Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 9.577390][ T22] audit: type=1400 audit(1579860147.521:10): avc: denied { watch } for pid=1789 comm="restorecond" path="/root/.ssh" dev="sda1" ino=16179 scontext=system_u:system_r:kernel_t:s0 tcontext=unconfined_u:object_r:ssh_home_t:s0 tclass=dir permissive=1 [ 9.583667][ T22] audit: type=1400 audit(1579860147.521:11): avc: denied { watch } for pid=1789 comm="restorecond" path="/etc/selinux/restorecond.conf" dev="sda1" ino=2280 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [....] 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: [ 11.670697][ T22] audit: type=1400 audit(1579860149.611:12): avc: denied { map } for pid=1869 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 '10.128.1.56' (ECDSA) to the list of known hosts. [ 17.705032][ T22] audit: type=1400 audit(1579860155.651:13): avc: denied { map } for pid=1881 comm="syz-executor339" path="/root/syz-executor339194223" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program [ 18.663767][ C1] BUG: unable to handle page fault for address: ffff888220000000 [ 18.671494][ C1] #PF: supervisor read access in kernel mode [ 18.677646][ C1] #PF: error_code(0x0000) - not-present page [ 18.683611][ C1] PGD 5201067 P4D 5201067 PUD 5204067 PMD 0 [ 18.689605][ C1] Oops: 0000 [#1] PREEMPT SMP KASAN [ 18.694813][ C1] CPU: 1 PID: 1882 Comm: syz-executor339 Not tainted 5.4.14-syzkaller-01010-g020b443d5560 #0 [ 18.704934][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.714978][ C1] RIP: 0010:csum_partial+0x184/0x460 [ 18.720248][ C1] Code: 45 31 e4 4c 89 6d c8 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 4d 03 75 00 4d 13 75 08 4d 13 75 10 4d 13 75 18 4d 13 75 20 <4d> 13 75 28 4d 13 75 30 4d 13 75 38 4d 11 e6 85 db 74 0d 49 83 c5 [ 18.740044][ C1] RSP: 0018:ffff8881dbb094c0 EFLAGS: 00010202 [ 18.746093][ C1] RAX: ffffffff83845b60 RBX: 0000000002be1e7f RCX: ffff8881d2910000 [ 18.754054][ C1] RDX: 0000000000000101 RSI: 0000000003fffffd RDI: 0000000000000000 [ 18.762018][ C1] RBP: ffff8881dbb09518 R08: ffffffff83845b05 R09: ffff8881ceea7554 [ 18.769980][ C1] R10: fffff94000e58e47 R11: 0000000000000000 R12: 0000000000000000 [ 18.778023][ C1] R13: ffff88821fffffd8 R14: 3fe182ddebd2c24a R15: 000000001fffffed [ 18.785989][ C1] FS: 000000000220d880(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000 [ 18.794900][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.801673][ C1] CR2: ffff888220000000 CR3: 00000001d4c10003 CR4: 00000000001606e0 [ 18.809911][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.817870][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.826000][ C1] Call Trace: [ 18.829712][ C1] [ 18.832547][ C1] ? ip_protocol_deliver_rcu+0x2c2/0x620 [ 18.838155][ C1] __udp_gso_segment+0x731/0x12c0 [ 18.843179][ C1] ? ip_send_skb+0x46/0xe0 [ 18.847588][ C1] ? inet6_sendmsg+0xa1/0xc0 [ 18.852181][ C1] udp4_ufo_fragment+0x4b4/0x800 [ 