[....] Starting OpenBSD Secure Shell server: sshd[ 10.347197] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 20.885490] random: sshd: uninitialized urandom read (32 bytes read) [ 21.203897] audit: type=1400 audit(1543078682.700:6): avc: denied { map } for pid=1777 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 [ 21.246488] random: sshd: uninitialized urandom read (32 bytes read) [ 21.692450] random: sshd: uninitialized urandom read (32 bytes read) [ 103.298951] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.78' (ECDSA) to the list of known hosts. [ 109.063357] random: sshd: uninitialized urandom read (32 bytes read) [ 109.152422] audit: type=1400 audit(1543078770.650:7): avc: denied { map } for pid=1837 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2018/11/24 16:59:31 parsed 1 programs [ 109.708942] audit: type=1400 audit(1543078771.200:8): avc: denied { map } for pid=1837 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=4999 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 110.275675] random: cc1: uninitialized urandom read (8 bytes read) INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes 2018/11/24 16:59:32 executed programs: 0 [ 111.081635] audit: type=1400 audit(1543078772.570:9): avc: denied { map } for pid=1837 comm="syz-execprog" path="/root/syzkaller-shm822419332" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 2018/11/24 16:59:37 executed programs: 3 2018/11/24 16:59:42 executed programs: 9 2018/11/24 16:59:48 executed programs: 16 [ 129.420962] kasan: CONFIG_KASAN_INLINE enabled [ 129.425798] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 129.433273] general protection fault: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 129.440015] Modules linked in: [ 129.443201] CPU: 1 PID: 64 Comm: kworker/u4:1 Not tainted 4.14.83+ #9 [ 129.449762] Workqueue: netns cleanup_net [ 129.453799] task: ffff8801d9125e00 task.stack: ffff8801d91a0000 [ 129.459837] RIP: 0010:addrconf_rt_table+0x126/0x2a0 [ 129.464830] RSP: 0018:ffff8801d91a76b8 EFLAGS: 00010206 [ 129.470169] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1003b224cc4 [ 129.477502] RDX: 000000000000004d RSI: 0000000000000005 RDI: 0000000000000268 [ 129.484760] RBP: ffff8801d91a76e0 R08: 0000000000000001 R09: 0000000000000000 [ 129.492182] R10: ffff8801d91266d0 R11: 0000000000000001 R12: ffff8801c7e75500 [ 129.499458] R13: ffff8801c89c4000 R14: 00000000000001b8 R15: 00000000000000fe [ 129.506708] FS: 0000000000000000(0000) GS:ffff8801db900000(0000) knlGS:0000000000000000 [ 129.514914] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 129.520775] CR2: 00000000004d96d0 CR3: 0000000038022006 CR4: 00000000001606a0 [ 129.528028] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 129.535277] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 129.542538] Call Trace: [ 129.545105] addrconf_get_prefix_route+0x30/0x2f0 [ 129.549932] __ipv6_ifa_notify+0x6b6/0x860 [ 129.554149] addrconf_ifdown+0xa20/0x12e0 [ 129.558280] ? __local_bh_enable_ip+0x65/0xb0 [ 129.562755] ? add_addr+0x180/0x180 [ 129.566364] addrconf_notify+0x8f1/0x1b30 [ 129.570493] ? inet6_ifinfo_notify+0x130/0x130 [ 129.575393] ? xfrm_policy_cache_flush+0x1d1/0x71d [ 129.580309] notifier_call_chain+0x114/0x1b0 [ 129.584701] rollback_registered_many+0x6b5/0xac0 [ 129.589524] ? free_netdev+0x3a0/0x3a0 [ 129.593392] ? default_device_exit_batch+0x1c4/0x3d0 [ 129.598477] ? mark_held_locks+0xc2/0x130 [ 129.602616] unregister_netdevice_many+0x43/0x210 [ 129.607441] default_device_exit_batch+0x313/0x3d0 [ 129.612352] ? unregister_netdevice_many+0x210/0x210 [ 129.617437] ? default_device_exit+0x1b9/0x240 [ 129.621996] ? lock_acquire+0x10f/0x380 [ 129.625960] ? do_wait_intr_irq+0x280/0x280 [ 129.630271] ? unregister_netdevice_many+0x210/0x210 [ 129.635355] ? dev_change_net_namespace+0xae0/0xae0 [ 129.640350] ops_exit_list.isra.3+0xfd/0x150 [ 129.644737] cleanup_net+0x3e9/0x880 [ 129.648431] ? net_drop_ns.part.6+0x70/0x70 [ 129.652734] ? lock_acquire+0x10f/0x380 [ 129.656691] process_one_work+0x86e/0x1670 [ 129.660906] ? pwq_dec_nr_in_flight+0x2b0/0x2b0 [ 129.665556] worker_thread+0xdc/0x1000 [ 129.669429] ? process_one_work+0x1670/0x1670 [ 129.673909] kthread+0x348/0x420 [ 129.677260] ? kthread_create_on_node+0xe0/0xe0 [ 129.681918] ret_from_fork+0x3a/0x50 [ 129.685613] Code: 6d 8f be 01 00 00 00 48 c7 c7 a0 e8 4c 90 e8 12 91 b2 fe 48 8d bb 68 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 3f 01 00 00 44 8b ab 68 02 [ 129.704685] RIP: addrconf_rt_table+0x126/0x2a0 RSP: ffff8801d91a76b8 [ 129.711360] ---[ end trace 800bd0a1576fd8e9 ]--- [ 129.716135] Kernel panic - not syncing: Fatal exception [ 129.721817] Kernel Offset: 0xd000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 129.732636] Rebooting in 86400 seconds..