syzbot


general protection fault in hash_ipportip6_uadt

Status: closed as dup on 2020/01/08 16:06
Subsystems: netfilter
[Documentation on labels]
Reported-by: syzbot+19df0457b3f8383e02bd@syzkaller.appspotmail.com
First crash: 1808d, last: 1807d
Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
general protection fault in hash_ipportnet4_uadt netfilter C done 13 1807d 1809d
Discussions (1)
Title Replies (including bot) Last reply
general protection fault in hash_ipportip6_uadt 1 (2) 2020/01/08 16:05

Sample crash report:
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: 10470 Comm: syz-executor176 Not tainted 5.5.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:hash_ipportip6_uadt+0x226/0xa00 net/netfilter/ipset/ip_set_hash_ipportip.c:285
Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 14 07 00 00 4c 89 ea 45 8b 76 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d9
RSP: 0018:ffffc90001d07170 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffc90001d07320 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff867d0153 RDI: ffff888098405030
RBP: ffffc90001d072b8 R08: 0000000000000000 R09: 0000000000000000
R10: ffffed1015d2703c R11: ffff8880ae9381e3 R12: ffff8880a8f38800
R13: 0000000000000000 R14: 0000000004000000 R15: 0000000000000002
FS:  00000000013d7880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000180 CR3: 00000000860d8000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ip_set_utest+0x55b/0x890 net/netfilter/ipset/ip_set_core.c:1867
 nfnetlink_rcv_msg+0xcf2/0xfb0 net/netfilter/nfnetlink.c:229
 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
 nfnetlink_rcv+0x1ba/0x460 net/netfilter/nfnetlink.c:563
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x58c/0x7d0 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:639 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:659
 ____sys_sendmsg+0x753/0x880 net/socket.c:2330
 ___sys_sendmsg+0x100/0x170 net/socket.c:2384
 __sys_sendmsg+0x105/0x1d0 net/socket.c:2417
 __do_sys_sendmsg net/socket.c:2426 [inline]
 __se_sys_sendmsg net/socket.c:2424 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2424
 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x441469
Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 9b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffe7a20dc98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441469
RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
RBP: 000000000001669d R08: 00000000004002c8 R09: 00000000004002c8
R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000402290
R13: 0000000000402320 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace c6feec8ba9897408 ]---
RIP: 0010:hash_ipportip6_uadt+0x226/0xa00 net/netfilter/ipset/ip_set_hash_ipportip.c:285
Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 14 07 00 00 4c 89 ea 45 8b 76 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d9
RSP: 0018:ffffc90001d07170 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffc90001d07320 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff867d0153 RDI: ffff888098405030
RBP: ffffc90001d072b8 R08: 0000000000000000 R09: 0000000000000000
R10: ffffed1015d2703c R11: ffff8880ae9381e3 R12: ffff8880a8f38800
R13: 0000000000000000 R14: 0000000004000000 R15: 0000000000000002
FS:  00000000013d7880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000180 CR3: 00000000860d8000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/01/09 23:59 upstream b07f636fca1c 4de4e9f0 .config console log report syz C ci-upstream-kasan-gce-selinux-root
2020/01/09 02:15 upstream b07f636fca1c ddc3e859 .config console log report syz C ci-upstream-kasan-gce-root
2020/01/08 15:30 upstream ae6088216ce4 ddc3e859 .config console log report syz C ci-upstream-kasan-gce
2020/01/08 22:47 upstream ae6088216ce4 ddc3e859 .config console log report syz C ci-upstream-kasan-gce-386
2020/01/08 16:59 net-old 47240ba0cd09 ddc3e859 .config console log report syz C ci-upstream-net-this-kasan-gce
2020/01/08 17:49 net-next-old 1ece2fbe9b42 ddc3e859 .config console log report syz C ci-upstream-net-kasan-gce
* Struck through repros no longer work on HEAD.