[ 45.286491][ T26] audit: type=1800 audit(1555437132.609:30): pid=8012 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 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: [ 49.948873][ T26] kauditd_printk_skb: 4 callbacks suppressed [ 49.948889][ T26] audit: type=1400 audit(1555437137.309:35): avc: denied { map } for pid=8183 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 '10.128.1.38' (ECDSA) to the list of known hosts. [ 56.497551][ T26] audit: type=1400 audit(1555437143.849:36): avc: denied { map } for pid=8195 comm="syz-executor136" path="/root/syz-executor136421694" 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 [ 56.533780][ T8196] IPVS: ftp: loaded support on port[0] = 21 [ 56.585997][ T8196] chnl_net:caif_netlink_parms(): no params data found [ 56.617444][ T8196] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.625072][ T8196] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.633050][ T8196] device bridge_slave_0 entered promiscuous mode [ 56.641419][ T8196] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.648602][ T8196] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.656222][ T8196] device bridge_slave_1 entered promiscuous mode [ 56.673334][ T8196] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 56.683913][ T8196] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 56.702130][ T8196] team0: Port device team_slave_0 added [ 56.709003][ T8196] team0: Port device team_slave_1 added [ 56.759567][ T8196] device hsr_slave_0 entered promiscuous mode [ 56.827621][ T8196] device hsr_slave_1 entered promiscuous mode [ 56.885754][ T8196] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.893042][ T8196] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.900986][ T8196] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.908128][ T8196] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.942094][ T8196] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.955161][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.965607][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.974995][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.983254][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 56.994966][ T8196] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.005207][ T8198] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.014055][ T8198] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.021160][ T8198] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.032336][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.041294][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.048418][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.069002][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.077777][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.086658][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 57.095642][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.105796][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.117001][ T8196] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.134800][ T8196] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.146775][ T8196] ------------[ cut here ]------------ [ 57.152437][ T8196] hsr_addr_subst_dest: Unknown node [ 57.158069][ T8196] WARNING: CPU: 0 PID: 8196 at net/hsr/hsr_framereg.c:313 hsr_addr_subst_dest+0x382/0x460 [ 57.167960][ T8196] Kernel panic - not syncing: panic_on_warn set ... [ 57.174545][ T8196] CPU: 0 PID: 8196 Comm: syz-executor136 Not tainted 5.1.0-rc5+ #70 [ 57.182501][ T8196] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.192560][ T8196] Call Trace: [ 57.195849][ T8196] dump_stack+0x172/0x1f0 [ 57.200166][ T8196] ? hsr_addr_subst_dest+0x380/0x460 [ 57.205543][ T8196] panic+0x2cb/0x65c [ 57.209422][ T8196] ? __warn_printk+0xf3/0xf3 [ 57.214003][ T8196] ? hsr_addr_subst_dest+0x382/0x460 [ 57.219271][ T8196] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.225508][ T8196] ? __warn.cold+0x5/0x45 [ 57.229829][ T8196] ? __warn+0xe8/0x1d0 [ 57.233914][ T8196] ? hsr_addr_subst_dest+0x382/0x460 [ 57.239189][ T8196] __warn.cold+0x20/0x45 [ 57.243418][ T8196] ? vprintk_emit+0x1ce/0x6d0 [ 