audit: type=1804 audit(1603180403.854:20): pid=11960 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir034236671/syzkaller.kF962i/241/file1/bus" dev="sda1" ino=16138 res=1 FAT-fs (loop4): Unrecognized mount option "./bus" or missing value ================================================================================ UBSAN: Undefined behaviour in ./include/net/red.h:272:18 shift exponent 253 is too large for 64-bit type 'long unsigned int' CPU: 0 PID: 11962 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 red_calc_qavg_from_idle_time include/net/red.h:272 [inline] red_calc_qavg include/net/red.h:313 [inline] red_enqueue+0x2064/0x2200 net/sched/sch_red.c:68 __dev_xmit_skb net/core/dev.c:3494 [inline] __dev_queue_xmit+0x14e1/0x2ec0 net/core/dev.c:3807 neigh_resolve_output+0x55a/0x950 net/core/neighbour.c:1374 neigh_output include/net/neighbour.h:501 [inline] ip6_finish_output2+0x1184/0x2370 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 ip6_push_pending_frames+0xdd/0x100 net/ipv6/ip6_output.c:1719 rawv6_push_pending_frames net/ipv6/raw.c:618 [inline] rawv6_sendmsg+0x2b79/0x37e0 net/ipv6/raw.c:959 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_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:00007ff2dd58fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000027f00 RCX: 000000000045de59 RDX: 0400000000000107 RSI: 0000000020008440 RDI: 0000000000000004 RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffddacac9af R14: 00007ff2dd5909c0 R15: 000000000118bf2c ================================================================================ audit: type=1804 audit(1603180404.324:21): pid=11940 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir034236671/syzkaller.kF962i/241/file1/file1/bus" dev="sda1" ino=16139 res=1 audit: type=1804 audit(1603180404.324:22): pid=11960 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir034236671/syzkaller.kF962i/241/file1/file1/bus" dev="sda1" ino=16139 res=1 device lo entered promiscuous mode F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop4): Can't find valid F2FS filesystem in 1th superblock attempt to access beyond end of device loop4: rw=12288, want=4104, limit=20 attempt to access beyond end of device loop4: rw=12288, want=8200, limit=20 F2FS-fs (loop4): Failed to get valid F2FS checkpoint F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop4): Can't find valid F2FS filesystem in 1th superblock attempt to access beyond end of device loop4: rw=12288, want=4104, limit=20 attempt to access beyond end of device loop4: rw=12288, want=8200, limit=20 F2FS-fs (loop4): Failed to get valid F2FS checkpoint F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop4): Can't find valid F2FS filesystem in 1th superblock attempt to access beyond end of device loop4: rw=12288, want=4104, limit=20 attempt to access beyond end of device loop4: rw=12288, want=8200, limit=20 F2FS-fs (loop4): Failed to get valid F2FS checkpoint F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0) attempt to access beyond end of device loop4: rw=12288, want=4104, limit=20 attempt to access beyond end of device loop4: rw=12288, want=8200, limit=20 pic_ioport_write: 137 callbacks suppressed kvm: pic: level sensitive irq not supported kvm: pic: level sensitive irq not supported pic_ioport_write: 179 callbacks suppressed kvm: pic: single mode not supported kvm: pic: single mode not supported kvm: pic: level sensitive irq not supported kvm: pic: level sensitive irq not supported kvm: pic: level sensitive irq not supported Enabling of bearer rejected, failed to enable media Enabling of bearer rejected, failed to enable media Enabling of bearer rejected, failed to enable media kvm: pic: level sensitive irq not supported kvm: pic: level sensitive irq not supported kvm: pic: single mode not supported kvm: pic: single mode not supported kvm: pic: level sensitive irq not supported kvm: pic: level sensitive irq not supported kvm: pic: level sensitive irq not supported team0: Device ipvlan1 failed to register rx_handler REISERFS warning (device loop2): super-6502 reiserfs_getopt: unknown mount option "00000000000000000000003" kvm: pic: single mode not supported kvm: pic: single mode not supported kvm: vcpu 0: requested 128 ns lapic timer period limited to 200000 ns REISERFS warning (device loop2): super-6502 reiserfs_getopt: unknown mount option "00000000000000000000003" team0: Device ipvlan1 failed to register rx_handler kvm: pic: single mode not supported kvm: pic: single mode not supported netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. kvm: vcpu 0: requested 128 ns lapic timer period limited to 200000 ns kvm: pic: single mode not supported kvm: pic: single mode not supported netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. device wlan1 entered promiscuous mode device wlan1 left promiscuous mode device wlan1 entered promiscuous mode 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. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=12317 comm=syz-executor.1 netlink: 44 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 44 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 44 bytes leftover after parsing attributes in process `syz-executor.1'. audit: type=1804 audit(1603180411.805:23): pid=12372 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir121482131/syzkaller.LxXysH/233/file0" dev="sda1" ino=16180 res=1 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21