[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 37.176245] random: sshd: uninitialized urandom read (32 bytes read) [ 37.437578] kauditd_printk_skb: 10 callbacks suppressed [ 37.437586] audit: type=1400 audit(1578405824.765:35): avc: denied { map } for pid=7200 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 [ 37.494006] random: sshd: uninitialized urandom read (32 bytes read) [ 38.183633] random: sshd: uninitialized urandom read (32 bytes read) [ 38.392366] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.243' (ECDSA) to the list of known hosts. [ 45.762064] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 45.883216] audit: type=1400 audit(1578405833.215:36): avc: denied { map } for pid=7212 comm="syz-executor304" path="/root/syz-executor304697242" dev="sda1" ino=16483 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 45.910570] audit: type=1400 audit(1578405833.215:37): avc: denied { create } for pid=7213 comm="syz-executor304" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 45.934659] audit: type=1400 audit(1578405833.215:38): avc: denied { write } for pid=7213 comm="syz-executor304" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 45.958930] audit: type=1400 audit(1578405833.215:39): avc: denied { read } for pid=7213 comm="syz-executor304" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 49.110210] Unexpected user alpha2: [ 49.114461] ------------[ cut here ]------------ [ 49.119470] WARNING: CPU: 1 PID: 2595 at net/wireless/reg.c:414 restore_regulatory_settings.cold+0x40/0x47 [ 49.129251] Kernel panic - not syncing: panic_on_warn set ... [ 49.129251] [ 49.136619] CPU: 1 PID: 2595 Comm: kworker/1:2 Not tainted 4.14.162-syzkaller #0 [ 49.144151] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.153511] Workqueue: events_power_efficient crda_timeout_work [ 49.159564] Call Trace: [ 49.162147] dump_stack+0x142/0x197 [ 49.165773] panic+0x1f9/0x42d [ 49.169000] ? add_taint.cold+0x16/0x16 [ 49.173132] ? restore_regulatory_settings.cold+0x40/0x47 [ 49.178655] ? restore_regulatory_settings.cold+0x40/0x47 [ 49.184172] __warn.cold+0x2f/0x2f [ 49.187692] ? ist_end_non_atomic+0x10/0x10 [ 49.192007] ? restore_regulatory_settings.cold+0x40/0x47 [ 49.197546] report_bug+0x216/0x254 [ 49.201156] do_error_trap+0x1bb/0x310 [ 49.205031] ? math_error+0x360/0x360 [ 49.208821] ? vprintk_emit+0x171/0x600 [ 49.212779] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.217625] do_invalid_op+0x1b/0x20 [ 49.221321] invalid_op+0x1b/0x40 [ 49.224755] RIP: 0010:restore_regulatory_settings.cold+0x40/0x47 [ 49.230880] RSP: 0018:ffff8880a0bf7c70 EFLAGS: 00010286 [ 49.236224] RAX: 000000000000001a RBX: 0000000000000001 RCX: 0000000000000000 [ 49.243564] RDX: 0000000000000000 RSI: ffffffff86cc44e0 RDI: ffffed101417ef84 [ 49.250815] RBP: ffff8880a0bf7d28 R08: 000000000000001a R09: ffff8880a0624df0 [ 49.258072] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 49.265329] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880aed2acc0 [ 49.272633] ? regulatory_hint_user+0x250/0x250 [ 49.277287] crda_timeout_work+0x1f/0x30 [ 49.281332] process_one_work+0x863/0x1600 [ 49.285561] ? pwq_dec_nr_in_flight+0x2e0/0x2e0 [ 49.290214] worker_thread+0x5d9/0x1050 [ 49.294175] kthread+0x319/0x430 [ 49.298402] ? process_one_work+0x1600/0x1600 [ 49.302887] ? kthread_create_on_node+0xd0/0xd0 [ 49.307557] ret_from_fork+0x24/0x30 [ 49.312928] Kernel Offset: disabled [ 49.316669] Rebooting in 86400 seconds..