Warning: Permanently added '10.128.0.198' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 72.987850][ T26] audit: type=1400 audit(1600636553.023:8): avc: denied { execmem } for pid=6871 comm="syz-executor163" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 73.002474][ T6872] IPVS: ftp: loaded support on port[0] = 21 [ 73.052856][ T6894] IPv6: ADDRCONF(NETDEV_CHANGE): gtp0: link becomes ready [ 73.064167][ T6894] device vlan0 entered promiscuous mode executing program [ 73.129395][ T6902] IPv6: ADDRCONF(NETDEV_CHANGE): gtp1: link becomes ready [ 73.140111][ T6902] device vlan0 entered promiscuous mode executing program [ 73.200298][ T6910] IPv6: ADDRCONF(NETDEV_CHANGE): gtp2: link becomes ready [ 73.210911][ T6910] device vlan0 entered promiscuous mode executing program [ 73.270645][ T6918] IPv6: ADDRCONF(NETDEV_CHANGE): gtp3: link becomes ready [ 73.282307][ T6918] device vlan0 entered promiscuous mode executing program [ 73.339246][ T6926] IPv6: ADDRCONF(NETDEV_CHANGE): gtp4: link becomes ready [ 73.349971][ T6926] device vlan0 entered promiscuous mode executing program executing program executing program executing program [ 73.410304][ T6934] IPv6: ADDRCONF(NETDEV_CHANGE): gtp5: link becomes ready [ 73.425056][ T6938] IPv6: ADDRCONF(NETDEV_CHANGE): gtp6: link becomes ready [ 73.441056][ T6942] IPv6: ADDRCONF(NETDEV_CHANGE): gtp7: link becomes ready executing program executing program [ 73.457485][ T6946] IPv6: ADDRCONF(NETDEV_CHANGE): gtp8: link becomes ready [ 73.473383][ T6950] IPv6: ADDRCONF(NETDEV_CHANGE): gtp9: link becomes ready [ 73.488090][ T6954] IPv6: ADDRCONF(NETDEV_CHANGE): gtp10: link becomes ready [ 73.498466][ T6954] device gtp6 entered promiscuous mode [ 73.504925][ T6954] device vlan0 entered promiscuous mode executing program [ 73.510660][ T6954] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.519888][ T6954] device gtp6 left promiscuous mode [ 73.569808][ T6962] IPv6: ADDRCONF(NETDEV_CHANGE): gtp11: link becomes ready [ 73.580523][ T6962] device gtp8 entered promiscuous mode [ 73.586986][ T6962] device vlan0 entered promiscuous mode [ 73.592803][ C0] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN [ 73.592809][ C0] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 73.592816][ C0] CPU: 0 PID: 6962 Comm: syz-executor163 Not tainted 5.9.0-rc5-syzkaller #0 [ 73.592820][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.592833][ C0] RIP: 0010:skb_release_data+0x232/0x910 [ 73.592840][ C0] Code: 48 c1 e8 03 42 80 3c 30 00 0f 85 ea 05 00 00 48 8b 0c 24 49 63 c4 48 c1 e0 04 48 8b 6c 08 30 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 ba 05 00 00 48 8b 5d 08 31 ff 49 89 dd 41 83 [ 73.592844][ C0] RSP: 0018:ffffc90000007a48 EFLAGS: 00010202 [ 73.592849][ C0] RAX: 0000000000000001 RBX: 0000000000000002 RCX: ffff88809d97e0c0 [ 73.592853][ C0] RDX: ffff88809d29a100 RSI: ffffffff86649685 RDI: 0000000000000008 [ 73.592857][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8b591e8f [ 73.592861][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 73.592865][ C0] R13: ffff88809d97e0c0 R14: dffffc0000000000 R15: ffff88809d97e0f0 [ 73.592871][ C0] FS: 00007f7ff5879700(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 [ 73.592875][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.592879][ C0] CR2: 00000000200004c0 CR3: 000000009cf0a000 CR4: 00000000001506f0 [ 73.592888][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.592891][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.592893][ C0] Call Trace: [ 73.592896][ C0] [ 73.592906][ C0] ? lock_acquire+0x1f3/0xae0 [ 73.592914][ C0] ? kfree_skb+0x7d/0x100 [ 73.592920][ C0] kfree_skb.part.0+0xc2/0x350 [ 73.592927][ C0] kfree_skb+0x7d/0x100 [ 73.592934][ C0] validate_xmit_skb+0x9d9/0xf00 [ 73.592942][ C0] ? lock_is_held_type+0xbb/0xf0 [ 73.592949][ C0] __dev_queue_xmit+0x990/0x2d70 [ 73.592957][ C0] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 73.592965][ C0] ? mark_held_locks+0x9f/0xe0 [ 73.592973][ C0] ? _raw_spin_unlock_irqrestore+0x6f/0x90 [ 73.592980][ C0] ? lockdep_hardirqs_on_prepare+0x19c/0x530 [ 73.592986][ C0] ? _raw_spin_unlock_irqrestore+0x6f/0x90 [ 73.592993][ C0] ? lockdep_hardirqs_on+0x53/0x100 [ 73.592999][ C0] ? _raw_spin_unlock_irqrestore+0x5c/0x90 [ 73.593008][ C0] mrp_join_timer+0x8a/0xc0 [ 73.593016][ C0] call_timer_fn+0x1ac/0x760 [ 73.593022][ C0] ? mrp_attr_event+0x280/0x280 [ 73.593029][ C0] ? msleep_interruptible+0x130/0x130 [ 73.593036][ C0] ? _raw_spin_unlock_irq+0x1f/0x80 [ 73.593056][ C0] ? lockdep_hardirqs_on_prepare+0x19c/0x530 [ 73.593062][ C0] ? _raw_spin_unlock_irq+0x1f/0x80 [ 73.593068][ C0] ? mrp_attr_event+0x280/0x280 [ 73.593075][ C0] __run_timers.part.0+0x67c/0xaa0 [ 73.593084][ C0] ? call_timer_fn+0x760/0x760 [ 73.593090][ C0] ? mark_lock+0xbc/0x17f0 [ 73.593097][ C0] ? mark_held_locks+0x9f/0xe0 [ 73.593105][ C0] run_timer_softirq+0xb3/0x1d0 [ 73.593113][ C0] __do_softirq+0x1f8/0xb23 [ 73.593122][ C0] asm_call_on_stack+0xf/0x20 [ 73.593125][ C0] [ 73.593134][ C0] do_softirq_own_stack+0x9d/0xd0 [ 73.593141][ C0] irq_exit_rcu+0x235/0x280 [ 73.593148][ C0] sysvec_apic_timer_interrupt+0x51/0xf0 [ 73.593155][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 73.593163][ C0] RIP: 0010:console_unlock+0xb4a/0xe60 [ 73.593168][ C0] Code: 89 48 c1 e8 03 42 80 3c 38 00 0f 85 18 03 00 00 48 83 3d 60 87 9d 08 00 0f 84 90 01 00 00 e8 6d 5b 17 00 48 8b 7c 24 30 57 9d <0f> 1f 44 00 00 8b 5c 24 64 31 ff 89 de e8 b4 57 17 00 85 db 0f 84 [ 73.593172][ C0] RSP: 0018:ffffc90001716ed0 EFLAGS: 00000293 [ 73.593177][ C0] RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000000006 [ 73.593181][ C0] RDX: ffff88809d29a100 RSI: ffffffff815ee453 RDI: 0000000000000293 [ 73.593185][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8d0b79e7 [ 73.593189][ C0] R10: fffffbfff1a16f3c R11: 0000000000000000 R12: ffffffff84eac090 [ 73.593193][ C0] R13: 000000000000003d R14: ffffffff8aba4650 R15: dffffc0000000000 [ 73.593201][ C0] ? netconsole_netdev_event+0x2b0/0x2b0 [ 73.593213][ C0] ? console_unlock+0xb43/0xe60 [ 73.593231][ C0] vprintk_emit+0x2ff/0x740 [ 73.593245][ C0] vprintk_func+0x8d/0x1d4 [ 73.593256][ C0] printk+0xba/0xed [ 73.593268][ C0] ? log_store.cold+0x16/0x16 [ 73.593282][ C0] ? __dev_open+0x1c6/0x470 [ 73.593296][ C0] ? __dev_set_promiscuity.cold+0x30e/0x35f [ 73.593306][ C0] __dev_set_promiscuity.cold+0x55/0x35f [ 73.593314][ C0] __dev_change_flags+0x3af/0x660 [ 73.593321][ C0] ? dev_set_allmulti+0x30/0x30 [ 73.593330][ C0] rtnl_configure_link+0xee/0x230 [ 73.593337][ C0] __rtnl_newlink+0x10b6/0x1740 [ 73.593346][ C0] ? rtnl_setlink+0x3b0/0x3b0 [ 73.593355][ C0] ? unwind_next_frame+0xe3b/0x1f90 [ 73.593362][ C0] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 73.593372][ C0] ? is_bpf_text_address+0xcb/0x160 [ 73.593379][ C0] ? kernel_text_address+0xbd/0xf0 [ 73.593385][ C0] ? __kernel_text_address+0x9/0x30 [ 73.593392][ C0] ? unwind_get_return_address+0x51/0x90 [ 73.593400][ C0] ? profile_setup.cold+0xc1/0xc1 [ 73.593407][ C0] ? arch_stack_walk+0x97/0xf0 [ 73.593417][ C0] ? stack_trace_save+0x8c/0xc0 [ 73.593424][ C0] ? stack_trace_consume_entry+0x160/0x160 [ 73.593440][ C0] ? lock_is_held_type+0xbb/0xf0 [ 73.593450][ C0] ? kmem_cache_alloc_trace+0x18e/0x300 [ 73.593457][ C0] rtnl_newlink+0x64/0xa0 [ 73.593464][ C0] ? __rtnl_newlink+0x1740/0x1740 [ 73.593470][ C0] rtnetlink_rcv_msg+0x44e/0xad0 [ 73.593477][ C0] ? rtnetlink_put_metrics+0x510/0x510 [ 73.593485][ C0] ? lock_acquire+0x1f3/0xae0 [ 73.593493][ C0] ? netlink_deliver_tap+0x146/0xb70 [ 73.593502][ C0] netlink_rcv_skb+0x15a/0x430 [ 73.593509][ C0] ? rtnetlink_put_metrics+0x510/0x510 [ 73.593516][ C0] ? netlink_ack+0xa10/0xa10 [ 73.593526][ C0] netlink_unicast+0x533/0x7d0 [ 73.593534][ C0] ? netlink_attachskb+0x810/0x810 [ 73.593543][ C0] netlink_sendmsg+0x856/0xd90 [ 73.593552][ C0] ? netlink_unicast+0x7d0/0x7d0 [ 73.593561][ C0] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 73.593568][ C0] ? netlink_unicast+0x7d0/0x7d0 [ 73.593575][ C0] sock_sendmsg+0xcf/0x120 [ 73.593582][ C0] ____sys_sendmsg+0x6e8/0x810 [ 73.593589][ C0] ? kernel_sendmsg+0x50/0x50 [ 73.593595][ C0] ? do_recvmmsg+0x6d0/0x6d0 [ 73.593603][ C0] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 73.593610][ C0] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 73.593617][ C0] ___sys_sendmsg+0xf3/0x170 [ 73.593625][ C0] ? sendmsg_copy_msghdr+0x160/0x160 [ 73.593633][ C0] ? __fget_files+0x272/0x400 [ 73.593640][ C0] ? lock_downgrade+0x830/0x830 [ 73.593649][ C0] ? __fget_files+0x294/0x400 [ 73.593657][ C0] ? __fget_light+0xea/0x280 [ 73.593664][ C0] __sys_sendmsg+0xe5/0x1b0 [ 73.593671][ C0] ? __sys_sendmsg_sock+0xb0/0xb0 [ 73.593679][ C0] ? __x64_sys_futex+0x382/0x4e0 [ 73.593687][ C0] ? check_preemption_disabled+0x50/0x130 [ 73.593694][ C0] ? syscall_enter_from_user_mode+0x1d/0x60 [ 73.593704][ C0] do_syscall_64+0x2d/0x70 [ 73.593711][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 73.593717][ C0] RIP: 0033:0x446ec9 [ 73.593724][ C0] Code: e8 bc b4 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 2b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 73.593728][ C0] RSP: 002b:00007f7ff5878db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 73.593734][ C0] RAX: ffffffffffffffda RBX: 00000000006dbc68 RCX: 0000000000446ec9 [ 73.593738][ C0] RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000005 [ 73.593742][ C0] RBP: 00000000006dbc60 R08: 0000000000000005 R09: 0000000000000000 [ 73.593746][ C0] R10: 0000000000000008 R11: 0000000000000246 R12: 00000000006dbc6c [ 73.593750][ C0] R13: 00007ffef56cebbf R14: 00007f7ff58799c0 R15: 0000000000000064 [ 73.593755][ C0] Modules linked in: [ 73.593765][ C0] ---[ end trace 483cb1693a33737a ]--- [ 73.593772][ C0] RIP: 0010:skb_release_data+0x232/0x910 [ 73.593779][ C0] Code: 48 c1 e8 03 42 80 3c 30 00 0f 85 ea 05 00 00 48 8b 0c 24 49 63 c4 48 c1 e0 04 48 8b 6c 08 30 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 ba 05 00 00 48 8b 5d 08 31 ff 49 89 dd 41 83 [ 73.593782][ C0] RSP: 0018:ffffc90000007a48 EFLAGS: 00010202 [ 73.593788][ C0] RAX: 0000000000000001 RBX: 0000000000000002 RCX: ffff88809d97e0c0 [ 73.593792][ C0] RDX: ffff88809d29a100 RSI: ffffffff86649685 RDI: 0000000000000008 [ 73.593796][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8b591e8f [ 73.593800][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 73.593804][ C0] R13: ffff88809d97e0c0 R14: dffffc0000000000 R15: ffff88809d97e0f0 [ 73.593810][ C0] FS: 00007f7ff5879700(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 [ 73.593814][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.593818][ C0] CR2: 00000000200004c0 CR3: 000000009cf0a000 CR4: 00000000001506f0 [ 73.593827][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.593831][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.593835][ C0] Kernel panic - not syncing: Fatal exception in interrupt [ 73.594897][ C0] Kernel Offset: disabled [ 74.490391][ C0] Rebooting in 86400 seconds..