[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.24' (ECDSA) to the list of known hosts. syzkaller login: [ 32.465522] audit: type=1400 audit(1602593245.643:8): avc: denied { execmem } for pid=6357 comm="syz-executor148" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 32.486578] IPVS: ftp: loaded support on port[0] = 21 [ 32.546076] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 32.567977] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 32.575115] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 32.597588] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 32.605106] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 32.616487] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 32.626371] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 32.641228] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program [ 32.668558] syz-executor148 (6398) used greatest stack depth: 25016 bytes left [ 32.682501] ------------[ cut here ]------------ [ 32.687359] WARNING: CPU: 0 PID: 6399 at net/wireless/sme.c:533 cfg80211_connect+0x1856/0x2120 [ 32.696191] Kernel panic - not syncing: panic_on_warn set ... [ 32.696191] [ 32.703573] CPU: 0 PID: 6399 Comm: syz-executor148 Not tainted 4.14.198-syzkaller #0 [ 32.711427] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.720758] Call Trace: [ 32.723327] dump_stack+0x1b2/0x283 [ 32.726933] panic+0x1f9/0x42d [ 32.730106] ? add_taint.cold+0x16/0x16 [ 32.734060] ? cfg80211_connect+0x1856/0x2120 [ 32.738534] ? cfg80211_connect+0x1856/0x2120 [ 32.743005] __warn.cold+0x20/0x4b [ 32.746520] ? ist_end_non_atomic+0x10/0x10 [ 32.750815] ? cfg80211_connect+0x1856/0x2120 [ 32.755295] report_bug+0x208/0x249 [ 32.758932] do_error_trap+0x195/0x2d0 [ 32.762800] ? math_error+0x2d0/0x2d0 [ 32.766580] ? __lock_acquire+0x5fc/0x3f20 [ 32.770877] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.775697] invalid_op+0x1b/0x40 [ 32.779129] RIP: 0010:cfg80211_connect+0x1856/0x2120 [ 32.784204] RSP: 0018:ffff8880971e7448 EFLAGS: 00010297 [ 32.789550] RAX: ffff888095e96080 RBX: ffff888096d9d190 RCX: 0000000000000000 [ 32.796813] RDX: 0000000000000000 RSI: ffff88809f1e9566 RDI: ffffffff874b1b38 [ 32.804066] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1012db3a52 [ 32.811321] R10: ffff888096d9d295 R11: ffff888095e96080 R12: ffff8880971e75c0 [ 32.818569] R13: ffffffff874b1a00 R14: ffff888096d9d2b8 R15: ffff888096d9d290 [ 32.825835] ? cfg80211_connect+0x1856/0x2120 [ 32.830402] ? trace_hardirqs_on+0x10/0x10 [ 32.834618] ? memset+0x20/0x40 [ 32.837890] ? __cfg80211_disconnected+0x18e0/0x18e0 [ 32.842972] ? nl80211_crypto_settings+0x3a5/0x960 [ 32.847881] ? ieee80211_get_channel+0xed/0x150 [ 32.852530] nl80211_connect+0x1379/0x1cd0 [ 32.856746] ? nl80211_update_connect_params+0x9a0/0x9a0 [ 32.862174] ? lock_acquire+0x170/0x3f0 [ 32.866124] ? nl80211_pre_doit+0x2d9/0x510 [ 32.870446] ? nl80211_pre_doit+0x79/0x510 [ 32.874666] genl_family_rcv_msg+0x572/0xb20 [ 32.879066] ? genl_rcv+0x40/0x40 [ 32.882497] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 32.887926] ? trace_hardirqs_on+0x10/0x10 [ 32.892139] ? sock_sendmsg+0xb5/0x100 [ 32.896008] genl_rcv_msg+0xaf/0x140 [ 32.899699] netlink_rcv_skb+0x125/0x390 [ 32.903735] ? genl_family_rcv_msg+0xb20/0xb20 [ 32.908298] ? netlink_ack+0x9a0/0x9a0 [ 32.912161] ? lock_acquire+0x170/0x3f0 [ 32.916117] genl_rcv+0x24/0x40 [ 32.919387] netlink_unicast+0x437/0x610 [ 32.923436] ? netlink_sendskb+0xd0/0xd0 [ 32.927489] netlink_sendmsg+0x62e/0xb80 [ 32.931540] ? nlmsg_notify+0x170/0x170 [ 32.935488] ? kernel_recvmsg+0x210/0x210 [ 32.939613] ? security_socket_sendmsg+0x83/0xb0 [ 32.944343] ? nlmsg_notify+0x170/0x170 [ 32.948294] sock_sendmsg+0xb5/0x100 [ 32.951984] ___sys_sendmsg+0x6c8/0x800 [ 32.955957] ? copy_msghdr_from_user+0x3b0/0x3b0 [ 32.960705] ? dev_ioctl+0xe7/0xbe0 [ 32.964319] ? dev_ifsioc+0x7d0/0x7d0 [ 32.968116] ? __dentry_kill+0x3f7/0x550 [ 32.972158] ? trace_hardirqs_on+0x10/0x10 [ 32.976396] ? sock_ioctl+0x16c/0x4c0 [ 32.980200] ? sock_release+0x1e0/0x1e0 [ 32.984149] ? __fdget+0x167/0x1f0 [ 32.987667] ? sockfd_lookup_light+0xb2/0x160 [ 32.992149] __sys_sendmsg+0xa3/0x120 [ 32.995928] ? SyS_shutdown+0x160/0x160 [ 32.999889] ? security_file_ioctl+0x83/0xb0 [ 33.004275] SyS_sendmsg+0x27/0x40 [ 33.007789] ? __sys_sendmsg+0x120/0x120 [ 33.011839] do_syscall_64+0x1d5/0x640 [ 33.015706] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 33.020875] RIP: 0033:0x442139 [ 33.024043] RSP: 002b:00007ffd7e8e1628 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 33.031739] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000442139 [ 33.038984] RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000003 [ 33.046241] RBP: 0000000000000000 R08: 0000001300000000 R09: 0000001300000000 [ 33.053487] R10: 0000001300000000 R11: 0000000000000246 R12: 0000000000007fa3 [ 33.060732] R13: 0000000000000000 R14: 000000000000000c R15: 0000000000000004 [ 33.069481] Kernel Offset: disabled [ 33.073138] Rebooting in 86400 seconds..