netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'. ================================================================================ UBSAN: Undefined behaviour in net/sched/sch_api.c:375:22 shift exponent 255 is too large for 32-bit type 'int' CPU: 1 PID: 21687 Comm: syz-executor.0 Not tainted 4.19.152-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 __detect_linklayer net/sched/sch_api.c:375 [inline] qdisc_get_rtab.cold+0x1d/0x8e net/sched/sch_api.c:421 tbf_change+0x99d/0x1230 net/sched/sch_tbf.c:325 tbf_init+0x91/0xc4 net/sched/sch_tbf.c:433 qdisc_create+0x534/0x1080 net/sched/sch_api.c:1155 tc_modify_qdisc+0x4c0/0x195b net/sched/sch_api.c:1571 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+0x7bb/0x8f0 net/socket.c:2115 __sys_sendmsg net/socket.c:2153 [inline] __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2160 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:00007f09dfbd5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000002e600 RCX: 000000000045de59 RDX: 0000000000000000 RSI: 0000000020000800 RDI: 0000000000000004 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffeecc7e4bf R14: 00007f09dfbd69c0 R15: 000000000118bf2c ================================================================================ net_ratelimit: 24 callbacks suppressed sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::918:700:0 sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::918:700:0 sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::b00:700:0 sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::b00:700:0 sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::f00:700:0 sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::f00:700:0 ================================================================================ UBSAN: Undefined behaviour in net/sched/sch_api.c:376:24 shift exponent 255 is too large for 32-bit type 'int' CPU: 0 PID: 21687 Comm: syz-executor.0 Not tainted 4.19.152-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 __detect_linklayer net/sched/sch_api.c:376 [inline] qdisc_get_rtab.cold+0x7f/0x8e net/sched/sch_api.c:421 tbf_change+0x99d/0x1230 net/sched/sch_tbf.c:325 tbf_init+0x91/0xc4 net/sched/sch_tbf.c:433 qdisc_create+0x534/0x1080 net/sched/sch_api.c:1155 tc_modify_qdisc+0x4c0/0x195b net/sched/sch_api.c:1571 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+0x7bb/0x8f0 net/socket.c:2115 __sys_sendmsg net/socket.c:2153 [inline] __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2160 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:00007f09dfbd5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000002e600 RCX: 000000000045de59 RDX: 0000000000000000 RSI: 0000000020000800 RDI: 0000000000000004 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffeecc7e4bf R14: 00007f09dfbd69c0 R15: 000000000118bf2c ================================================================================ sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::1709:700:0 sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::1709:700:0 sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::1809:700:0 sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::1809:700:0 sch_tbf: burst 0 is lower than device lo mtu (115) ! netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'. sch_tbf: burst 0 is lower than device lo mtu (115) ! netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'. IPVS: sync thread started: state = BACKUP, mcast_ifn = gre0, syncid = 0, id = 0 netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. batman_adv: batadv0: Adding interface: veth3 batman_adv: batadv0: The MTU of interface veth3 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 veth3 (retrying later): interface not active batman_adv: batadv0: Removing interface: veth3 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 netlink: 'syz-executor.5': attribute type 61 has an invalid length. netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 'syz-executor.5': attribute type 61 has an invalid length. xt_CT: You must specify a L4 protocol and not use inversions on it netlink: 'syz-executor.5': attribute type 61 has an invalid length. kauditd_printk_skb: 4 callbacks suppressed audit: type=1804 audit(1602969575.863:40): pid=21875 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-testdir260238429/syzkaller.iVemol/637/bus" dev="sda1" ino=17159 res=1 net_ratelimit: 23 callbacks suppressed TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'. sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::6000:700:0 audit: type=1804 audit(1602969575.903:41): pid=21875 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-testdir260238429/syzkaller.iVemol/637/bus" dev="sda1" ino=17159 res=1 sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::6000:700:0 audit: type=1804 audit(1602969575.963:42): pid=21872 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-testdir260238429/syzkaller.iVemol/637/bus" dev="sda1" ino=17159 res=1 Unknown ioctl 9216 Unknown ioctl 9216 sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::6300:700:0 audit: type=1804 audit(1602969575.963:43): pid=21872 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-testdir260238429/syzkaller.iVemol/637/bus" dev="sda1" ino=17159 res=1 sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::6300:700:0 EXT4-fs (loop1): warning: mounting unchecked fs, running e2fsck is recommended netlink: 'syz-executor.5': attribute type 61 has an invalid length. EXT4-fs error (device loop1): ext4_orphan_get:1257: comm syz-executor.1: bad orphan inode 1116 netlink: 'syz-executor.5': attribute type 61 has an invalid length. EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::2:d9dc:700:0 sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::2:d9dc:700:0 netlink: 'syz-executor.1': attribute type 61 has an invalid length. sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::100:0:700:0 sit: Dst spoofed 172.30.0.4/:: -> 224.0.0.1/2002::100:0:700:0 netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'. sit: Dst spoofed 172.30.0.6/:: -> 224.0.0.1/2002::700:0 Cannot find add_set index 0 as target Cannot find add_set index 0 as target MINIX-fs: mounting unchecked file system, running fsck is recommended netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 'syz-executor.5': attribute type 61 has an invalid length. netlink: 'syz-executor.5': attribute type 61 has an invalid length. netlink: 'syz-executor.1': attribute type 61 has an invalid length. netlink: 'syz-executor.1': attribute type 61 has an invalid length. netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 'syz-executor.0': attribute type 1 has an invalid length. ================================================================================ UBSAN: Undefined behaviour in drivers/vhost/vhost.c:116:62 load of value 245 is not a valid value for type '_Bool' CPU: 1 PID: 22126 Comm: syz-executor.1 Not tainted 4.19.152-syzkaller #0