Warning: Permanently added '10.128.0.34' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.908377] audit: type=1400 audit(1587716013.651:8): avc: denied { execmem } for pid=6447 comm="syz-executor604" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 42.929336] kasan: CONFIG_KASAN_INLINE enabled [ 42.934062] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 42.941467] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 42.947700] CPU: 0 PID: 6447 Comm: syz-executor604 Not tainted 4.19.118-syzkaller #0 [ 42.955676] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.965039] RIP: 0010:fq_codel_enqueue+0xa6c/0x11d0 [ 42.970055] Code: 00 00 00 e8 76 a7 a8 fb 48 8b 44 24 30 80 38 00 0f 85 99 05 00 00 48 be 00 00 00 00 00 fc ff df 49 8b 06 48 89 c2 48 c1 ea 03 <80> 3c 32 00 0f 85 88 05 00 00 48 8b 10 48 8d 78 28 48 b9 00 00 00 [ 42.988945] RSP: 0018:ffff8880899d7800 EFLAGS: 00010246 [ 42.994302] RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000 [ 43.001747] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000000 [ 43.008999] RBP: ffff8880899d7900 R08: ffff8880a5d50040 R09: ffffffff8acfe008 [ 43.016260] R10: ffffffff8acfe010 R11: 0000000000000001 R12: 0000000000000000 [ 43.023520] R13: 0000000000000400 R14: ffff888087300180 R15: ffff8880899d79d0 [ 43.030782] FS: 0000000000b16880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 43.039090] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.044974] CR2: 00007fa686ded000 CR3: 00000000928b9000 CR4: 00000000001406f0 [ 43.052239] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.059485] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.066739] Call Trace: [ 43.069337] ? drop_func+0x60/0x60 [ 43.072885] ? __dev_queue_xmit+0x14aa/0x3040 [ 43.077383] __dev_queue_xmit+0x156b/0x3040 [ 43.081730] ? netdev_pick_tx+0x2f0/0x2f0 [ 43.085868] ? _copy_from_iter+0x313/0xb60 [ 43.090095] ? __phys_addr+0x9a/0x110 [ 43.093950] ? __check_object_size+0x171/0x42a [ 43.098528] ? skb_copy_datagram_from_iter+0x446/0x660 [ 43.103792] ? _copy_from_iter_full+0x22f/0x7d0 [ 43.108448] ? packet_sendmsg+0x3835/0x5f90 [ 43.112768] packet_sendmsg+0x3835/0x5f90 [ 43.116927] ? mark_held_locks+0xf0/0xf0 [ 43.120993] ? sock_has_perm+0x1e5/0x280 [ 43.125057] ? selinux_secmark_relabel_packet+0xd0/0xd0 [ 43.130415] ? reacquire_held_locks+0xb5/0x430 [ 43.135419] ? release_sock+0x1b/0x1c0 [ 43.139290] ? packet_notifier+0x830/0x830 [ 43.143595] ? find_held_lock+0x2d/0x110 [ 43.147639] ? packet_notifier+0x830/0x830 [ 43.151857] sock_sendmsg+0xcf/0x120 [ 43.155551] __sys_sendto+0x21a/0x330 [ 43.159332] ? __ia32_sys_getpeername+0xb0/0xb0 [ 43.163980] ? packet_do_bind+0x457/0xbf0 [ 43.168121] ? __sys_bind+0x13e/0x250 [ 43.171915] ? __ia32_sys_socketpair+0xf0/0xf0 [ 43.176474] ? security_socket_setsockopt+0x82/0xb0 [ 43.181472] __x64_sys_sendto+0xdd/0x1b0 [ 43.185517] ? lockdep_hardirqs_on+0x40b/0x5d0 [ 43.190097] do_syscall_64+0xf9/0x620 [ 43.193908] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.199090] RIP: 0033:0x4404e9 [ 43.202281] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 43.222120] RSP: 002b:00007ffe1dc87658 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 43.229819] RAX: ffffffffffffffda RBX: 00000000004a167e RCX: 00000000004404e9 [ 43.237080] RDX: 00000000000001e8 RSI: 0000000020000480 RDI: 0000000000000005 [ 43.244435] RBP: 54c6c2ff093a6d32 R08: 0000000000000000 R09: 0000000000000000 [ 43.251698] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000010000 [ 43.260014] R13: 0000000000401e00 R14: 0000000000000000 R15: 0000000000000000 [ 43.267272] Modules linked in: [ 43.270501] ---[ end trace d0252909689ba180 ]--- [ 43.275293] RIP: 0010:fq_codel_enqueue+0xa6c/0x11d0 [ 43.280348] Code: 00 00 00 e8 76 a7 a8 fb 48 8b 44 24 30 80 38 00 0f 85 99 05 00 00 48 be 00 00 00 00 00 fc ff df 49 8b 06 48 89 c2 48 c1 ea 03 <80> 3c 32 00 0f 85 88 05 00 00 48 8b 10 48 8d 78 28 48 b9 00 00 00 [ 43.301205] RSP: 0018:ffff8880899d7800 EFLAGS: 00010246 [ 43.306560] RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000 [ 43.313867] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000000 [ 43.321177] RBP: ffff8880899d7900 R08: ffff8880a5d50040 R09: ffffffff8acfe008 [ 43.328450] R10: ffffffff8acfe010 R11: 0000000000000001 R12: 0000000000000000 [ 43.336032] R13: 0000000000000400 R14: ffff888087300180 R15: ffff8880899d79d0 [ 43.343374] FS: 0000000000b16880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 43.352615] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.358595] CR2: 00007fa686ded000 CR3: 00000000928b9000 CR4: 00000000001406f0 [ 43.366045] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.373581] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.381126] Kernel panic - not syncing: Fatal exception in interrupt [ 43.388985] Kernel Offset: disabled [ 43.392612] Rebooting in 86400 seconds..