Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[ 10.019029][ T22] audit: type=1400 audit(1580888326.995:10): avc: denied { watch } for pid=1804 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 [ 10.027425][ T22] audit: type=1400 audit(1580888326.995:11): avc: denied { watch } for pid=1804 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 [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 12.009094][ T22] audit: type=1400 audit(1580888328.985:12): avc: denied { map } for pid=1865 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 '10.128.0.120' (ECDSA) to the list of known hosts. executing program [ 18.092718][ T22] audit: type=1400 audit(1580888335.065:13): avc: denied { map } for pid=1877 comm="syz-executor540" path="/root/syz-executor540666996" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 18.094699][ T1877] IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready [ 18.099482][ T1877] kasan: CONFIG_KASAN_INLINE enabled [ 18.100532][ T1877] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 18.102166][ T1877] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 18.103101][ T1877] CPU: 0 PID: 1877 Comm: syz-executor540 Not tainted 5.4.17-syzkaller-00002-g202bb0151929 #0 [ 18.104645][ T1877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.106747][ T1877] RIP: 0010:inet6_set_link_af+0x1c3/0xc50 [ 18.108121][ T1877] Code: 15 fe 48 83 c3 04 48 89 d8 48 c1 e8 03 42 8a 04 28 84 c0 0f 85 b6 08 00 00 0f b6 1b 49 81 c6 e4 01 00 00 4c 89 f0 48 c1 e8 03 <42> 8a 04 28 84 c0 0f 85 b3 08 00 00 41 89 1e eb 75 80 3d 95 26 46 [ 18.111450][ T1877] RSP: 0018:ffff8881d34ce9c0 EFLAGS: 00010207 [ 18.112412][ T1877] RAX: 000000000000003c RBX: 0000000000000000 RCX: ffff8881d370c9c0 [ 18.117874][ T1877] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881d34cea78 [ 18.126004][ T1877] RBP: ffff8881d34ceb10 R08: ffffffff832d8c29 R09: ffff8881d34cea40 [ 18.134153][ T1877] R10: ffffed103a699d51 R11: 0000000000000000 R12: ffff8881d34cea80 [ 18.142110][ T1877] R13: dffffc0000000000 R14: 00000000000001e4 R15: 0000000000000000 [ 18.150081][ T1877] FS: 0000000001f6a880(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000 [ 18.159023][ T1877] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.165703][ T1877] CR2: 0000000020000004 CR3: 00000001d45a8001 CR4: 00000000001606f0 [ 18.173856][ T1877] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.181812][ T1877] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.189831][ T1877] Call Trace: [ 18.193203][ T1877] ? inet6_get_link_af_size+0x50/0x50 [ 18.198553][ T1877] ? inet6_validate_link_af+0x400/0x400 [ 18.204134][ T1877] ? validate_linkmsg+0x46d/0x510 [ 18.209274][ T1877] do_setlink+0x2e25/0x3a90 [ 18.213779][ T1877] ? rtnetlink_event+0x1b0/0x1b0 [ 18.218705][ T1877] ? __nla_validate+0x50/0x50 [ 18.223369][ T1877] ? rtnl_newlink+0xff/0x1d50 [ 18.228073][ T1877] ? rtnetlink_rcv_msg+0x936/0xc20 [ 18.233172][ T1877] ? netlink_rcv_skb+0x1f0/0x460 [ 18.238145][ T1877] ? rtnetlink_rcv+0x1c/0x20 [ 18.242814][ T1877] ? netlink_unicast+0x87c/0xa20 [ 18.247733][ T1877] ? netlink_sendmsg+0x9a7/0xd40 [ 18.252837][ T1877] ? ____sys_sendmsg+0x56f/0x860 [ 18.257813][ T1877] ? __sys_sendmsg+0x26a/0x350 [ 18.262630][ T1877] ? __x64_sys_sendmsg+0x7f/0x90 [ 18.267606][ T1877] ? do_syscall_64+0xc0/0x100 [ 18.272273][ T1877] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.278321][ T1877] ? __nla_parse+0x41/0x50 [ 18.282728][ T1877] ? inet6_validate_link_af+0x2ae/0x400 [ 18.288269][ T1877] ? inet6_get_link_af_size+0x50/0x50 [ 18.293674][ T1877] ? __rcu_read_lock+0x50/0x50 [ 18.298428][ T1877] ? __should_failslab+0x90/0x160 [ 18.303470][ T1877] ? rtnl_newlink+0xff/0x1d50 [ 18.308133][ T1877] rtnl_newlink+0x1240/0x1d50 [ 18.312799][ T1877] ? rtnl_setlink+0x560/0x560 [ 18.317464][ T1877] ? __kasan_check_read+0x11/0x20 [ 18.322469][ T1877] ? prep_new_page+0x13a/0x3a0 [ 18.327266][ T1877] ? __rcu_read_lock+0x50/0x50 [ 18.332051][ T1877] ? get_page_from_freelist+0x5426/0x57e0 [ 18.337757][ T1877] ? __kasan_check_write+0x14/0x20 [ 18.342859][ T1877] ? mutex_lock+0xa6/0x110 [ 18.347261][ T1877] ? mutex_trylock+0xb0/0xb0 [ 18.351826][ T1877] ? ns_capable+0x8c/0xe0 [ 18.356135][ T1877] ? netlink_net_capable+0x124/0x160 [ 18.361758][ T1877] ? rtnl_setlink+0x560/0x560 [ 18.366415][ T1877] rtnetlink_rcv_msg+0x936/0xc20 [ 18.371336][ T1877] ? is_bpf_text_address+0x2c8/0x2e0 [ 18.376610][ T1877] ? __kernel_text_address+0x9a/0x110 [ 18.381993][ T1877] ? rtnetlink_bind+0x80/0x80 [ 18.386671][ T1877] ? arch_stack_walk+0x98/0xe0 [ 18.391806][ T1877] ? __rcu_read_lock+0x50/0x50 [ 18.396742][ T1877] ? avc_has_perm_noaudit+0x2fc/0x3f0 [ 18.402207][ T1877] ? rhashtable_jhash2+0x1f1/0x330 [ 18.408317][ T1877] ? jhash+0x750/0x750 [ 18.412368][ T1877] ? rht_key_hashfn+0x157/0x240 [ 18.417207][ T1877] ? deferred_put_nlk_sk+0x200/0x200 [ 18.422511][ T1877] ? __alloc_skb+0x109/0x540 [ 18.427286][ T1877] ? jhash+0x750/0x750 [ 18.431368][ T1877] ? netlink_hash+0xd0/0xd0 [ 18.435861][ T1877] ? avc_has_perm+0x15f/0x260 [ 18.440584][ T1877] ? __rcu_read_lock+0x50/0x50 [ 18.445339][ T1877] netlink_rcv_skb+0x1f0/0x460 [ 18.450093][ T1877] ? rtnetlink_bind+0x80/0x80 [ 18.454758][ T1877] ? netlink_ack+0xa80/0xa80 [ 18.459336][ T1877] ? netlink_autobind+0x1c0/0x1c0 [ 18.464381][ T1877] ? __rcu_read_lock+0x50/0x50 [ 18.469135][ T1877] ? selinux_vm_enough_memory+0x160/0x160 [ 18.474948][ T1877] rtnetlink_rcv+0x1c/0x20 [ 18.479351][ T1877] netlink_unicast+0x87c/0xa20 [ 18.484106][ T1877] ? netlink_detachskb+0x60/0x60 [ 18.489036][ T1877] ? security_netlink_send+0xab/0xc0 [ 18.494397][ T1877] netlink_sendmsg+0x9a7/0xd40 [ 18.499288][ T1877] ? netlink_getsockopt+0x900/0x900 [ 18.504555][ T1877] ? security_socket_sendmsg+0xad/0xc0 [ 18.510042][ T1877] ? netlink_getsockopt+0x900/0x900 [ 18.515249][ T1877] ____sys_sendmsg+0x56f/0x860 [ 18.520049][ T1877] ? __sys_sendmsg_sock+0x2a0/0x2a0 [ 18.525417][ T1877] ? __kasan_check_read+0x11/0x20 [ 18.530443][ T1877] ? __kasan_check_read+0x11/0x20 [ 18.535489][ T1877] ? __fdget+0x156/0x200 [ 18.539711][ T1877] __sys_sendmsg+0x26a/0x350 [ 18.544437][ T1877] ? ____sys_sendmsg+0x860/0x860 [ 18.549376][ T1877] ? finish_fault+0x230/0x230 [ 18.554053][ T1877] ? __up_read+0x6f/0x1b0 [ 18.558382][ T1877] ? __down_read+0x240/0x240 [ 18.562950][ T1877] __x64_sys_sendmsg+0x7f/0x90 [ 18.567866][ T1877] do_syscall_64+0xc0/0x100 [ 18.572364][ T1877] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.578258][ T1877] RIP: 0033:0x4402e9 [ 18.582140][ T1877] 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 18.602165][ T1877] RSP: 002b:00007ffdc441f638 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 18.610601][ T1877] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402e9 [ 18.618657][ T1877] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 18.626826][ T1877] RBP: 00000000006ca018 R08: 0000000000000008 R09: 00000000004002c8 [ 18.635059][ T1877] R10: 0000000000000005 R11: 0000000000000246 R12: 0000000000401b70 [ 18.643136][ T1877] R13: 0000000000401c00 R14: 0000000000000000 R15: 0000000000000000 [ 18.651251][ T1877] Modules linked in: [ 18.655478][ T1877] ---[ end trace 9477238fbbd1ccd2 ]--- [ 18.660991][ T1877] RIP: 0010:inet6_set_link_af+0x1c3/0xc50 [ 18.666805][ T1877] Code: 15 fe 48 83 c3 04 48 89 d8 48 c1 e8 03 42 8a 04 28 84 c0 0f 85 b6 08 00 00 0f b6 1b 49 81 c6 e4 01 00 00 4c 89 f0 48 c1 e8 03 <42> 8a 04 28 84 c0 0f 85 b3 08 00 00 41 89 1e eb 75 80 3d 95 26 46 [ 18.686430][ T1877] RSP: 0018:ffff8881d34ce9c0 EFLAGS: 00010207 [ 18.692517][ T1877] RAX: 000000000000003c RBX: 0000000000000000 RCX: ffff8881d370c9c0 [ 18.700528][ T1877] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881d34cea78 [ 18.708537][ T1877] RBP: ffff8881d34ceb10 R08: ffffffff832d8c29 R09: ffff8881d34cea40 [ 18.716524][ T1877] R10: ffffed103a699d51 R11: 0000000000000000 R12: ffff8881d34cea80 [ 18.724536][ T1877] R13: dffffc0000000000 R14: 00000000000001e4 R15: 0000000000000000 [ 18.732561][ T1877] FS: 0000000001f6a880(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000 [ 18.741507][ T1877] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.748121][ T1877] CR2: 0000000020000004 CR3: 00000001d45a8001 CR4: 00000000001606f0 [ 18.756262][ T1877] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.764327][ T1877] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.772349][ T1877] Kernel panic - not syncing: Fatal exception [ 18.779303][ T1877] Kernel Offset: disabled [ 18.783749][ T1877] Rebooting in 86400 seconds..