57.248093][ T8196] ? hsr_addr_subst_dest+0x382/0x460 [ 57.253387][ T8196] report_bug+0x263/0x2b0 [ 57.257718][ T8196] do_error_trap+0x11b/0x200 [ 57.262308][ T8196] do_invalid_op+0x37/0x50 [ 57.266715][ T8196] ? hsr_addr_subst_dest+0x382/0x460 [ 57.272011][ T8196] invalid_op+0x14/0x20 [ 57.276271][ T8196] RIP: 0010:hsr_addr_subst_dest+0x382/0x460 [ 57.282155][ T8196] Code: 89 de e8 11 a9 6a fa 84 db 75 d3 e8 c8 a7 6a fa 48 c7 c6 c0 4e 19 88 48 c7 c7 80 4e 19 88 c6 05 32 a2 54 02 01 e8 ac 55 3d fa <0f> 0b eb b0 e8 a5 a7 6a fa 0f b6 1d 1e a2 54 02 31 ff 89 de e8 d5 [ 57.301772][ T8196] RSP: 0018:ffff888090b5f5f0 EFLAGS: 00010282 [ 57.307843][ T8196] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 57.315817][ T8196] RDX: 0000000000000000 RSI: ffffffff815afcb6 RDI: ffffed101216beb0 [ 57.323781][ T8196] RBP: ffff888090b5f630 R08: ffff888090060500 R09: ffffed1015d05011 [ 57.331770][ T8196] R10: ffffed1015d05010 R11: ffff8880ae828087 R12: ffff888085d38ae0 [ 57.339728][ T8196] R13: 0000000000000000 R14: 000000007b73a5fa R15: 0000000000000000 [ 57.347717][ T8196] ? vprintk_func+0x86/0x189 [ 57.352314][ T8196] hsr_forward_skb+0x123c/0x1bd0 [ 57.357258][ T8196] hsr_dev_xmit+0x72/0xa0 [ 57.361587][ T8196] dev_hard_start_xmit+0x1b2/0x980 [ 57.366686][ T8196] __dev_queue_xmit+0x271d/0x3060 [ 57.371698][ T8196] ? __might_fault+0x12b/0x1e0 [ 57.376568][ T8196] ? find_held_lock+0x35/0x130 [ 57.381320][ T8196] ? netdev_pick_tx+0x300/0x300 [ 57.386179][ T8196] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 57.392412][ T8196] ? iov_iter_advance+0x295/0xf70 [ 57.397448][ T8196] dev_queue_xmit+0x18/0x20 [ 57.401961][ T8196] ? dev_queue_xmit+0x18/0x20 [ 57.406623][ T8196] pppoe_sendmsg+0x657/0x7e0 [ 57.411205][ T8196] ? ether_setup+0x2d0/0x2d0 [ 57.416147][ T8196] ? pppoe_getname+0x120/0x120 [ 57.420907][ T8196] ? tomoyo_socket_sendmsg+0x26/0x30 [ 57.426179][ T8196] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.432426][ T8196] ? security_socket_sendmsg+0x93/0xc0 [ 57.437874][ T8196] ? pppoe_getname+0x120/0x120 [ 57.442627][ T8196] sock_sendmsg+0xdd/0x130 [ 57.447478][ T8196] ___sys_sendmsg+0x3e2/0x930 [ 57.454053][ T8196] ? copy_msghdr_from_user+0x430/0x430 [ 57.459532][ T8196] ? __lock_acquire+0x548/0x3fb0 [ 57.464506][ T8196] ? mark_held_locks+0xf0/0xf0 [ 57.469382][ T8196] ? __lock_acquire+0x548/0x3fb0 [ 57.474313][ T8196] ? __might_fault+0x12b/0x1e0 [ 57.479070][ T8196] ? find_held_lock+0x35/0x130 [ 57.483833][ T8196] ? __might_fault+0x12b/0x1e0 [ 57.488936][ T8196] ? lock_downgrade+0x880/0x880 [ 57.493827][ T8196] ? ___might_sleep+0x163/0x280 [ 57.498690][ T8196] __sys_sendmmsg+0x1bf/0x4d0 [ 57.503363][ T8196] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 57.508393][ T8196] ? __sys_connect+0x12d/0x330 [ 57.513157][ T8196] ? __ia32_sys_accept+0xb0/0xb0 [ 57.518092][ T8196] ? kasan_check_write+0x14/0x20 [ 57.523020][ T8196] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 57.528561][ T8196] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 57.534070][ T8196] ? do_syscall_64+0x26/0x610 [ 57.538739][ T8196] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.544795][ T8196] ? do_syscall_64+0x26/0x610 [ 57.549540][ T8196] __x64_sys_sendmmsg+0x9d/0x100 [ 57.554486][ T8196] do_syscall_64+0x103/0x610 [ 57.559160][ T8196] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.565185][ T8196] RIP: 0033:0x441929 [ 57.569066][ T8196] 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 bb 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 57.588886][ T8196] RSP: 002b:00007fff026eb6c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 57.597400][ T8196] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441929 [ 57.605427][ T8196] RDX: 0400000000000191 RSI: 000000002000d180 RDI: 0000000000000003 [ 57.613443][ T8196] RBP: 00000000004a8fd0 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 57.621475][ T8196] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402e70 [ 57.629445][ T8196] R13: 0000000000402f00 R14: 0000000000000000 R15: 0000000000000000 [ 57.638469][ T8196] Kernel Offset: disabled [ 57.642864][ T8196] Rebooting in 86400 seconds..