[ 45.211796][ T23] audit: type=1800 audit(1555539492.968:30): pid=8138 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: [ 58.439837][ T23] kauditd_printk_skb: 4 callbacks suppressed [ 58.439853][ T23] audit: type=1400 audit(1555539506.218:35): avc: denied { map } for pid=8315 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 '10.128.0.106' (ECDSA) to the list of known hosts. [ 64.951442][ T23] audit: type=1400 audit(1555539512.728:36): avc: denied { map } for pid=8327 comm="syz-executor187" path="/root/syz-executor187321009" 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 [ 64.987967][ T8328] IPVS: ftp: loaded support on port[0] = 21 [ 65.045367][ T8328] chnl_net:caif_netlink_parms(): no params data found [ 65.078715][ T8328] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.086376][ T8328] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.094198][ T8328] device bridge_slave_0 entered promiscuous mode [ 65.103041][ T8328] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.110279][ T8328] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.117970][ T8328] device bridge_slave_1 entered promiscuous mode [ 65.133721][ T8328] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 65.144241][ T8328] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 65.162443][ T8328] team0: Port device team_slave_0 added [ 65.169752][ T8328] team0: Port device team_slave_1 added [ 65.228247][ T8328] device hsr_slave_0 entered promiscuous mode [ 65.266350][ T8328] device hsr_slave_1 entered promiscuous mode [ 65.314525][ T8328] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.321972][ T8328] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.329837][ T8328] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.336978][ T8328] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.369216][ T8328] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.382716][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.403803][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.412843][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.421571][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.432969][ T8328] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.443322][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.451830][ T2983] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.458911][ T2983] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.477670][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.486177][ T8330] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.493417][ T8330] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.501637][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.510119][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.519065][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.529049][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.542851][ T8328] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.554475][ T8328] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.562360][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 65.579035][ T8328] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.590504][ T8328] ------------[ cut here ]------------ [ 65.596115][ T8328] hsr_addr_subst_dest: Unknown node [ 65.601797][ T8328] WARNING: CPU: 0 PID: 8328 at net/hsr/hsr_framereg.c:313 hsr_addr_subst_dest+0x382/0x460 [ 65.611832][ T8328] Kernel panic - not syncing: panic_on_warn set ... [ 65.618454][ T8328] CPU: 0 PID: 8328 Comm: syz-executor187 Not tainted 5.1.0-rc5+ #72 [ 65.626449][ T8328] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.636508][ T8328] Call Trace: [ 65.639797][ T8328] dump_stack+0x172/0x1f0 [ 65.644118][ T8328] ? hsr_addr_subst_dest+0x320/0x460 [ 65.649513][ T8328] panic+0x2cb/0x65c [ 65.653396][ T8328] ? __warn_printk+0xf3/0xf3 [ 65.657978][ T8328] ? hsr_addr_subst_dest+0x382/0x460 [ 65.663390][ T8328] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 65.669739][ T8328] ? __warn.cold+0x5/0x45 [ 65.674213][ T8328] ? __warn+0xe8/0x1d0 [ 65.678288][ T8328] ? hsr_addr_subst_dest+0x382/0x460 [ 65.683581][ T8328] __warn.cold+0x20/0x45 [ 65.687823][ T8328] ? vprintk_emit+0x1ce/0x6d0 [ 65.692497][ T8328] ? hsr_addr_subst_dest+0x382/0x460 [ 65.697775][ T8328] report_bug+0x263/0x2b0 [ 65.702158][ T8328] do_error_trap+0x11b/0x200 [ 65.706825][ T8328] do_invalid_op+0x37/0x50 [ 65.711278][ T8328] ? hsr_addr_subst_dest+0x382/0x460 [ 65.716562][ T8328] invalid_op+0x14/0x20 [ 65.720712][ T8328] RIP: 0010:hsr_addr_subst_dest+0x382/0x460 [ 65.726673][ T8328] Code: 89 de e8 b1 80 6a fa 84 db 75 d3 e8 68 7f 6a fa 48 c7 c6 e0 4d 19 88 48 c7 c7 a0 4d 19 88 c6 05 93 7a 54 02 01 e8 4c 2d 3d fa <0f> 0b eb b0 e8 45 7f 6a fa 0f b6 1d 7f 7a 54 02 31 ff 89 de e8 75 [ 65.746279][ T8328] RSP: 0018:ffff88808374f5f0 EFLAGS: 00010282 [ 65.752333][ T8328] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 65.760291][ T8328] RDX: 0000000000000000 RSI: ffffffff815afcb6 RDI: ffffed10106e9eb0 [ 65.768257][ T8328] RBP: ffff88808374f630 R08: ffff8880959a8000 R09: ffffed1015d03ef1 [ 65.776231][ T8328] R10: ffffed1015d03ef0 R11: ffff8880ae81f787 R12: ffff88809cce1520 [ 65.784203][ T8328] R13: 00000000aaaaaaaa R14: 00000000e2b6dfef R15: 000000000000aaaa [ 65.792186][ T8328] ? vprintk_func+0x86/0x189 [ 65.796858][ T8328] hsr_forward_skb+0x123c/0x1bd0 [ 65.801814][ T8328] hsr_dev_xmit+0x72/0xa0 [ 65.806184][ T8328] dev_hard_start_xmit+0x1b2/0x980 [ 65.811303][ T8328] __dev_queue_xmit+0x271d/0x3060 [ 65.816325][ T8328] ? __might_fault+0x12b/0x1e0 [ 65.821076][ T8328] ? find_held_lock+0x35/0x130 [ 65.825843][ T8328] ? netdev_pick_tx+0x300/0x300 [ 65.830681][ T8328] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 65.836920][ T8328] ? iov_iter_advance+0x295/0xf70 [ 65.841951][ T8328] dev_queue_xmit+0x18/0x20 [ 65.846500][ T8328] ? dev_queue_xmit+0x18/0x20 [ 65.851179][ T8328] pppoe_sendmsg+0x657/0x7e0 [ 65.855884][ T8328] ? ether_setup+0x2d0/0x2d0 [ 65.860704][ T8328] ? pppoe_getname+0x120/0x120 [ 65.865480][ T8328] ? tomoyo_socket_sendmsg+0x26/0x30 [ 65.870763][ T8328] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 65.877007][ T8328] ? security_socket_sendmsg+0x93/0xc0 [ 65.882514][ T8328] ? pppoe_getname+0x120/0x120 [ 65.887271][ T8328] sock_sendmsg+0xdd/0x130 [ 65.891684][ T8328] ___sys_sendmsg+0x3e2/0x930 [ 65.896370][ T8328] ? copy_msghdr_from_user+0x430/0x430 [ 65.901851][ T8328] ? __lock_acquire+0x548/0x3fb0 [ 65.906784][ T8328] ? mark_held_locks+0xf0/0xf0 [ 65.911656][ T8328] ? __lock_acquire+0x548/0x3fb0 [ 65.916804][ T8328] ? __might_fault+0x12b/0x1e0 [ 65.921566][ T8328] ? find_held_lock+0x35/0x130 [ 65.926333][ T8328] ? __might_fault+0x12b/0x1e0 [ 65.931201][ T8328] ? lock_downgrade+0x880/0x880 [ 65.936054][ T8328] ? ___might_sleep+0x163/0x280 [ 65.941020][ T8328] __sys_sendmmsg+0x1bf/0x4d0 [ 65.945712][ T8328] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 65.950757][ T8328] ? __sys_connect+0x12d/0x330 [ 65.955521][ T8328] ? __ia32_sys_accept+0xb0/0xb0 [ 65.960473][ T8328] ? kasan_check_write+0x14/0x20 [ 65.965404][ T8328] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 65.970865][ T8328] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 65.976314][ T8328] ? do_syscall_64+0x26/0x610 [ 65.981096][ T8328] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 65.987215][ T8328] ? do_syscall_64+0x26/0x610 [ 65.991896][ T8328] __x64_sys_sendmmsg+0x9d/0x100 [ 65.996884][ T8328] do_syscall_64+0x103/0x610 [ 66.001496][ T8328] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 66.007375][ T8328] RIP: 0033:0x441929 [ 66.011252][ T8328] 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 [ 66.030954][ T8328] RSP: 002b:00007fff8088e128 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 66.039364][ T8328] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441929 [ 66.047377][ T8328] RDX: 04000000000000eb RSI: 000000002000d180 RDI: 0000000000000003 [ 66.055344][ T8328] RBP: 00000000004a8fd0 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 66.063319][ T8328] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402e70 [ 66.071381][ T8328] R13: 0000000000402f00 R14: 0000000000000000 R15: 0000000000000000 [ 66.080253][ T8328] Kernel Offset: disabled [ 66.084667][ T8328] Rebooting in 86400 seconds..