list_add corruption. next->prev should be prev (ffff888091d3aa60), but was 0000000000000002. (next=ffff8880984df5f0). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:23! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 11985 Comm: syz-executor.4 Not tainted 5.1.0-rc1+ #34 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_add_valid.cold+0xf/0x3c lib/list_debug.c:23 Code: 77 fe eb d5 4c 89 e7 e8 ba 6a 77 fe eb a3 4c 89 f7 e8 b0 6a 77 fe e9 56 ff ff ff 4c 89 e1 48 c7 c7 00 d5 a1 87 e8 f0 ce 29 fe <0f> 0b 48 89 f2 4c 89 e1 4c 89 ee 48 c7 c7 40 d6 a1 87 e8 d9 ce 29 RSP: 0018:ffff888085b3f4b0 EFLAGS: 00010286 RAX: 0000000000000075 RBX: ffff888085b3f5d8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815ae266 RDI: ffffed1010b67e88 RBP: ffff888085b3f4c8 R08: 0000000000000075 R09: ffffed1015d05011 R10: ffffed1015d05010 R11: ffff8880ae828087 R12: ffff8880984df5f0 R13: ffff888085b3f5f0 R14: ffff888091d3aa40 R15: ffff888091d3aa60 FS: 00007f7a35de9700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 00000000a61fa000 CR4: 00000000001406f0 Call Trace: __list_add include/linux/list.h:60 [inline] list_add include/linux/list.h:79 [inline] rhashtable_walk_enter+0x1b0/0x390 lib/rhashtable.c:676 ila_xlat_nl_cmd_flush+0x244/0x1090 net/ipv6/ila/ila_xlat.c:388 genl_family_rcv_msg+0x6e1/0xd90 net/netlink/genetlink.c:601 genl_rcv_msg+0xca/0x16c net/netlink/genetlink.c:626 netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2485 genl_rcv+0x29/0x40 net/netlink/genetlink.c:637 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:632 ___sys_sendmsg+0x806/0x930 net/socket.c:2137 __sys_sendmsg+0x105/0x1d0 net/socket.c:2175 __do_sys_sendmsg net/socket.c:2184 [inline] __se_sys_sendmsg net/socket.c:2182 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2182 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458209 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f7a35de8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458209 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7a35de96d4 R13: 00000000004c57c8 R14: 00000000004d96b8 R15: 00000000ffffffff Modules linked in: ---[ end trace 25c5a70a6fa97765 ]--- RIP: 0010:__list_add_valid.cold+0xf/0x3c lib/list_debug.c:23 Code: 77 fe eb d5 4c 89 e7 e8 ba 6a 77 fe eb a3 4c 89 f7 e8 b0 6a 77 fe e9 56 ff ff ff 4c 89 e1 48 c7 c7 00 d5 a1 87 e8 f0 ce 29 fe <0f> 0b 48 89 f2 4c 89 e1 4c 89 ee 48 c7 c7 40 d6 a1 87 e8 d9 ce 29 RSP: 0018:ffff888085b3f4b0 EFLAGS: 00010286 RAX: 0000000000000075 RBX: ffff888085b3f5d8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815ae266 RDI: ffffed1010b67e88 RBP: ffff888085b3f4c8 R08: 0000000000000075 R09: ffffed1015d05011 R10: ffffed1015d05010 R11: ffff8880ae828087 R12: ffff8880984df5f0 R13: ffff888085b3f5f0 R14: ffff888091d3aa40 R15: ffff888091d3aa60 FS: 00007f7a35de9700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 00000000a61fa000 CR4: 00000000001406f0