================================================================================ UBSAN: Undefined behaviour in net/sched/sch_api.c:561:7 shift exponent 116 is too large for 32-bit type 'int' CPU: 0 PID: 18367 Comm: syz-executor.2 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 __qdisc_calculate_pkt_len+0x3bb/0x570 net/sched/sch_api.c:561 qdisc_calculate_pkt_len include/net/sch_generic.h:697 [inline] __dev_xmit_skb net/core/dev.c:3443 [inline] __dev_queue_xmit+0x1370/0x2ec0 net/core/dev.c:3807 neigh_hh_output include/net/neighbour.h:491 [inline] neigh_output include/net/neighbour.h:499 [inline] ip6_finish_output2+0xe78/0x2370 net/ipv6/ip6_output.c:120 ip6_finish_output+0x610/0xcc0 net/ipv6/ip6_output.c:154 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip6_output+0x205/0x7c0 net/ipv6/ip6_output.c:171 dst_output include/net/dst.h:455 [inline] ip6_local_out+0xaf/0x170 net/ipv6/output_core.c:178 ip6_send_skb+0xb3/0x300 net/ipv6/ip6_output.c:1699 udp_v6_send_skb+0x7d6/0x16e0 net/ipv6/udp.c:1114 udpv6_sendmsg+0x2406/0x2b90 net/ipv6/udp.c:1411 inet_sendmsg+0x174/0x640 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xc7/0x130 net/socket.c:632 __sys_sendto+0x21a/0x320 net/socket.c:1787 __do_sys_sendto net/socket.c:1799 [inline] __se_sys_sendto net/socket.c:1795 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1795 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:00007f09f86b1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 000000000002e8c0 RCX: 000000000045de59 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 000000000118bf78 R08: 00000000200000c0 R09: 000000000000001c R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffe36cedc0f R14: 00007f09f86b29c0 R15: 000000000118bf2c ================================================================================ ================================================================================ UBSAN: Undefined behaviour in net/sched/sch_api.c:569:10 shift exponent 181 is too large for 32-bit type 'int' CPU: 0 PID: 18367 Comm: syz-executor.2 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 __qdisc_calculate_pkt_len+0x370/0x570 net/sched/sch_api.c:569 qdisc_calculate_pkt_len include/net/sch_generic.h:697 [inline] __dev_xmit_skb net/core/dev.c:3443 [inline] __dev_queue_xmit+0x1370/0x2ec0 net/core/dev.c:3807 neigh_hh_output include/net/neighbour.h:491 [inline] neigh_output include/net/neighbour.h:499 [inline] ip6_finish_output2+0xe78/0x2370 net/ipv6/ip6_output.c:120 ip6_finish_output+0x610/0xcc0 net/ipv6/ip6_output.c:154 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip6_output+0x205/0x7c0 net/ipv6/ip6_output.c:171 dst_output include/net/dst.h:455 [inline] ip6_local_out+0xaf/0x170 net/ipv6/output_core.c:178 ip6_send_skb+0xb3/0x300 net/ipv6/ip6_output.c:1699 udp_v6_send_skb+0x7d6/0x16e0 net/ipv6/udp.c:1114 udpv6_sendmsg+0x2406/0x2b90 net/ipv6/udp.c:1411 inet_sendmsg+0x174/0x640 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xc7/0x130 net/socket.c:632 __sys_sendto+0x21a/0x320 net/socket.c:1787 __do_sys_sendto net/socket.c:1799 [inline] __se_sys_sendto net/socket.c:1795 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1795 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:00007f09f86b1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 000000000002e8c0 RCX: 000000000045de59 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 000000000118bf78 R08: 00000000200000c0 R09: 000000000000001c R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffe36cedc0f R14: 00007f09f86b29c0 R15: 000000000118bf2c ================================================================================ TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. audit: type=1804 audit(1603316801.223:41): pid=18451 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir709698842/syzkaller.T3fkf4/497/bus" dev="sda1" ino=16707 res=1 audit: type=1804 audit(1603316801.273:42): pid=18451 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.3" name="/root/syzkaller-testdir709698842/syzkaller.T3fkf4/497/bus" dev="sda1" ino=16707 res=1 audit: type=1804 audit(1603316801.283:43): pid=18451 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir709698842/syzkaller.T3fkf4/497/bus" dev="sda1" ino=16707 res=1 audit: type=1804 audit(1603316801.313:44): pid=18451 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.3" name="/root/syzkaller-testdir709698842/syzkaller.T3fkf4/497/bus" dev="sda1" ino=16707 res=1 EXT4-fs (loop3): Ignoring removed bh option EXT4-fs (loop3): mounted filesystem without journal. Opts: resgid=0x000000000000ee00,bh,,errors=continue EXT4-fs (loop3): Ignoring removed bh option EXT4-fs (loop3): mounted filesystem without journal. Opts: resgid=0x000000000000ee00,bh,,errors=continue EXT4-fs (loop3): Ignoring removed bh option EXT4-fs (loop3): mounted filesystem without journal. Opts: resgid=0x000000000000ee00,bh,,errors=continue EXT4-fs (loop3): Ignoring removed bh option EXT4-fs (loop3): mounted filesystem without journal. Opts: resgid=0x000000000000ee00,bh,,errors=continue audit: type=1400 audit(1603316807.433:45): avc: denied { ioctl } for pid=18979 comm="syz-executor.4" path="socket:[59396]" dev="sockfs" ino=59396 ioctlcmd=0x8933 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 audit: type=1800 audit(1603316807.633:46): pid=19006 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="file0" dev="sda1" ino=16743 res=0 netlink: 28 bytes leftover after parsing attributes in process `syz-executor.0'. audit: type=1800 audit(1603316807.673:47): pid=19006 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="file0" dev="sda1" ino=16743 res=0 netlink: 28 bytes leftover after parsing attributes in process `syz-executor.0'. EXT4-fs (loop3): Ignoring removed bh option EXT4-fs (loop3): bad geometry: block count 256 exceeds size of device (12 blocks) netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. EXT4-fs (loop3): Ignoring removed bh option EXT4-fs (loop3): bad geometry: block count 256 exceeds size of device (12 blocks) netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. EXT4-fs (loop3): Ignoring removed bh option EXT4-fs (loop3): bad geometry: block count 256 exceeds size of device (12 blocks) EXT4-fs (loop3): Ignoring removed bh option EXT4-fs (loop3): bad geometry: block count 256 exceeds size of device (12 blocks) EXT4-fs (loop3): Ignoring removed bh option EXT4-fs (loop3): bad geometry: block count 256 exceeds size of device (12 blocks) EXT4-fs (loop3): Ignoring removed bh option EXT4-fs (loop3): bad geometry: block count 256 exceeds size of device (12 blocks) EXT4-fs (loop3): Ignoring removed bh option EXT4-fs error (device loop3): ext4_fill_super:4448: inode #2: comm syz-executor.3: iget: root inode unallocated EXT4-fs (loop3): get root inode failed EXT4-fs (loop3): mount failed