Warning: Permanently added '10.128.0.126' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 50.426789] kauditd_printk_skb: 5 callbacks suppressed [ 50.426805] audit: type=1400 audit(1563585819.260:36): avc: denied { map } for pid=7874 comm="syz-executor277" path="/root/syz-executor277433476" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 50.430286] netlink: 4 bytes leftover after parsing attributes in process `syz-executor277'. [ 50.467285] kasan: CONFIG_KASAN_INLINE enabled [ 50.472747] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 50.480140] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 50.486357] CPU: 1 PID: 7874 Comm: syz-executor277 Not tainted 4.19.59 #32 [ 50.493348] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.502694] RIP: 0010:tcf_ife_init+0x221/0x17d0 [ 50.507344] Code: fb 48 c7 c2 99 43 81 85 be 01 00 00 00 48 c7 c7 60 da 79 88 e8 c0 26 d1 fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 83 [ 50.526225] RSP: 0018:ffff888096ed6ee0 EFLAGS: 00010246 [ 50.531583] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff11012e9c1b6 [ 50.538849] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000282 [ 50.546101] RBP: ffff888096ed7068 R08: ffff8880974e0540 R09: 0000000000000001 [ 50.553354] R10: ffffed1015d24732 R11: ffff8880ae923993 R12: 0000000000000001 [ 50.560608] R13: ffff88809b1eedc0 R14: ffff888096ed7040 R15: 0000000000000001 [ 50.567865] FS: 0000000001cd6880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 50.576088] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.581953] CR2: 0000000020000180 CR3: 00000000a0b53000 CR4: 00000000001406e0 [ 50.589203] Call Trace: [ 50.591799] ? __add_metainfo+0x480/0x480 [ 50.595957] ? lock_downgrade+0x810/0x810 [ 50.600090] ? kasan_check_write+0x14/0x20 [ 50.604306] ? do_raw_read_unlock+0x3f/0x70 [ 50.608611] tcf_action_init_1+0x804/0xc40 [ 50.612847] ? tcf_action_dump_old+0x80/0x80 [ 50.617236] ? __lock_acquire+0x6eb/0x48f0 [ 50.621452] ? __lock_acquire+0x6eb/0x48f0 [ 50.625673] ? memset+0x32/0x40 [ 50.628936] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.634478] tcf_action_init+0x23e/0x360 [ 50.638526] ? tcf_action_init_1+0xc40/0xc40 [ 50.642926] ? avc_has_extended_perms+0x10f0/0x10f0 [ 50.647941] ? lock_downgrade+0x810/0x810 [ 50.652078] tcf_action_add+0xe8/0x370 [ 50.655948] ? tca_action_gd+0x16b0/0x16b0 [ 50.660164] ? is_bpf_text_address+0xac/0x170 [ 50.664649] ? memset+0x32/0x40 [ 50.667919] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.673441] ? nla_parse+0x1fc/0x2f0 [ 50.677153] tc_ctl_action+0x37a/0x46f [ 50.681025] ? tcf_action_add+0x370/0x370 [ 50.685169] ? __lock_is_held+0xb6/0x140 [ 50.689302] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.694842] ? tcf_action_add+0x370/0x370 [ 50.698976] rtnetlink_rcv_msg+0x463/0xb00 [ 50.703194] ? rtnetlink_put_metrics+0x570/0x570 [ 50.707941] ? netlink_deliver_tap+0x22d/0xc20 [ 50.712506] ? find_held_lock+0x35/0x130 [ 50.716550] netlink_rcv_skb+0x17d/0x460 [ 50.720608] ? rtnetlink_put_metrics+0x570/0x570 [ 50.725348] ? netlink_ack+0xb50/0xb50 [ 50.729220] ? kasan_check_read+0x11/0x20 [ 50.733353] ? netlink_deliver_tap+0x254/0xc20 [ 50.737917] rtnetlink_rcv+0x1d/0x30 [ 50.741609] netlink_unicast+0x537/0x720 [ 50.745940] ? netlink_attachskb+0x770/0x770 [ 50.750445] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.755966] netlink_sendmsg+0x8ae/0xd70 [ 50.760010] ? netlink_unicast+0x720/0x720 [ 50.764245] ? selinux_socket_sendmsg+0x36/0x40 [ 50.768912] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.774449] ? security_socket_sendmsg+0x8d/0xc0 [ 50.779188] ? netlink_unicast+0x720/0x720 [ 50.783407] sock_sendmsg+0xd7/0x130 [ 50.787101] ___sys_sendmsg+0x803/0x920 [ 50.791055] ? copy_msghdr_from_user+0x430/0x430 [ 50.795803] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.801322] ? __handle_mm_fault+0x7d1/0x3f80 [ 50.805802] ? vmf_insert_mixed_mkwrite+0x90/0x90 [ 50.810626] ? find_held_lock+0x35/0x130 [ 50.814674] ? __do_page_fault+0x676/0xe90 [ 50.818907] ? find_held_lock+0x35/0x130 [ 50.822982] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.828519] ? __fget_light+0x1a9/0x230 [ 50.832476] ? __fdget+0x1b/0x20 [ 50.835825] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.841377] __sys_sendmsg+0x105/0x1d0 [ 50.845272] ? __ia32_sys_shutdown+0x80/0x80 [ 50.849678] ? up_read+0x1a/0x110 [ 50.853123] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.857884] ? do_syscall_64+0x26/0x620 [ 50.861845] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.867203] ? do_syscall_64+0x26/0x620 [ 50.871161] __x64_sys_sendmsg+0x78/0xb0 [ 50.875223] do_syscall_64+0xfd/0x620 [ 50.879028] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.884219] RIP: 0033:0x4401d9 [ 50.887393] 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 [ 50.906275] RSP: 002b:00007fff4283e4c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 50.913990] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401d9 [ 50.921341] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 50.928594] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 50.935848] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a60 [ 50.943120] R13: 0000000000401af0 R14: 0000000000000000 R15: 0000000000000000 [ 50.950875] Modules linked in: [ 50.954508] ---[ end trace 700de6051900a398 ]--- [ 50.959281] RIP: 0010:tcf_ife_init+0x221/0x17d0 [ 50.964022] Code: fb 48 c7 c2 99 43 81 85 be 01 00 00 00 48 c7 c7 60 da 79 88 e8 c0 26 d1 fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 83 [ 50.982982] RSP: 0018:ffff888096ed6ee0 EFLAGS: 00010246 [ 50.988364] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff11012e9c1b6 [ 50.995703] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000282 [ 51.003017] RBP: ffff888096ed7068 R08: ffff8880974e0540 R09: 0000000000000001 [ 51.010301] R10: ffffed1015d24732 R11: ffff8880ae923993 R12: 0000000000000001 [ 51.017647] R13: ffff88809b1eedc0 R14: ffff888096ed7040 R15: 0000000000000001 [ 51.024992] FS: 0000000001cd6880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 51.033273] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.039172] CR2: 0000000020000180 CR3: 00000000a0b53000 CR4: 00000000001406e0 [ 51.046475] Kernel panic - not syncing: Fatal exception [ 51.052747] Kernel Offset: disabled [ 51.056367] Rebooting in 86400 seconds..