Starting mcstransd: [ 9.247990] random: sshd: uninitialized urandom read (32 bytes read) [....] 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: [ 12.837900] random: sshd: uninitialized urandom read (32 bytes read) [ 13.007878] random: sshd: uninitialized urandom read (32 bytes read) [ 13.112060] random: crng init done Warning: Permanently added '10.128.0.230' (ECDSA) to the list of known hosts. 2019/08/21 14:24:54 parsed 1 programs 2019/08/21 14:24:56 executed programs: 0 [ 66.052795] audit: type=1400 audit(1566397496.910:5): avc: denied { sys_admin } for pid=2078 comm="syz-executor.0" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 66.068176] audit: type=1400 audit(1566397496.930:6): avc: denied { net_admin } for pid=2079 comm="syz-executor.0" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 66.187284] audit: type=1400 audit(1566397497.050:7): avc: denied { sys_chroot } for pid=2079 comm="syz-executor.0" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 66.212445] audit: type=1400 audit(1566397497.070:8): avc: denied { associate } for pid=2079 comm="syz-executor.0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 2019/08/21 14:25:01 executed programs: 561 2019/08/21 14:25:06 executed programs: 1164 2019/08/21 14:25:11 executed programs: 1750 [ 85.191364] ------------[ cut here ]------------ [ 85.196156] WARNING: CPU: 0 PID: 10731 at net/ipv4/tcp.c:2193 tcp_close+0xced/0x1070 [ 85.204049] Kernel panic - not syncing: panic_on_warn set ... [ 85.204049] [ 85.211391] CPU: 0 PID: 10731 Comm: syz-executor.0 Not tainted 4.9.141+ #23 [ 85.218463] ffff8801c49a7bb0 ffffffff81b42e79 ffffffff82a38ce0 00000000ffffffff [ 85.226481] ffffffff82ca3800 0000000000000000 0000000000000009 ffff8801c49a7c70 [ 85.234467] ffffffff813f7125 0000000041b58ab3 ffffffff82e2b62b ffffffff813f6f66 [ 85.242543] Call Trace: [ 85.245105] [] dump_stack+0xc1/0x128 [ 85.250441] [] panic+0x1bf/0x39f [ 85.255432] [] ? add_taint.cold.5+0x16/0x16 [ 85.261375] [] ? __warn.cold.8+0x14/0x2f [ 85.267056] [] ? tcp_close+0xced/0x1070 [ 85.272655] [] __warn.cold.8+0x2f/0x2f [ 85.278166] [] warn_slowpath_null+0x2c/0x40 [ 85.284109] [] tcp_close+0xced/0x1070 [ 85.289532] [] ? ip_mc_drop_socket+0x1d3/0x230 [ 85.295736] [] inet_release+0xff/0x1d0 [ 85.301248] [] inet6_release+0x50/0x70 [ 85.306758] [] __sock_release+0xd7/0x260 [ 85.312439] [] ? __sock_release+0x260/0x260 [ 85.318381] [] sock_close+0x19/0x20 [ 85.323630] [] __fput+0x263/0x700 [ 85.328708] [] ____fput+0x15/0x20 [ 85.333782] [] task_work_run+0x10c/0x180 [ 85.339468] [] exit_to_usermode_loop+0x129/0x150 [ 85.345846] [] do_fast_syscall_32+0x6dc/0xa10 [ 85.351964] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 85.358600] [] entry_SYSENTER_compat+0x90/0xa2 [ 85.365268] Kernel Offset: disabled [ 85.368887] Rebooting in 86400 seconds..