Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 10.089621] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 31.555386] random: sshd: uninitialized urandom read (32 bytes read) [ 31.603155] random: crng init done Warning: Permanently added '10.128.0.46' (ECDSA) to the list of known hosts. 2018/12/06 05:33:41 parsed 1 programs 2018/12/06 05:33:42 executed programs: 0 [ 58.099722] audit: type=1400 audit(1544074426.804:5): avc: denied { associate } for pid=2079 comm="syz-executor0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 2018/12/06 05:33:47 executed programs: 80 2018/12/06 05:33:52 executed programs: 504 2018/12/06 05:33:57 executed programs: 929 [ 70.862320] kasan: CONFIG_KASAN_INLINE enabled [ 70.867083] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 70.892055] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 70.898324] Modules linked in: [ 70.901653] CPU: 1 PID: 10948 Comm: syz-executor3 Not tainted 4.9.143+ #75 [ 70.908654] task: ffff8801c6374740 task.stack: ffff8801d7210000 [ 70.914703] RIP: 0010:[] [] n_tty_set_termios+0x2a3/0xd30 [ 70.923591] RSP: 0018:ffff8801d72177b0 EFLAGS: 00010203 [ 70.929215] RAX: 0000000000000006 RBX: 0000000000000000 RCX: 000000000000000b [ 70.936477] RDX: dffffc0000000000 RSI: ffffffff81d3041f RDI: ffff8801d7217854 [ 70.943752] RBP: ffff8801d72177e8 R08: ffff8801c6375060 R09: 39dcd536341304cb [ 70.951015] R10: ffff8801c6374740 R11: 0000000000000001 R12: ffff8801c9134400 [ 70.958295] R13: ffff8801c91347b4 R14: 000000000000005d R15: ffff8801d7217848 [ 70.965566] FS: 00007f7024cc8700(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 [ 70.973791] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.979668] CR2: 0000000020000000 CR3: 00000001c8fa0000 CR4: 00000000001606b0 [ 70.986937] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.994204] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.001465] Stack: [ 71.003602] ffff8801c9134400 ffff880100000006 ffff8801c6e56740 ffffffff81d30190 [ 71.011684] dffffc0000000000 ffff8801c91347cc ffff8801c9134400 ffff8801d72178d0 [ 71.019691] ffffffff81d3b0f6 7fffffff00000001 00ff8801000000bf 1ffff1003ae42f05 [ 71.027720] Call Trace: [ 71.030288] [] ? process_echoes+0x150/0x150 [ 71.036235] [] tty_set_termios+0x626/0x8a0 [ 71.042095] [] ? tty_wait_until_sent+0x4d0/0x4d0 [ 71.048474] [] set_termios+0x311/0x520 [ 71.053987] [] ? __tty_perform_flush+0x220/0x220 [ 71.060369] [] ? ldsem_down_read+0x32/0x40 [ 71.066241] [] tty_mode_ioctl+0x8c2/0x980 [ 71.072012] [] ? tty_perform_flush+0x80/0x80 [ 71.078044] [] ? __ldsem_down_read_nested+0xce/0x610 [ 71.084769] [] ? ldsem_down_read+0x32/0x40 [ 71.090631] [] ? __ldsem_wake+0x330/0x330 [ 71.096402] [] n_tty_ioctl_helper+0x44/0x370 [ 71.102437] [] n_tty_ioctl+0x46/0x2e0 [ 71.107863] [] ? ldsem_down_read+0x32/0x40 [ 71.113720] [] tty_ioctl+0x440/0x2190 [ 71.119178] [] ? n_tty_receive_buf+0x40/0x40 [ 71.125211] [] ? no_tty+0xa0/0xa0 [ 71.130288] [] ? avc_ss_reset+0x110/0x110 [ 71.136061] [] ? __lock_acquire+0x654/0x4a10 [ 71.142094] [] ? __might_sleep+0x95/0x1a0 [ 71.147865] [] ? no_tty+0xa0/0xa0 [ 71.152943] [] do_vfs_ioctl+0x1ac/0x11a0 [ 71.158635] [] ? ioctl_preallocate+0x220/0x220 [ 71.164843] [] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 71.172351] [] ? check_preemption_disabled+0x3b/0x200 [ 71.179168] [] ? __fget+0x214/0x3d0 [ 71.184419] [] ? __fget+0x23b/0x3d0 [ 71.189685] [] ? __fget+0x47/0x3d0 [ 71.194852] [] ? security_file_ioctl+0x8f/0xc0 [ 71.201061] [] SyS_ioctl+0x8f/0xc0 [ 71.206255] [] ? do_vfs_ioctl+0x11a0/0x11a0 [ 71.212204] [] do_syscall_64+0x19f/0x550 [ 71.217889] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 71.224788] Code: d2 0f 85 9b 09 00 00 41 8b 84 24 b4 03 00 00 89 45 d0 e8 a1 b7 5e ff 4c 89 f1 8b 45 d0 48 ba 00 00 00 00 00 fc ff df 48 c1 e9 03 <0f> b6 14 11 4c 89 f1 83 e1 07 d1 e8 83 e0 01 38 ca 7f 08 84 d2 [ 71.251819] RIP [] n_tty_set_termios+0x2a3/0xd30 [ 71.258324] RSP [ 71.265592] ---[ end trace d0969deb9e62f85c ]--- [ 71.271499] Kernel panic - not syncing: Fatal exception [ 71.277396] Kernel Offset: disabled [ 71.281006] Rebooting in 86400 seconds..