SELinux: failure in selinux_parse_skb(), unable to parse packet Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffff8343632e CPU: 0 PID: 15159 Comm: syz-executor1 Not tainted 4.4.153-g5e24b4e #90 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 2c143b741db6877c ffff8801d0fc7580 ffffffff81e162ed ffffffff83a44c60 00000000ffffffff ffff8800ad6592c0 ffff8801d0fc78c0 0000000000001000 ffff8801d0fc7640 ffffffff8140d474 0000000041b58ab3 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] panic+0x19e/0x38d kernel/panic.c:112 [] __stack_chk_fail+0x22/0x30 kernel/panic.c:506 [] ip6_xmit+0x18ae/0x1a00 net/ipv6/ip6_output.c:256 [] inet6_csk_xmit+0x245/0x490 net/ipv6/inet6_connection_sock.c:176 [] l2tp_xmit_core net/l2tp/l2tp_core.c:1084 [inline] [] l2tp_xmit_skb+0xb9c/0xe80 net/l2tp/l2tp_core.c:1179 [] pppol2tp_sendmsg+0x4e0/0x7d0 net/l2tp/l2tp_ppp.c:355 [] sock_sendmsg_nosec net/socket.c:638 [inline] [] sock_sendmsg+0xcc/0x110 net/socket.c:648 [] ___sys_sendmsg+0x441/0x880 net/socket.c:1975 Mem-Info: active_anon:43469 inactive_anon:73 isolated_anon:0 active_file:5994 inactive_file:28838 isolated_file:0 unevictable:0 dirty:192 writeback:0 unstable:0 slab_reclaimable:8476 slab_unreclaimable:59886 mapped:71513 shmem:86 pagetables:946 bounce:0 free:1406208 free_pcp:539 free_cma:0 DMA free:15904kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15992kB managed:15904kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes lowmem_reserve[]: 0 2908 6409 6409 DMA32 free:2556872kB min:30596kB low:38244kB high:45892kB active_anon:81568kB inactive_anon:116kB active_file:11336kB inactive_file:48372kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3129292kB managed:2980432kB mlocked:0kB dirty:268kB writeback:0kB mapped:122716kB shmem:128kB slab_reclaimable:16664kB slab_unreclaimable:104872kB kernel_stack:2464kB pagetables:1880kB unstable:0kB bounce:0kB free_pcp:1196kB local_pcp:484kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 3500 3500 Normal free:3052056kB min:36820kB low:46024kB high:55228kB active_anon:92308kB inactive_anon:176kB active_file:12640kB inactive_file:66980kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:4718592kB managed:3584660kB mlocked:0kB dirty:500kB writeback:0kB mapped:163336kB shmem:216kB slab_reclaimable:17240kB slab_unreclaimable:134672kB kernel_stack:3584kB pagetables:1904kB unstable:0kB bounce:0kB free_pcp:960kB local_pcp:472kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 0 DMA: 0*4kB 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15904kB DMA32: 1248*4kB (UME) 1537*8kB (UME) 962*16kB (UME) 262*32kB (UME) 65*64kB (UME) 46*128kB (UM) 34*256kB (UM) 55*512kB (UM) 47*1024kB (UME) 4*2048kB (ME) 589*4096kB (M) = 2556840kB Normal: 1408*4kB (UME) 1847*8kB (UME) 1082*16kB (UME) 77*32kB (UME) 136*64kB (UM) 68*128kB (UM) 55*256kB (UME) 45*512kB (UM) 42*1024kB (M) 3*2048kB (ME) 710*4096kB (UM) = 3052024kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 34917 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965969 pages RAM 0 pages HighMem/MovableOnly 320720 pages reserved [] __sys_sendmmsg+0x12e/0x2e0 net/socket.c:2060 [] SYSC_sendmmsg net/socket.c:2090 [inline] [] SyS_sendmmsg+0x35/0x60 net/socket.c:2085 [] entry_SYSCALL_64_fastpath+0x22/0x9e Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..