Warning: Permanently added '10.128.0.15' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 43.185235] kasan: CONFIG_KASAN_INLINE enabled [ 43.189664] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 43.202522] Dumping ftrace buffer: [ 43.206045] (ftrace buffer empty) [ 43.209730] Modules linked in: [ 43.213016] CPU: 1 PID: 2258 Comm: syz-executor687 Not tainted 4.4.153+ #94 [ 43.220088] task: ffff8800b07c4740 task.stack: ffff8801cc480000 [ 43.226143] RIP: 0010:[] [] udp_queue_rcv_skb+0x18f/0x1530 [ 43.235111] RSP: 0018:ffff8801cc487970 EFLAGS: 00010206 [ 43.240551] RAX: dffffc0000000000 RBX: ffff8801cc4b8000 RCX: 0000000000000000 [ 43.247804] RDX: 000000000000000c RSI: ffffffff823fd7c6 RDI: 0000000000000060 [ 43.255050] RBP: ffff8801cc4879b0 R08: 0000000000000001 R09: 0000000000000001 [ 43.262337] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8800b40b1b40 [ 43.269588] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8800b40b1b98 [ 43.276884] FS: 0000000000c6c880(0063) GS:ffff8801db700000(0000) knlGS:0000000000000000 [ 43.285090] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.290946] CR2: 0000000020000000 CR3: 00000001cf4b8000 CR4: 00000000001606b0 [ 43.298211] Stack: [ 43.300341] ffff8801cc4b8088 ffff880000000001 ffff8801cc4b8088 ffff8801cc4b8000 [ 43.308333] ffff8800b40b1b40 dffffc0000000000 ffff8800b40b1b98 0000000000000000 [ 43.316371] ffff8801cc487a20 ffffffff82167b8b ffff8801cc4b8430 ffff8801cc4b8188 [ 43.324360] Call Trace: [ 43.327075] [] release_sock+0x17b/0x500 [ 43.332692] [] udp_sendmsg+0x1152/0x1c70 [ 43.338388] [] ? udp_lib_close+0x20/0x20 [ 43.344073] [] ? udp_lib_unhash+0x630/0x630 [ 43.350017] [] ? trace_hardirqs_on+0x10/0x10 [ 43.356052] [] ? sock_has_perm+0x1c1/0x3f0 [ 43.361932] [] ? sock_has_perm+0x2a1/0x3f0 [ 43.367802] [] ? sock_has_perm+0x9f/0x3f0 [ 43.373591] [] ? selinux_msg_queue_alloc_security+0x2e0/0x2e0 [ 43.381114] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 43.387894] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 43.394638] [] ? check_preemption_disabled+0x3b/0x170 [ 43.401456] [] ? inet_sendmsg+0x143/0x4d0 [ 43.407233] [] inet_sendmsg+0x203/0x4d0 [ 43.412835] [] ? inet_sendmsg+0x73/0x4d0 [ 43.418521] [] ? inet_recvmsg+0x4c0/0x4c0 [ 43.424295] [] sock_sendmsg+0xbb/0x110 [ 43.429807] [] SyS_sendto+0x220/0x370 [ 43.435251] [] ? SyS_getpeername+0x2d0/0x2d0 [ 43.441285] [] ? mntput_no_expire+0xcc/0x6c0 [ 43.447319] [] ? __sock_release+0x260/0x260 [ 43.453343] [] ? mntput_no_expire+0xf8/0x6c0 [ 43.459383] [] ? dput.part.9+0x2a/0x760 [ 43.464985] [] ? __sock_release+0x260/0x260 [ 43.470934] [] ? task_work_run+0x152/0x190 [ 43.476796] [] ? int_ret_from_sys_call+0x52/0xa3 [ 43.483185] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 43.490001] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 43.496469] [] entry_SYSCALL_64_fastpath+0x1e/0x9a [ 43.503036] Code: 74 24 58 41 f6 c6 01 0f 85 39 08 00 00 e8 ea 70 ef fe 49 83 e6 fe 48 b8 00 00 00 00 00 fc ff df 49 8d 7e 60 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 01 0f 8e d1 0e 00 00 41 f6 46 60 04 [ 43.530101] RIP [] udp_queue_rcv_skb+0x18f/0x1530 [ 43.536688] RSP [ 43.540359] ---[ end trace 37d60884fe8cdd59 ]--- [ 43.545093] Kernel panic - not syncing: Fatal exception in interrupt [ 43.551969] Dumping ftrace buffer: [ 43.555491] (ftrace buffer empty) [ 43.559178] Kernel Offset: disabled [ 43.562834] Rebooting in 86400 seconds..