============================= UDF-fs: error (device loop5): udf_read_tagged: tag checksum failed, block 99: 0x27 != 0x4d UDF-fs: error (device loop5): udf_process_sequence: Block 99 of volume descriptor sequence is corrupted or we could not read it UDF-fs: error (device loop5): udf_process_sequence: Block 1984 of volume descriptor sequence is corrupted or we could not read it UDF-fs: error (device loop5): udf_read_tagged: tag version 0x0000 != 0x0002 || 0x0003, block 0 WARNING: suspicious RCU usage UDF-fs: error (device loop4): udf_process_sequence: Block 1984 of volume descriptor sequence is corrupted or we could not read it UDF-fs: error (device loop5): udf_read_tagged: tag version 0x0000 != 0x0002 || 0x0003, block 0 4.14.307-syzkaller #0 Not tainted UDF-fs: error (device loop4): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop5): udf_read_tagged: tag version 0x0000 != 0x0002 || 0x0003, block 0 ----------------------------- UDF-fs: error (device loop5): udf_read_tagged: tag version 0x0000 != 0x0002 || 0x0003, block 0 net/sched/act_sample.c:95 suspicious rcu_dereference_protected() usage! UDF-fs: error (device loop5): udf_read_tagged: read failed, block=512, location=512 other info that might help us debug this: UDF-fs: error (device loop5): udf_read_tagged: tag version 0x0000 != 0x0002 || 0x0003, block 0 rcu_scheduler_active = 2, debug_locks = 1 UDF-fs: error (device loop5): udf_read_tagged: tag version 0x0000 != 0x0002 || 0x0003, block 0 1 lock held by syz-executor.2/9789: UDF-fs: error (device loop5): udf_read_tagged: read failed, block=256, location=256 #0: (rtnl_mutex){+.+.}, at: [] rtnl_lock net/core/rtnetlink.c:72 [inline] #0: (rtnl_mutex){+.+.}, at: [] rtnetlink_rcv_msg+0x31d/0xb10 net/core/rtnetlink.c:4317 UDF-fs: error (device loop5): udf_read_tagged: tag version 0x0000 != 0x0002 || 0x0003, block 0 UDF-fs: error (device loop5): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop5): udf_read_tagged: tag version 0x0000 != 0x0002 || 0x0003, block 0 stack backtrace: UDF-fs: error (device loop5): udf_read_tagged: tag version 0x0000 != 0x0002 || 0x0003, block 0 UDF-fs: warning (device loop5): udf_fill_super: No partition found (1) CPU: 1 PID: 9789 Comm: syz-executor.2 Not tainted 4.14.307-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 tcf_sample_init+0x71c/0x8c0 net/sched/act_sample.c:95 tcf_action_init_1+0x51a/0x9e0 net/sched/act_api.c:691 tcf_action_init+0x26d/0x400 net/sched/act_api.c:760 tcf_action_add net/sched/act_api.c:1088 [inline] tc_ctl_action+0x2e3/0x510 net/sched/act_api.c:1140 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4322 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2461 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x651/0xbc0 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7fec46f380f9 RSP: 002b:00007fec454aa168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fec47057f80 RCX: 00007fec46f380f9 RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000003 RBP: 00007fec46f93ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcc0a1db8f R14: 00007fec454aa300 R15: 0000000000022000 EXT4-fs (loop4): Unsupported blocksize for fs encryption EXT4-fs (loop5): couldn't mount RDWR because of unsupported optional features (8000) EXT4-fs (loop2): can't mount with dioread_nolock if block size != PAGE_SIZE audit: type=1326 audit(1677515530.921:7): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=9891 comm="syz-executor.5" exe="/root/syz-executor.5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f6d219950f9 code=0x0 EXT4-fs (loop2): Unsupported blocksize for fs encryption print_req_error: I/O error, dev loop2, sector 0 Buffer I/O error on dev loop2, logical block 0, async page read print_req_error: I/O error, dev loop2, sector 6 Buffer I/O error on dev loop2, logical block 3, async page read sctp: [Deprecated]: syz-executor.0 (pid 9957) Use of int in maxseg socket option. Use struct sctp_assoc_value instead L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree hfs: request for non-existent node 131072 in B*Tree