[ 40.919895] audit: type=1800 audit(1576779113.817:31): pid=7656 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 45.683069] kauditd_printk_skb: 3 callbacks suppressed [ 45.683085] audit: type=1400 audit(1576779118.637:35): avc: denied { map } for pid=7832 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.109' (ECDSA) to the list of known hosts. [ 52.323630] audit: type=1400 audit(1576779125.277:36): avc: denied { map } for pid=7844 comm="syz-executor293" path="/root/syz-executor293974622" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 52.344656] IPVS: ftp: loaded support on port[0] = 21 [ 52.378027] audit: type=1400 audit(1576779125.327:37): avc: denied { create } for pid=7845 comm="syz-executor293" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 52.403634] audit: type=1400 audit(1576779125.327:38): avc: denied { write } for pid=7845 comm="syz-executor293" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 52.428224] audit: type=1400 audit(1576779125.327:39): avc: denied { read } for pid=7845 comm="syz-executor293" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 52.477232] chnl_net:caif_netlink_parms(): no params data found [ 52.512365] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.519061] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.526337] device bridge_slave_0 entered promiscuous mode [ 52.533859] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.540374] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.547597] device bridge_slave_1 entered promiscuous mode [ 52.564331] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 52.573493] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 52.589280] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 52.597160] team0: Port device team_slave_0 added [ 52.602985] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 52.610187] team0: Port device team_slave_1 added [ 52.615894] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 52.623568] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 52.702684] device hsr_slave_0 entered promiscuous mode [ 52.771904] device hsr_slave_1 entered promiscuous mode [ 52.811750] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 52.818862] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 52.833684] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.840115] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.847386] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.853781] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.885354] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 52.892624] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.902651] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 52.911664] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.930432] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.938135] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.946324] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 52.957615] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 52.964211] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.973537] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.981568] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.987922] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.011730] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.019315] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.025727] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.033450] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.041647] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.049240] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.058015] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.067896] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 53.078637] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready executing program [ 53.085457] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.093034] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.106886] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 53.114808] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.122135] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 53.134263] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.181091] ------------[ cut here ]------------ [ 53.186035] net/hsr/hsr_forward.c:366: Malformed frame (port_src hsr0) [ 53.193425] WARNING: CPU: 1 PID: 7845 at net/hsr/hsr_forward.c:365 hsr_forward_skb+0x122f/0x1c10 [ 53.202363] Kernel panic - not syncing: panic_on_warn set ... [ 53.202363] [ 53.209738] CPU: 1 PID: 7845 Comm: syz-executor293 Not tainted 4.19.90-syzkaller #0 [ 53.217516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.226871] Call Trace: [ 53.229456] dump_stack+0x197/0x210 [ 53.233095] panic+0x26a/0x50e [ 53.236274] ? __warn_printk+0xf3/0xf3 [ 53.240250] ? hsr_forward_skb+0x122f/0x1c10 [ 53.244646] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.250183] ? __warn.cold+0x5/0x53 [ 53.253825] ? __warn+0xe8/0x1d0 [ 53.257208] ? hsr_forward_skb+0x122f/0x1c10 [ 53.261633] __warn.cold+0x20/0x53 [ 53.265168] ? trace_hardirqs_on+0x67/0x220 [ 53.269484] ? hsr_forward_skb+0x122f/0x1c10 [ 53.273899] report_bug+0x263/0x2b0 [ 53.277887] do_error_trap+0x204/0x360 [ 53.281776] ? math_error+0x340/0x340 [ 53.285564] ? wake_up_klogd+0x99/0xd0 [ 53.289448] ? vprintk_emit+0x1ce/0x6d0 [ 53.293438] ? error_entry+0x7c/0xe0 [ 53.297145] ? trace_hardirqs_off_caller+0x65/0x220 [ 53.302156] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.306997] do_invalid_op+0x1b/0x20 [ 53.310711] invalid_op+0x14/0x20 [ 53.314213] RIP: 0010:hsr_forward_skb+0x122f/0x1c10 [ 53.319227] Code: fb ff ff e8 13 32 29 fa 4c 89 e9 ba 6e 01 00 00 48 c7 c6 20 23 68 88 48 c7 c7 60 23 68 88 c6 05 6c 73 84 02 01 e8 2f c2 fc f9 <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 80 3c 02 [ 53.338129] RSP: 0018:ffff888095d3f8d8 EFLAGS: 00010286 [ 53.343482] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 53.350761] RDX: 0000000000000000 RSI: ffffffff8155bb16 RDI: ffffed1012ba7f0d [ 53.358035] RBP: ffff888095d3f978 R08: ffff88809e9fe480 R09: 0000000000000000 [ 53.365366] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a8f91d40 [ 53.372681] R13: ffff8880938263c0 R14: ffff88809020d180 R15: ffff88809020d190 [ 53.379967] ? vprintk_func+0x86/0x189 [ 53.383867] ? hsr_forward_skb+0x122f/0x1c10 [ 53.388354] ? validate_xmit_skb+0x743/0xd50 [ 53.392760] ? kasan_check_write+0x14/0x20 [ 53.396984] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 53.401994] hsr_dev_xmit+0x72/0xa0 [ 53.405875] dev_direct_xmit+0x34d/0x650 [ 53.409941] ? validate_xmit_skb_list+0x130/0x130 [ 53.414780] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.420307] ? skb_copy_datagram_from_iter+0x441/0x660 [ 53.425695] packet_direct_xmit+0xf9/0x170 [ 53.429918] packet_sendmsg+0x3bb2/0x6440 [ 53.434071] ? packet_notifier+0x840/0x840 [ 53.438292] ? release_sock+0x156/0x1c0 [ 53.442279] ? selinux_socket_sendmsg+0x36/0x40 [ 53.447047] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.452592] ? security_socket_sendmsg+0x8d/0xc0 [ 53.458137] ? packet_notifier+0x840/0x840 [ 53.462561] sock_sendmsg+0xd7/0x130 [ 53.466268] __sys_sendto+0x262/0x380 [ 53.470062] ? __ia32_sys_getpeername+0xb0/0xb0 [ 53.474825] ? __ia32_sys_socketpair+0xf0/0xf0 [ 53.479415] ? fd_install+0x4d/0x60 [ 53.483046] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.488660] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 53.493422] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 53.498170] ? do_syscall_64+0x26/0x620 [ 53.502147] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.507533] __x64_sys_sendto+0xe1/0x1a0 [ 53.511604] do_syscall_64+0xfd/0x620 [ 53.515396] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.520571] RIP: 0033:0x442099 [ 53.523751] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 5b 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 53.542656] RSP: 002b:00007fffdd391fc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 53.551151] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000442099 [ 53.558420] RDX: 000000000000000e RSI: 0000000020000100 RDI: 0000000000000003 [ 53.565696] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 53.572983] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 53.580622] R13: 0000000000403610 R14: 0000000000000000 R15: 0000000000000000 [ 53.589494] Kernel Offset: disabled [ 53.593199] Rebooting in 86400 seconds..