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: 1 PID: 21627 Comm: syz-executor1 Not tainted 4.19.0-rc4-next-20180921+ #77 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'ppp0' (00000000b88e8659): kobject_add_internal: parent: 'net', set: 'devices' RIP: 0010:nla_get_be32 include/net/netlink.h:1106 [inline] RIP: 0010:ctnetlink_alloc_filter+0xb9/0x200 net/netfilter/nf_conntrack_netlink.c:843 Code: 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 57 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 6c 24 40 49 8d 7d 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 06 RSP: 0018:ffff8801d88df1a0 EFLAGS: 00010247 kobject: 'loop0' (000000005a711244): kobject_uevent_env RAX: dffffc0000000000 RBX: ffff8801cb2b1680 RCX: ffffc90007a84000 kobject: 'ppp0' (00000000b88e8659): kobject_uevent_env RDX: 0000000000000000 RSI: ffffffff864e6f4d RDI: 0000000000000004 RBP: ffff8801d88df1b8 R08: ffff88019a6c6400 R09: ffffed003b5a5b57 R10: ffffed003b5a5b57 R11: ffff8801dad2dabb R12: ffff8801d88df500 R13: 0000000000000000 R14: ffff8801be1138f8 R15: ffff8801be1138d1 FS: 00007fe7f06ed700(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000072c000 CR3: 00000001d823e000 CR4: 00000000001426e0 Call Trace: ctnetlink_start+0x10b/0x1b0 net/netfilter/nf_conntrack_netlink.c:857 __netlink_dump_start+0x43e/0x6f0 net/netlink/af_netlink.c:2312 kobject: 'loop0' (000000005a711244): fill_kobj_path: path = '/devices/virtual/block/loop0' netlink_dump_start include/linux/netlink.h:213 [inline] ctnetlink_get_conntrack+0x777/0x9f0 net/netfilter/nf_conntrack_netlink.c:1320 kobject: 'ppp0' (00000000b88e8659): fill_kobj_path: path = '/devices/virtual/net/ppp0' kobject: 'kvm' (000000001c47631a): kobject_uevent_env kobject: 'kvm' (000000001c47631a): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'queues' (0000000039d7d125): kobject_add_internal: parent: 'ppp0', set: '' nfnetlink_rcv_msg+0xdd3/0x10c0 net/netfilter/nfnetlink.c:228 kobject: 'loop4' (000000001936654f): kobject_uevent_env kobject: 'loop4' (000000001936654f): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'queues' (0000000039d7d125): kobject_uevent_env netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2447 kobject: 'queues' (0000000039d7d125): kobject_uevent_env: filter function caused the event to drop! nfnetlink_rcv+0x1c0/0x4d0 net/netfilter/nfnetlink.c:560 kobject: 'rx-0' (000000004d2e6d64): kobject_add_internal: parent: 'queues', set: 'queues' 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 kobject: 'rx-0' (000000004d2e6d64): kobject_uevent_env kobject: 'kvm' (000000001c47631a): kobject_uevent_env 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: 'kvm' (000000001c47631a): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'rx-0' (000000004d2e6d64): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/rx-0' kobject: 'kvm' (000000001c47631a): kobject_uevent_env __sys_sendmsg+0x11d/0x280 net/socket.c:2155 kobject: 'kvm' (000000001c47631a): fill_kobj_path: path = '/devices/virtual/misc/kvm' __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 kobject: 'kvm' (000000001c47631a): kobject_uevent_env entry_SYSCALL_64_after_hwframe+0x49/0xbe kobject: 'kvm' (000000001c47631a): fill_kobj_path: path = '/devices/virtual/misc/kvm' 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:00007fe7f06ecc78 EFLAGS: 00000246 kobject: 'tx-0' (000000004e5cccca): kobject_add_internal: parent: 'queues', set: 'queues' ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fe7f06ed6d4 RCX: 0000000000457679 RDX: 0000000000000000 RSI: 0000000020d65000 RDI: 0000000000000006 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff kobject: 'tx-0' (000000004e5cccca): kobject_uevent_env R13: 00000000004d5520 R14: 00000000004c38d2 R15: 0000000000000000 Modules linked in: ---[ end trace 98ce6e75c68cc963 ]--- kobject: 'loop2' (00000000b8e2d567): kobject_uevent_env RIP: 0010:nla_get_be32 include/net/netlink.h:1106 [inline] RIP: 0010:ctnetlink_alloc_filter+0xb9/0x200 net/netfilter/nf_conntrack_netlink.c:843 kobject: 'kvm' (000000001c47631a): kobject_uevent_env Code: 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 57 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 6c 24 40 49 8d 7d 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 06 kobject: 'loop2' (00000000b8e2d567): fill_kobj_path: path = '/devices/virtual/block/loop2' RSP: 0018:ffff8801d88df1a0 EFLAGS: 00010247 kobject: 'loop0' (000000005a711244): kobject_uevent_env kobject: 'kvm' (000000001c47631a): fill_kobj_path: path = '/devices/virtual/misc/kvm' RAX: dffffc0000000000 RBX: ffff8801cb2b1680 RCX: ffffc90007a84000 kobject: 'loop0' (000000005a711244): fill_kobj_path: path = '/devices/virtual/block/loop0' RDX: 0000000000000000 RSI: ffffffff864e6f4d RDI: 0000000000000004 kobject: 'loop4' (000000001936654f): kobject_uevent_env kobject: 'tx-0' (000000004e5cccca): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/tx-0' kobject: 'loop4' (000000001936654f): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000002500f9a6): kobject_uevent_env RBP: ffff8801d88df1b8 R08: ffff88019a6c6400 R09: ffffed003b5a5b57 kobject: 'loop5' (000000002500f9a6): fill_kobj_path: path = '/devices/virtual/block/loop5' R10: ffffed003b5a5b57 R11: ffff8801dad2dabb R12: ffff8801d88df500 kobject: 'rx-0' (000000004d2e6d64): kobject_cleanup, parent 0000000039d7d125 R13: 0000000000000000 R14: ffff8801be1138f8 R15: ffff8801be1138d1 FS: 00007fe7f06ed700(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 kobject: 'rx-0' (000000004d2e6d64): auto cleanup 'remove' event CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000017957d0 CR3: 00000001d823e000 CR4: 00000000001406e0