audit: type=1804 audit(1602915063.851:39): pid=11213 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir516042677/syzkaller.R55u7Y/67/bus" dev="sda1" ino=16041 res=1 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. ================================================================================ UBSAN: Undefined behaviour in net/sched/cls_tcindex.c:238:29 hfs: unable to parse mount options shift exponent 1383458439 is too large for 32-bit type 'int' CPU: 0 PID: 11243 Comm: syz-executor.3 Not tainted 4.19.150-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 valid_perfect_hash net/sched/cls_tcindex.c:238 [inline] tcindex_set_parms.cold+0x170/0x22f net/sched/cls_tcindex.c:398 tcindex_change+0x220/0x2f3 net/sched/cls_tcindex.c:518 tc_new_tfilter+0xb38/0x1570 net/sched/cls_api.c:1320 rtnetlink_rcv_msg+0x498/0xc10 net/core/rtnetlink.c:4778 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2455 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x717/0xcc0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xc7/0x130 net/socket.c:632 ___sys_sendmsg+0x3b3/0x8f0 net/socket.c:2115 __sys_sendmmsg+0x195/0x470 net/socket.c:2210 __do_sys_sendmmsg net/socket.c:2239 [inline] __se_sys_sendmmsg net/socket.c:2236 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2236 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45de59 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fefaba15c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000027f40 RCX: 000000000045de59 RDX: 04924924924926d3 RSI: 0000000020000200 RDI: 0000000000000007 RBP: 000000000118c0b8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118c07c R13: 00007ffc9a97701f R14: 00007fefaba169c0 R15: 000000000118c07c ================================================================================ SELinux: unrecognized netlink message: protocol=0 nlmsg_type=43 sclass=netlink_route_socket pid=11249 comm=syz-executor.3 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=11268 comm=syz-executor.1 Enabling of bearer rejected, failed to enable media TCP: request_sock_TCP: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. hfs: unable to parse mount options sp0: Synchronizing with TNC hpfs: bad mount options. sp0: Synchronizing with TNC device bond0 entered promiscuous mode print_req_error: I/O error, dev loop1, sector 64 device bond_slave_0 entered promiscuous mode print_req_error: I/O error, dev loop1, sector 256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 device bond_slave_1 entered promiscuous mode print_req_error: I/O error, dev loop1, sector 512 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed print_req_error: I/O error, dev loop1, sector 64 print_req_error: I/O error, dev loop1, sector 512 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 print_req_error: I/O error, dev loop1, sector 1024 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed print_req_error: I/O error, dev loop1, sector 64 print_req_error: I/O error, dev loop1, sector 1024 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 print_req_error: I/O error, dev loop1, sector 2048 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 hpfs: bad mount options. UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop1): udf_fill_super: No partition found (1) UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop1): udf_fill_super: No partition found (1) UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found batman_adv: Cannot find parent device UDF-fs: Scanning with blocksize 2048 failed print_req_error: 35 callbacks suppressed print_req_error: I/O error, dev loop1, sector 4096 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 batman_adv: batadv0: Adding interface: gretap4 print_req_error: I/O error, dev loop9, sector 64 print_req_error: I/O error, dev loop9, sector 2048 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 batman_adv: batadv0: The MTU of interface gretap4 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. UDF-fs: warning (device loop1): udf_load_vrs: No anchor found print_req_error: I/O error, dev loop9, sector 4096 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop1): udf_fill_super: No partition found (1) JFS: discard option not supported on device batman_adv: batadv0: Not using interface gretap4 (retrying later): interface not active jfs: Unrecognized mount option "smackfsfloor=/dev/autofs" or missing value UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) print_req_error: I/O error, dev loop1, sector 64 print_req_error: I/O error, dev loop1, sector 256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UBIFS error (pid: 11531): cannot open "/dev/loop2", error -22 netlink: 6 bytes leftover after parsing attributes in process `syz-executor.2'. print_req_error: I/O error, dev loop1, sector 512 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=17092 sclass=netlink_route_socket pid=11540 comm=syz-executor.4 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UBIFS error (pid: 11531): cannot open "/dev/loop2", error -22 UDF-fs: Scanning with blocksize 512 failed SELinux: unrecognized netlink message: protocol=0 nlmsg_type=17092 sclass=netlink_route_socket pid=11556 comm=syz-executor.4 print_req_error: I/O error, dev loop1, sector 64 print_req_error: I/O error, dev loop1, sector 512 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 print_req_error: I/O error, dev loop1, sector 1024 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 audit: type=1800 audit(1602915069.231:40): pid=11574 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.5" name="file0" dev="sda1" ino=16105 res=0 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop1): udf_fill_super: No partition found (1) UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop1): udf_fill_super: No partition found (1) IPVS: ftp: loaded support on port[0] = 21 kvm [11565]: vcpu0, guest rIP: 0xcc disabled perfctr wrmsr: 0xc2 data 0x89 IPVS: ftp: loaded support on port[0] = 21 kvm [11565]: vcpu0, guest rIP: 0xcc disabled perfctr wrmsr: 0xc2 data 0x63 kvm [11565]: vcpu0, guest rIP: 0xcc disabled perfctr wrmsr: 0xc2 data 0x0 kvm [11565]: vcpu0, guest rIP: 0xcc disabled perfctr wrmsr: 0xc2 data 0x1 kvm [11565]: vcpu0, guest rIP: 0xcc disabled perfctr wrmsr: 0xc2 data 0xb kvm [11565]: vcpu0, guest rIP: 0xcc disabled perfctr wrmsr: 0xc2 data 0x6e kvm [11565]: vcpu0, guest rIP: 0xcc disabled perfctr wrmsr: 0xc2 data 0x5b kvm [11565]: vcpu0, guest rIP: 0xcc disabled perfctr wrmsr: 0xc2 data 0xa9 kvm [11565]: vcpu0, guest rIP: 0xcc disabled perfctr wrmsr: 0xc2 data 0xba kvm [11565]: vcpu0, guest rIP: 0xcc disabled perfctr wrmsr: 0xc2 data 0xe7 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop1): udf_fill_super: No partition found (1) print_req_error: 21 callbacks suppressed print_req_error: I/O error, dev loop1, sector 64 print_req_error: I/O error, dev loop1, sector 256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=11793 comm=syz-executor.3 print_req_error: I/O error, dev loop1, sector 512 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed md: md0 stopped. print_req_error: I/O error, dev loop1, sector 64 print_req_error: I/O error, dev loop1, sector 512 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=11812 comm=syz-executor.3 audit: type=1800 audit(1602915073.591:41): pid=11793 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.3" name="bus" dev="sda1" ino=16128 res=0 print_req_error: I/O error, dev loop1, sector 1024 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 batman_adv: Cannot find parent device UDF-fs: warning (device loop1): udf_load_vrs: No anchor found audit: type=1804 audit(1602915073.611:42): pid=11818 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir472291996/syzkaller.M4cA9M/80/bus" dev="sda1" ino=16129 res=1 UDF-fs: Scanning with blocksize 1024 failed print_req_error: I/O error, dev loop1, sector 64 print_req_error: I/O error, dev loop1, sector 1024 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 print_req_error: I/O error, dev loop1, sector 2048 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 batman_adv: batadv0: Adding interface: gretap3 batman_adv: batadv0: The MTU of interface gretap3 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. audit: type=1804 audit(1602915073.761:43): pid=11818 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir472291996/syzkaller.M4cA9M/80/bus" dev="sda1" ino=16129 res=1 batman_adv: batadv0: Not using interface gretap3 (retrying later): interface not active UDF-fs: warning (device loop1): udf_load_vrs: No anchor found batman_adv: Cannot find parent device batman_adv: batadv0: Adding interface: gretap4 UDF-fs: Scanning with blocksize 2048 failed batman_adv: batadv0: The MTU of interface gretap4 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. print_req_error: I/O error, dev loop1, sector 64