18.857114][ C1] inet_gso_segment+0x5da/0x1320 [ 18.862095][ C1] ? inet_sk_state_store+0x340/0x340 [ 18.867537][ C1] skb_mac_gso_segment+0x290/0x490 [ 18.872702][ C1] ? skb_network_protocol+0x510/0x510 [ 18.878107][ C1] __skb_gso_segment+0x343/0x640 [ 18.883121][ C1] udp_queue_rcv_skb+0x241/0x6a0 [ 18.888304][ C1] __udp4_lib_rcv+0x2c18/0x2cd0 [ 18.893201][ C1] ? stack_trace_save+0x111/0x1e0 [ 18.898211][ C1] udp_rcv+0x21/0x30 [ 18.902091][ C1] ip_protocol_deliver_rcu+0x2c2/0x620 [ 18.907533][ C1] ip_local_deliver+0x407/0x5a0 [ 18.912362][ C1] ? ip_protocol_deliver_rcu+0x620/0x620 [ 18.917991][ C1] ? ip_rcv_finish_core+0x336/0xf10 [ 18.923211][ C1] ip_rcv+0x285/0x310 [ 18.927215][ C1] ? ip_local_deliver_finish+0x230/0x230 [ 18.932836][ C1] ? __kasan_check_write+0x14/0x20 [ 18.937927][ C1] ? _raw_spin_lock+0xa1/0x170 [ 18.942695][ C1] ? _raw_spin_lock_irqsave+0xda/0x1c0 [ 18.948140][ C1] ? ip_local_deliver_finish+0x230/0x230 [ 18.953756][ C1] process_backlog+0x50a/0xb00 [ 18.958501][ C1] ? rcu_report_qs_rnp+0x380/0x390 [ 18.963656][ C1] ? rps_trigger_softirq+0x130/0x130 [ 18.968936][ C1] ? rcu_cpu_kthread_park+0x70/0x70 [ 18.974415][ C1] net_rx_action+0x52c/0x1100 [ 18.979078][ C1] ? net_tx_action+0xa00/0xa00 [ 18.983824][ C1] ? run_rebalance_domains+0x17b/0x260 [ 18.989321][ C1] ? __kasan_check_read+0x11/0x20 [ 18.994321][ C1] __do_softirq+0x235/0x57e [ 18.998956][ C1] do_softirq_own_stack+0x2a/0x40 [ 19.004081][ C1] [ 19.007003][ C1] do_softirq+0xe2/0x130 [ 19.011259][ C1] ? __local_bh_enable_ip+0x170/0x170 [ 19.016631][ C1] netif_rx_ni+0x1b9/0x3e0 [ 19.021025][ C1] dev_loopback_xmit+0x3ee/0x540 [ 19.025932][ C1] ? validate_xmit_skb+0xb50/0xb50 [ 19.031028][ C1] ? __kasan_check_write+0x14/0x20 [ 19.036123][ C1] ip_mc_finish_output+0x1e1/0x3f0 [ 19.041203][ C1] ip_mc_output+0x385/0x9b0 [ 19.045678][ C1] ? ip_build_and_send_pkt+0x990/0x990 [ 19.051105][ C1] ? get_random_bytes+0x3cf/0x590 [ 19.056100][ C1] ? ip_mc_output+0x9b0/0x9b0 [ 19.060832][ C1] ? __rcu_read_lock+0x50/0x50 [ 19.065578][ C1] ? nf_hook_slow+0x1b6/0x200 [ 19.070249][ C1] ip_local_out+0x3af/0x510 [ 19.074741][ C1] ? __ip_make_skb+0x11e1/0x1870 [ 19.079646][ C1] ? dst_output+0x80/0x80 [ 19.083946][ C1] ? __ip_local_out+0x4a0/0x4a0 [ 19.088766][ C1] ? udp4_hwcsum+0x273/0x430 [ 19.093846][ C1] ip_send_skb+0x46/0xe0 [ 19.098059][ C1] udp_send_skb+0x9aa/0x1340 [ 19.102617][ C1] udp_sendmsg+0x1d63/0x2f20 [ 19.107192][ C1] ? ip_do_fragment+0x2290/0x2290 [ 19.112184][ C1] ? udp_cmsg_send+0x380/0x380 [ 19.116917][ C1] ? ipv6_dev_get_saddr+0x445/0x560 [ 19.122084][ C1] ? inet6_ifa_finish_destroy+0x160/0x160 [ 19.127772][ C1] ? _local_bh_enable+0x30/0x30 [ 19.132591][ C1] ? __rcu_read_lock+0x50/0x50 [ 19.137337][ C1] udpv6_sendmsg+0xa62/0x3830 [ 19.142004][ C1] ? __udp6_lib_rcv+0x2150/0x2150 [ 19.146996][ C1] ? avc_denied+0x1b0/0x1b0 [ 19.151466][ C1] ? __rcu_read_lock+0x50/0x50 [ 19.156213][ C1] ? sk_setup_caps+0x2c0/0x3d0 [ 19.160944][ C1] ? avc_has_perm+0x15f/0x260 [ 19.165590][ C1] ? avc_has_perm_noaudit+0x3f0/0x3f0 [ 19.170932][ C1] ? selinux_socket_sendmsg+0x22a/0x320 [ 19.176455][ C1] ? selinux_socket_accept+0x580/0x580 [ 19.181912][ C1] ? __kasan_check_read+0x11/0x20 [ 19.186916][ C1] ? __kasan_check_read+0x11/0x20 [ 19.191908][ C1] ? inet_send_prepare+0x97/0x4d0 [ 19.196900][ C1] inet6_sendmsg+0xa1/0xc0 [ 19.201301][ C1] ? inet6_ioctl+0x150/0x150 [ 19.205876][ C1] __sys_sendto+0x4ad/0x680 [ 19.210415][ C1] ? __ia32_sys_getpeername+0x90/0x90 [ 19.215876][ C1] ? __down_read+0x240/0x240 [ 19.220448][ C1] ? vmacache_find+0x21f/0x4d0 [ 19.225191][ C1] ? do_user_addr_fault+0x6b7/0xb50 [ 19.230371][ C1] __x64_sys_sendto+0xe5/0x100 [ 19.235278][ C1] do_syscall_64+0xc0/0x100 [ 19.239774][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.245650][ C1] RIP: 0033:0x4426a9 [ 19.249701][ C1] 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 7b 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 19.269421][ C1] RSP: 002b:00007ffc004b6a38 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 19.277935][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004426a9 [ 19.286009][ C1] RDX: 0000000000000401 RSI: 0000000020000600 RDI: 0000000000000003 [ 19.293964][ C1] RBP: 00007ffc004b6a60 R08: 00000000200011c0 R09: 000000000000001c [ 19.301920][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 19.309912][ C1] R13: 0000000000403c40 R14: 0000000000000000 R15: 0000000000000000 [ 19.318003][ C1] Modules linked in: [ 19.321929][ C1] CR2: ffff888220000000 [ 19.326064][ C1] ---[ end trace 8bed4b10a068ece3 ]--- [ 19.331520][ C1] RIP: 0010:csum_partial+0x184/0x460 [ 19.336954][ C1] Code: 45 31 e4 4c 89 6d c8 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 4d 03 75 00 4d 13 75 08 4d 13 75 10 4d 13 75 18 4d 13 75 20 <4d> 13 75 28 4d 13 75 30 4d 13 75 38 4d 11 e6 85 db 74 0d 49 83 c5 [ 19.356543][ C1] RSP: 0018:ffff8881dbb094c0 EFLAGS: 00010202 [ 19.362591][ C1] RAX: ffffffff83845b60 RBX: 0000000002be1e7f RCX: ffff8881d2910000 [ 19.370649][ C1] RDX: 0000000000000101 RSI: 0000000003fffffd RDI: 0000000000000000 [ 19.378601][ C1] RBP: ffff8881dbb09518 R08: ffffffff83845b05 R09: ffff8881ceea7554 [ 19.386556][ C1] R10: fffff94000e58e47 R11: 0000000000000000 R12: 0000000000000000 [ 19.394565][ C1] R13: ffff88821fffffd8 R14: 3fe182ddebd2c24a R15: 000000001fffffed [ 19.402629][ C1] FS: 000000000220d880(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000 [ 19.411543][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.418108][ C1] CR2: ffff888220000000 CR3: 00000001d4c10003 CR4: 00000000001606e0 [ 19.426065][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.434028][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.441996][ C1] Kernel panic - not syncing: Fatal exception in interrupt [ 19.450213][ C1] Kernel Offset: disabled [ 19.454547][ C1] Rebooting in 86400 seconds..