random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) audit: type=1400 audit(1538655349.192:7): avc: denied { map } for pid=1777 comm="syz-executor161" path="/root/syz-executor161304275" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN NOPTI Modules linked in: CPU: 0 PID: 1777 Comm: syz-executor161 Not tainted 4.14.73+ #16 task: ffff8801d2f74680 task.stack: ffff8801d0ab0000 RIP: 0010:__bpf_skb_max_len net/core/filter.c:2283 [inline] RIP: 0010:____bpf_skb_change_tail net/core/filter.c:2370 [inline] RIP: 0010:bpf_skb_change_tail+0x58/0xb90 net/core/filter.c:2367 RSP: 0018:ffff8801d0ab7800 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8801d0976a80 RCX: 00000000fffffff9 RDX: 0000000000000043 RSI: 00000000000000fe RDI: 0000000000000218 RBP: 0000000000000000 R08: ffffffff9c412a40 R09: 0000000000000000 R10: 1ffff1003a156f2b R11: 0000000000000001 R12: 00000000000000fe R13: 1ffff1003a156f13 R14: ffffed003a156f30 R15: ffffc90000476088 FS: 0000000001237880(0000) GS:ffff8801db800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000200 CR3: 00000001d6eb2002 CR4: 00000000001606b0 Call Trace: ___bpf_prog_run+0x248e/0x5c70 kernel/bpf/core.c:1012 Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 eb 09 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 10 48 8d bd 18 02 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 29 09 00 00 48 8d bd 26 02 RIP: __bpf_skb_max_len net/core/filter.c:2283 [inline] RSP: ffff8801d0ab7800 RIP: ____bpf_skb_change_tail net/core/filter.c:2370 [inline] RSP: ffff8801d0ab7800 RIP: bpf_skb_change_tail+0x58/0xb90 net/core/filter.c:2367 RSP: ffff8801d0ab7800 ---[ end trace 862787b751063ac9 ]--- Kernel panic - not syncing: Fatal exception Kernel Offset: 0x18e00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) Rebooting in 86400 seconds..