kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 13719 Comm: syz-executor5 Not tainted 4.19.0-rc4-next-20180921+ #77 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:nla_get_be32 include/net/netlink.h:1106 [inline] RIP: 0010:ctnetlink_alloc_filter+0x14c/0x200 net/netfilter/nf_conntrack_netlink.c:844 Code: ea 03 80 3c 02 00 0f 85 be 00 00 00 4d 8b a4 24 a8 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 66 48 IPVS: ftp: loaded support on port[0] = 21 RSP: 0018:ffff880188527290 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: ffff8801ccd91f00 RCX: ffffc9000ba94000 RDX: 0000000000000000 RSI: ffffffff864e6f4d RDI: 0000000000000004 RBP: ffff8801885272a8 R08: ffff8801d30d81c0 R09: ffffed003b585b57 R10: ffffed003b585b57 R11: ffff8801dac2dabb R12: 0000000000000000 R13: 0000000027b2e873 R14: 000000000000019b R15: 00000000000000ff FS: 00007f14f8c9e700(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000072c000 CR3: 00000001c7cb5000 CR4: 00000000001406f0 Call Trace: ctnetlink_flush_conntrack net/netfilter/nf_conntrack_netlink.c:1227 [inline] ctnetlink_del_conntrack+0x65d/0x840 net/netfilter/nf_conntrack_netlink.c:1264 nfnetlink_rcv_msg+0xdd3/0x10c0 net/netfilter/nfnetlink.c:228 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2447 nfnetlink_rcv+0x1c0/0x4d0 net/netfilter/nfnetlink.c:560 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1336 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:632 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2117 kobject: 'loop1' (0000000083f3d70e): kobject_uevent_env kobject: 'loop1' (0000000083f3d70e): fill_kobj_path: path = '/devices/virtual/block/loop1' __sys_sendmsg+0x11d/0x280 net/socket.c:2155 __do_sys_sendmsg net/socket.c:2164 [inline] __se_sys_sendmsg net/socket.c:2162 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2162 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457679 Code: 1d b4 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f14f8c9dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f14f8c9e6d4 RCX: 0000000000457679 RDX: 0000000000000000 RSI: 0000000020d65000 RDI: 0000000000000004 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d5520 R14: 00000000004c38d2 R15: 0000000000000000 Modules linked in: kobject: 'rx-0' (0000000072fabd6d): kobject_cleanup, parent 0000000055fbd561 ---[ end trace 1d5e2df2813d0b57 ]--- kobject: 'loop4' (00000000646d6e29): kobject_uevent_env RIP: 0010:nla_get_be32 include/net/netlink.h:1106 [inline] RIP: 0010:ctnetlink_alloc_filter+0x14c/0x200 net/netfilter/nf_conntrack_netlink.c:844 kobject: 'loop4' (00000000646d6e29): fill_kobj_path: path = '/devices/virtual/block/loop4' Code: ea 03 80 3c 02 00 0f 85 be 00 00 00 4d 8b a4 24 a8 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 66 48 kobject: 'rx-0' (0000000072fabd6d): auto cleanup 'remove' event kobject: 'rx-0' (0000000072fabd6d): kobject_uevent_env kobject: 'rx-0' (0000000072fabd6d): kobject_uevent_env: uevent_suppress caused the event to drop! RSP: 0018:ffff880188527290 EFLAGS: 00010247 kobject: 'rx-0' (0000000072fabd6d): auto cleanup kobject_del kobject: 'rx-0' (0000000072fabd6d): calling ktype release RAX: dffffc0000000000 RBX: ffff8801ccd91f00 RCX: ffffc9000ba94000 kobject: 'rx-0': free name kobject: 'tx-0' (00000000697eccd1): kobject_cleanup, parent 0000000055fbd561 kobject: 'tx-0' (00000000697eccd1): auto cleanup 'remove' event RDX: 0000000000000000 RSI: ffffffff864e6f4d RDI: 0000000000000004 kobject: 'tx-0' (00000000697eccd1): kobject_uevent_env kobject: 'tx-0' (00000000697eccd1): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (00000000697eccd1): auto cleanup kobject_del RBP: ffff8801885272a8 R08: ffff8801d30d81c0 R09: ffffed003b585b57 kobject: 'tx-0' (00000000697eccd1): calling ktype release kobject: 'tx-0': free name kobject: 'loop4' (00000000646d6e29): kobject_uevent_env R10: ffffed003b585b57 R11: ffff8801dac2dabb R12: 0000000000000000 kobject: 'loop4' (00000000646d6e29): fill_kobj_path: path = '/devices/virtual/block/loop4' R13: 0000000027b2e873 R14: 000000000000019b R15: 00000000000000ff kobject: 'queues' (0000000055fbd561): kobject_cleanup, parent (null) kobject: 'queues' (0000000055fbd561): calling ktype release kobject: 'queues' (0000000055fbd561): kset_release kobject: 'queues': free name FS: 00007f14f8c9e700(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 kobject: 'ip6gre0' (00000000bfaab065): kobject_uevent_env kobject: 'ip6gre0' (00000000bfaab065): kobject_uevent_env: uevent_suppress caused the event to drop! CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'rx-0' (00000000d3752ee4): kobject_cleanup, parent 000000001363665d kobject: 'rx-0' (00000000d3752ee4): auto cleanup 'remove' event CR2: 00007ffe437bbe5c CR3: 00000001c7cb5000 CR4: 00000000001406f0 kobject: 'rx-0' (00000000d3752ee4): kobject_uevent_env kobject: 'rx-0' (00000000d3752ee4): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000d3752ee4): auto cleanup kobject_del kobject: 'rx-0' (00000000d3752ee4): calling ktype release