[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   18.313620] random: sshd: uninitialized urandom read (32 bytes read, 35 bits of entropy available)
[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   20.165952] random: sshd: uninitialized urandom read (32 bytes read, 38 bits of entropy available)
[   20.575393] random: sshd: uninitialized urandom read (32 bytes read, 40 bits of entropy available)
[   21.337264] random: sshd: uninitialized urandom read (32 bytes read, 82 bits of entropy available)
[   21.521998] random: sshd: uninitialized urandom read (32 bytes read, 86 bits of entropy available)
Warning: Permanently added '10.128.0.54' (ECDSA) to the list of known hosts.
[   26.917919] random: sshd: uninitialized urandom read (32 bytes read, 92 bits of entropy available)
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[   27.306892] kasan: CONFIG_KASAN_INLINE enabled
[   27.311329] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
[   27.324154] Dumping ftrace buffer:
[   27.327669]    (ftrace buffer empty)
[   27.331346] Modules linked in:
[   27.334617] CPU: 1 PID: 3329 Comm: syzkaller750016 Not tainted 4.4.111-g7902639 #18
[   27.342386] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   27.351733] task: ffff8801d1034740 task.stack: ffff8800b45d0000
[   27.357755] RIP: 0010:[<ffffffff825b9e9b>]  [<ffffffff825b9e9b>] sg_remove_scat.isra.17+0x17b/0x2d0
[   27.367033] RSP: 0018:ffff8800b45d7ab0  EFLAGS: 00010202
[   27.372447] RAX: 1ffff1003a0db44d RBX: ffff8801d06da258 RCX: 0000000000000001
[   27.379683] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffff8801d57acff4
[   27.386920] RBP: ffff8800b45d7b00 R08: 0000000000000000 R09: 0000000000000001
[   27.394159] R10: 0000000000000000 R11: 1ffff100168baf30 R12: 0000000000000001
[   27.401397] R13: 0000000000000008 R14: 0000000000000000 R15: dffffc0000000000
[   27.408638] FS:  0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f7717b40
[   27.416830] CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
[   27.422680] CR2: 0000000020603000 CR3: 00000000b4f52000 CR4: 0000000000160670
[   27.429920] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.437158] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.444395] Stack:
[   27.446514]  ffff8801d06da270 ffffed003a0db44b ffffed003a0db44e ffff8801d06da268
[   27.455396]  ffff8801d57acfd8 ffff8801d06da240 0000000000000000 0000000000000000
[   27.463356]  0000000000000000 ffff8801d06da338 ffff8800b45d7b40 ffffffff825ba2a5
[   27.471316] Call Trace:
[   27.473884]  [<ffffffff825ba2a5>] sg_finish_rem_req+0x2b5/0x340
[   27.479911]  [<ffffffff825bc0c1>] sg_read+0xa21/0x1490
[   27.485158]  [<ffffffff812dfc23>] ? do_futex+0x3e3/0x1670
[   27.490661]  [<ffffffff825bb6a0>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   27.497295]  [<ffffffff81236430>] ? debug_check_no_locks_freed+0x2c0/0x2c0
[   27.504278]  [<ffffffff81577cc7>] ? __fget+0x47/0x3b0
[   27.509435]  [<ffffffff825bb6a0>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   27.516074]  [<ffffffff8151c383>] __vfs_read+0x103/0x440
[   27.521492]  [<ffffffff81522710>] ? fput+0x20/0x150
[   27.526477]  [<ffffffff8151c280>] ? vfs_iter_write+0x2d0/0x2d0
[   27.532415]  [<ffffffff815e927d>] ? fsnotify+0x5ad/0xee0
[   27.537832]  [<ffffffff815e9bb0>] ? fsnotify+0xee0/0xee0
[   27.543265]  [<ffffffff81b4dfe9>] ? avc_policy_seqno+0x9/0x20
[   27.549120]  [<ffffffff81b5f6d8>] ? selinux_file_permission+0x348/0x460
[   27.555841]  [<ffffffff81b44ed9>] ? security_file_permission+0x89/0x1e0
[   27.562649]  [<ffffffff8151df10>] ? rw_verify_area+0x100/0x2f0
[   27.568588]  [<ffffffff8151e223>] vfs_read+0x123/0x3a0
[   27.573830]  [<ffffffff81520b69>] SyS_read+0xd9/0x1b0
[   27.578986]  [<ffffffff81520a90>] ? do_sendfile+0xd30/0xd30
[   27.584667]  [<ffffffff81006b47>] ? do_fast_syscall_32+0xd7/0x890
[   27.590864]  [<ffffffff81520a90>] ? do_sendfile+0xd30/0xd30
[   27.596541]  [<ffffffff81006d84>] do_fast_syscall_32+0x314/0x890
[   27.602659]  [<ffffffff8377722a>] sysenter_flags_fixed+0xd/0x17
[   27.608681] Code: 45 b8 eb 3e e8 07 60 da fe 48 8b 45 c8 48 c1 e8 03 42 80 3c 38 00 0f 85 3a 01 00 00 4c 8b 73 10 4b 8d 14 2e 48 89 d1 48 c1 e9 03 <42> 80 3c 39 00 0f 85 0b 01 00 00 48 8b 12 49 83 c5 08 48 85 d2 
[   27.635197] RIP  [<ffffffff825b9e9b>] sg_remove_scat.isra.17+0x17b/0x2d0
[   27.642122]  RSP <ffff8800b45d7ab0>
[   27.650245] ---[ end trace d407b340baa9f4fc ]---
[   27.655126] Kernel panic - not syncing: Fatal exception
[   27.660929] Dumping ftrace buffer:
[   27.664436]    (ftrace buffer empty)
[   27.668112] Kernel Offset: disabled
[   27.671705] Rebooting in 86400 seconds..