EXT4-fs (loop4): get root inode failed EXT4-fs (loop4): mount failed ISO 9660 Extensions: aX,쬂E=$՛IV5*5![^E4#kK EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) EXT4-fs (loop4): corrupt root inode, run e2fsck EXT4-fs (loop4): mount failed EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (11527!=0) EXT4-fs (loop4): corrupt root inode, run e2fsck EXT4-fs (loop4): mount failed