protocol 88fb is buggy, dev hsr_slave_1 kasan: GPF could be caused by NULL-ptr deref or user memory access DebugCtl = 0x0000000000000000 DebugExceptions = 0x0000000000000000 Interruptibility = 00000000 ActivityState = 00000000 *** Host State *** general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 2543 Comm: syz-executor.0 Not tainted 4.19.34 #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:generic_timeout_obj_to_nlattr+0x77/0x120 net/netfilter/nf_conntrack_proto_generic.c:103 Code: b5 41 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 50 32 d5 fb 4c 89 e0 48 c1 e8 03 <42> 0f b6 14 38 4c 89 e0 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 74 RSP: 0018:ffff888056e5f3d8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 1ffff1100adcbe7b RCX: ffffc90005e7f000 RDX: 0000000000036bb7 RSI: ffffffff859604f0 RDI: ffff888089d17a80 RBP: ffff888056e5f460 R08: ffff88805f62a680 R09: ffff888050a62628 R10: ffffed100a14c4c4 R11: ffff888050a62620 R12: 0000000000000000 R13: ffff888056e5f438 R14: ffff888089d17a80 R15: dffffc0000000000 FS: 00007fc383844700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe60bd3090 CR3: 0000000089301000 CR4: 00000000001426f0 Call Trace: cttimeout_default_fill_info net/netfilter/nfnetlink_cttimeout.c:424 [inline] cttimeout_default_get+0x69a/0xa80 net/netfilter/nfnetlink_cttimeout.c:471 nfnetlink_rcv_msg+0xd12/0xfe0 net/netfilter/nfnetlink.c:228 netlink_rcv_skb+0x180/0x460 net/netlink/af_netlink.c:2454 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 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 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __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 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:00007fc383843c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc3838446d4 R13: 00000000004c6501 R14: 00000000004dae68 R15: 00000000ffffffff Modules linked in: RIP = 0xffffffff811c8cac RSP = 0xffff88805f3df8c0 CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040 FSBase=00007f04642d3700 GSBase=ffff8880ae800000 TRBase=fffffe0000034000 GDTBase=fffffe0000032000 IDTBase=fffffe0000000000 CR0=0000000080050033 CR3=000000008c710000 CR4=00000000001426f0 Sysenter RSP=fffffe0000033200 CS:RIP=0010:ffffffff870013a0 EFER = 0x0000000000000d01 PAT = 0x0407050600070106 kobject: 'loop1' (00000000688fb216): kobject_uevent_env *** Control State *** PinBased=0000003f CPUBased=b5a06dfa SecondaryExec=000000c3 ---[ end trace aa679039c78a55e5 ]--- RIP: 0010:generic_timeout_obj_to_nlattr+0x77/0x120 net/netfilter/nf_conntrack_proto_generic.c:103 EntryControls=0000d1ff ExitControls=002fefff kobject: 'loop1' (00000000688fb216): fill_kobj_path: path = '/devices/virtual/block/loop1' Code: b5 41 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 50 32 d5 fb 4c 89 e0 48 c1 e8 03 <42> 0f b6 14 38 4c 89 e0 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 74 ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000 kobject: 'loop3' (000000002818de33): kobject_uevent_env RSP: 0018:ffff888056e5f3d8 EFLAGS: 00010246 kobject: 'loop3' (000000002818de33): fill_kobj_path: path = '/devices/virtual/block/loop3' VMEntry: intr_info=8000030e errcode=00000000 ilen=00000000 RAX: 0000000000000000 RBX: 1ffff1100adcbe7b RCX: ffffc90005e7f000 RDX: 0000000000036bb7 RSI: ffffffff859604f0 RDI: ffff888089d17a80 kobject: 'kvm' (000000002fb0f118): kobject_uevent_env RBP: ffff888056e5f460 R08: ffff88805f62a680 R09: ffff888050a62628 VMExit: intr_info=00000000 errcode=00000000 ilen=00000000 reason=80000021 qualification=0000000000000000 kobject: 'loop2' (00000000ac2f9452): kobject_uevent_env kobject: 'kvm' (000000002fb0f118): fill_kobj_path: path = '/devices/virtual/misc/kvm' R10: ffffed100a14c4c4 R11: ffff888050a62620 R12: 0000000000000000 IDTVectoring: info=00000000 errcode=00000000 R13: ffff888056e5f438 R14: ffff888089d17a80 R15: dffffc0000000000 kobject: 'loop2' (00000000ac2f9452): fill_kobj_path: path = '/devices/virtual/block/loop2' TSC Offset = 0xfffffcaa91605948 FS: 00007fc383844700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 TPR Threshold = 0x00 CR2: 00007f33db093db8 CR3: 0000000089301000 CR4: 00000000001426e0 EPT pointer = 0x000000009284801e