kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 5537 Comm: syz-executor2 Not tainted 4.4.106-g1700518 #9 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801d5a897c0 task.stack: ffff8801d1e88000 RIP: 0010:[] [] __list_del_entry+0x86/0x1d0 lib/list_debug.c:57 RSP: 0018:ffff8801d1e8f518 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8801cd1e4090 RDX: 0000000000000000 RSI: ffffffff85515940 RDI: ffff8801cd1e4098 RBP: ffff8801d1e8f530 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 1ffff1003a3d1e72 R12: 0000000000000000 R13: ffff8801cd1e4039 R14: ffff8801cd1e40b8 R15: 00000000ffffffde FS: 00007f80e3c0d700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0aa63aac50 CR3: 00000001d1269000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff8801cd1e40b8 ffff8801cd1e4090 ffff8801ce7519c0 ffff8801d1e8f548 ffffffff81d62d0d ffff8801cd1e4090 ffff8801d1e8f568 ffffffff832ab16e ffff8801d9d6e600 ffff8801cd1e4090 ffff8801d1e8f588 ffffffff832ca6b3 Call Trace: [] list_del+0xd/0x70 lib/list_debug.c:77 [] xfrm_state_walk_done+0x6e/0xa0 net/xfrm/xfrm_state.c:1675 [] xfrm_dump_sa_done+0x73/0xa0 net/xfrm/xfrm_user.c:913 [] netlink_dump+0x871/0xb40 net/netlink/af_netlink.c:2158 [] __netlink_dump_start+0x52e/0x7c0 net/netlink/af_netlink.c:2223 [] netlink_dump_start include/linux/netlink.h:175 [inline] [] xfrm_user_rcv_msg+0x5bd/0x6b0 net/xfrm/xfrm_user.c:2512 [] netlink_rcv_skb+0x13e/0x370 net/netlink/af_netlink.c:2305 [] xfrm_netlink_rcv+0x6f/0x90 net/xfrm/xfrm_user.c:2533 [] netlink_unicast_kernel net/netlink/af_netlink.c:1223 [inline] [] netlink_unicast+0x522/0x760 net/netlink/af_netlink.c:1249 [] netlink_sendmsg+0x8e8/0xc50 net/netlink/af_netlink.c:1803 [] sock_sendmsg_nosec net/socket.c:625 [inline] [] sock_sendmsg+0xca/0x110 net/socket.c:635 [] sock_write_iter+0x226/0x3b0 net/socket.c:834 [] do_iter_readv_writev+0x138/0x1e0 fs/read_write.c:664 [] do_readv_writev+0x2d2/0x6e0 fs/read_write.c:808 [] vfs_writev+0x7b/0xb0 fs/read_write.c:847 [] SYSC_writev fs/read_write.c:880 [inline] [] SyS_writev+0xd9/0x240 fs/read_write.c:872 [] entry_SYSCALL_64_fastpath+0x16/0x76 Code: c4 0f 84 94 00 00 00 48 b8 00 02 00 00 00 00 ad de 48 39 c3 0f 84 a5 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 e8 00 00 00 4c 8b 03 49 39 c8 0f 85 9b 00 00 RIP [] __list_del_entry+0x86/0x1d0 lib/list_debug.c:57 RSP ---[ end trace c8edb983e1f1dd86 ]---