netlink: 'syz-executor.5': attribute type 5 has an invalid length. IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready ================================================================================ UBSAN: Undefined behaviour in net/netfilter/ipset/ip_set_hash_gen.h:125:6 shift exponent 32 is too large for 32-bit type 'unsigned int' CPU: 1 PID: 17997 Comm: syz-executor.2 Not tainted 4.19.148-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 IPv6: ADDRCONF(NETDEV_CHANGE): tunl0: link becomes ready ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422 IPv6: ADDRCONF(NETDEV_CHANGE): gre0: link becomes ready htable_bits net/netfilter/ipset/ip_set_hash_gen.h:125 [inline] hash_ipmark_create.cold+0x19/0x27 net/netfilter/ipset/ip_set_hash_gen.h:1290 IPv6: ADDRCONF(NETDEV_CHANGE): gretap0: link becomes ready ip_set_create+0x70e/0x1380 net/netfilter/ipset/ip_set_core.c:940 IPv6: ADDRCONF(NETDEV_CHANGE): erspan0: link becomes ready nfnetlink_rcv_msg+0xeff/0x1210 net/netfilter/nfnetlink.c:233 IPv6: ADDRCONF(NETDEV_CHANGE): ip_vti0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): ip6_vti0: link becomes ready netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2455 nfnetlink_rcv+0x1b2/0x41b net/netfilter/nfnetlink.c:565 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 sock_no_sendpage+0xf5/0x140 net/core/sock.c:2668 kernel_sendpage net/socket.c:3378 [inline] sock_sendpage+0xdf/0x140 net/socket.c:847 pipe_to_sendpage+0x268/0x330 fs/splice.c:452 splice_from_pipe_feed fs/splice.c:503 [inline] __splice_from_pipe+0x3af/0x820 fs/splice.c:627 splice_from_pipe fs/splice.c:662 [inline] generic_splice_sendpage+0xd4/0x140 fs/splice.c:833 do_splice_from fs/splice.c:852 [inline] do_splice fs/splice.c:1154 [inline] __do_sys_splice fs/splice.c:1428 [inline] __se_sys_splice+0xf31/0x15f0 fs/splice.c:1408 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45dd99 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:00007f823d006c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 0000000000033ec0 RCX: 000000000045dd99 RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 000000000118bf78 R08: 0000000100000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007fffdf55055f R14: 00007f823d0079c0 R15: 000000000118bf2c ================================================================================ netlink: 'syz-executor.5': attribute type 5 has an invalid length. UDF-fs: error (device loop4): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop4): udf_read_tagged: read failed, block=512, location=512 IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready UDF-fs: warning (device loop4): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop4): udf_read_tagged: read failed, block=256, location=256 IPv6: ADDRCONF(NETDEV_CHANGE): tunl0: link becomes ready UDF-fs: error (device loop4): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop4): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop4): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop4): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop4): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed IPv6: ADDRCONF(NETDEV_CHANGE): gre0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): gretap0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): erspan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): ip_vti0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): ip6_vti0: link becomes ready netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): tunl0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): gre0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): gretap0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): erspan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): ip_vti0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): ip6_vti0: link becomes ready netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 10 bytes leftover after parsing attributes in process `syz-executor.2'. batman_adv: batadv0: Adding interface: veth13 batman_adv: batadv0: The MTU of interface veth13 is too small (1500) 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. batman_adv: batadv0: Not using interface veth13 (retrying later): interface not active input: syz0 as /devices/virtual/input/input6 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. batman_adv: batadv0: Adding interface: veth15 batman_adv: batadv0: The MTU of interface veth15 is too small (1500) 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. batman_adv: batadv0: Not using interface veth15 (retrying later): interface not active netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. batman_adv: batadv0: Adding interface: veth17 batman_adv: batadv0: The MTU of interface veth17 is too small (1500) 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. batman_adv: batadv0: Not using interface veth17 (retrying later): interface not active netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 'syz-executor.5': attribute type 27 has an invalid length. batman_adv: batadv0: Adding interface: veth19 batman_adv: batadv0: The MTU of interface veth19 is too small (1500) 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. batman_adv: batadv0: Not using interface veth19 (retrying later): interface not active batman_adv: batadv0: Removing interface: veth19 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. batman_adv: batadv0: Adding interface: veth19 batman_adv: batadv0: The MTU of interface veth19 is too small (1500) 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. batman_adv: batadv0: Not using interface veth19 (retrying later): interface not active batman_adv: batadv0: Removing interface: veth19 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. batman_adv: batadv0: Adding interface: veth19 batman_adv: batadv0: The MTU of interface veth19 is too small (1500) 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. batman_adv: batadv0: Not using interface veth19 (retrying later): interface not active netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. IPv6: ADDRCONF(NETDEV_UP): bond1: link is not ready 8021q: adding VLAN 0 to HW filter on device bond1 batman_adv: batadv0: Removing interface: veth19 audit: type=1800 audit(1601355648.927:60): pid=18228 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.2" name="bus" dev="sda1" ino=15810 res=0 audit: type=1800 audit(1601355648.927:61): pid=18273 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="sda1" ino=15810 res=0 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. batman_adv: batadv0: Adding interface: veth19 batman_adv: batadv0: The MTU of interface veth19 is too small (1500) 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. batman_adv: batadv0: Not using interface veth19 (retrying later): interface not active batman_adv: batadv0: Removing interface: veth19 IPv6: ADDRCONF(NETDEV_UP): bond2: link is not ready 8021q: adding VLAN 0 to HW filter on device bond2 batman_adv: batadv0: Adding interface: veth19 batman_adv: batadv0: The MTU of interface veth19 is too small (1500) 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. batman_adv: batadv0: Not using interface veth19 (retrying later): interface not active batman_adv: batadv0: Removing interface: veth19 IPv6: ADDRCONF(NETDEV_UP): bond3: link is not ready 8021q: adding VLAN 0 to HW filter on device bond3 nla_parse: 4 callbacks suppressed netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. batman_adv: batadv0: Adding interface: veth19 batman_adv: batadv0: The MTU of interface veth19 is too small (1500) 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. batman_adv: batadv0: Not using interface veth19 (retrying later): interface not active batman_adv: batadv0: Removing interface: veth19 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. IPv6: ADDRCONF(NETDEV_UP): bond4: link is not ready 8021q: adding VLAN 0 to HW filter on device bond4 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. batman_adv: batadv0: Adding interface: veth19 batman_adv: batadv0: The MTU of interface veth19 is too small (1500) 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. batman_adv: batadv0: Not using interface veth19 (retrying later): interface not active batman_adv: batadv0: Removing interface: veth19 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. IPv6: ADDRCONF(NETDEV_UP): bond5: link is not ready 8021q: adding VLAN 0 to HW filter on device bond5 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. IPv6: ADDRCONF(NETDEV_UP): bond6: link is not ready 8021q: adding VLAN 0 to HW filter on device bond6 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. batman_adv: batadv0: Adding interface: veth19 batman_adv: batadv0: The MTU of interface veth19 is too small (1500) 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. batman_adv: batadv0: Not using interface veth19 (retrying later): interface not active netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. batman_adv: batadv0: Removing interface: veth19 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. IPv6: ADDRCONF(NETDEV_UP): bond7: link is not ready 8021q: adding VLAN 0 to HW filter on device bond7 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. batman_adv: batadv0: Adding interface: veth19 batman_adv: batadv0: The MTU of interface veth19 is too small (1500) 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.