capability: warning: `syz-executor.1' uses 32-bit capabilities (legacy support in use) kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8947 Comm: syz-executor.4 Not tainted 4.19.34 #2 IPVS: ftp: loaded support on port[0] = 21 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:gre_timeout_obj_to_nlattr+0x77/0x1a0 net/netfilter/nf_conntrack_proto_gre.c:322 Code: 97 85 c7 00 f1 f1 f1 f1 c7 40 04 04 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 b0 96 d3 fb 48 89 d8 48 c1 e8 03 <42> 0f b6 14 38 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 RSP: 0018:ffff88805a9173d0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc9000e6bb000 RDX: 0000000000023631 RSI: ffffffff8597a090 RDI: ffff8880a84e15c0 kobject: 'loop0' (00000000c60f6f64): kobject_uevent_env RBP: ffff88805a917460 R08: ffff88805a90e5c0 R09: ffff88805a7b0568 R10: ffffed100b4f60ac R11: ffff88805a7b0560 R12: 1ffff1100b522e7b R13: ffff8880a84e15c0 R14: ffff88805a917438 R15: dffffc0000000000 FS: 00007fd660e1f700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000bc6690 CR3: 0000000089a30000 CR4: 00000000001406f0 Call Trace: kobject: 'loop0' (00000000c60f6f64): fill_kobj_path: path = '/devices/virtual/block/loop0' cttimeout_default_fill_info net/netfilter/nfnetlink_cttimeout.c:424 [inline] cttimeout_default_get+0x69a/0xa80 net/netfilter/nfnetlink_cttimeout.c:471 kobject: 'lo' (00000000829e6c12): kobject_add_internal: parent: 'net', set: 'devices' nfnetlink_rcv_msg+0xd12/0xfe0 net/netfilter/nfnetlink.c:228 kobject: 'lo' (00000000829e6c12): kobject_uevent_env kobject: 'lo' (00000000829e6c12): fill_kobj_path: path = '/devices/virtual/net/lo' netlink_rcv_skb+0x180/0x460 net/netlink/af_netlink.c:2454 kobject: 'queues' (000000008e61be11): kobject_add_internal: parent: 'lo', set: '' kobject: 'loop1' (00000000548f031c): kobject_uevent_env kobject: 'loop1' (00000000548f031c): fill_kobj_path: path = '/devices/virtual/block/loop1' nfnetlink_rcv+0x1c0/0x460 net/netfilter/nfnetlink.c:560 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53c/0x720 net/netlink/af_netlink.c:1343 kobject: 'queues' (000000008e61be11): kobject_uevent_env netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:632 ___sys_sendmsg+0x806/0x930 net/socket.c:2115 kobject: 'queues' (000000008e61be11): kobject_uevent_env: filter function caused the event to drop! __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 kobject: 'loop1' (00000000548f031c): kobject_uevent_env kobject: 'loop1' (00000000548f031c): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'rx-0' (00000000f741240c): kobject_add_internal: parent: 'queues', set: 'queues' __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458c29 kobject: 'rx-0' (00000000f741240c): kobject_uevent_env 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:00007fd660e1ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 kobject: 'rx-0' (00000000f741240c): fill_kobj_path: path = '/devices/virtual/net/lo/queues/rx-0' R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd660e1f6d4 R13: 00000000004c6501 R14: 00000000004dae68 R15: 00000000ffffffff Modules linked in: ---[ end trace 563f556505c10880 ]--- kobject: 'loop0' (00000000c60f6f64): kobject_uevent_env RIP: 0010:gre_timeout_obj_to_nlattr+0x77/0x1a0 net/netfilter/nf_conntrack_proto_gre.c:322 kobject: 'tx-0' (00000000eaf37dac): kobject_add_internal: parent: 'queues', set: 'queues' Code: 97 85 c7 00 f1 f1 f1 f1 c7 40 04 04 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 b0 96 d3 fb 48 89 d8 48 c1 e8 03 <42> 0f b6 14 38 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 kobject: 'tx-0' (00000000eaf37dac): kobject_uevent_env kobject: 'loop0' (00000000c60f6f64): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'tx-0' (00000000eaf37dac): fill_kobj_path: path = '/devices/virtual/net/lo/queues/tx-0' kobject: 'loop2' (00000000c59fc954): kobject_uevent_env kobject: 'loop2' (00000000c59fc954): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'tunl0' (00000000b45599ad): kobject_add_internal: parent: 'net', set: 'devices' RSP: 0018:ffff88805a9173d0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc9000e6bb000 kobject: 'tunl0' (00000000b45599ad): kobject_uevent_env RDX: 0000000000023631 RSI: ffffffff8597a090 RDI: ffff8880a84e15c0 kobject: 'tunl0' (00000000b45599ad): fill_kobj_path: path = '/devices/virtual/net/tunl0' RBP: ffff88805a917460 R08: ffff88805a90e5c0 R09: ffff88805a7b0568 kobject: 'queues' (00000000f2fb9e71): kobject_add_internal: parent: 'tunl0', set: '' R10: ffffed100b4f60ac R11: ffff88805a7b0560 R12: 1ffff1100b522e7b kobject: 'queues' (00000000f2fb9e71): kobject_uevent_env R13: ffff8880a84e15c0 R14: ffff88805a917438 R15: dffffc0000000000 kobject: 'queues' (00000000f2fb9e71): kobject_uevent_env: filter function caused the event to drop! FS: 00007fd660e1f700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 kobject: 'rx-0' (00000000c7bb9834): kobject_add_internal: parent: 'queues', set: 'queues' CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'rx-0' (00000000c7bb9834): kobject_uevent_env CR2: 0000001b2c329000 CR3: 0000000089a30000 CR4: 00000000001406e0 kobject: 'rx-0' (00000000c7bb9834): fill_kobj_path: path = '/devices/virtual/net/tunl0/queues/rx-0'