From: syzbot <syzbot+58a66a56fa9d7f98d19b@syzkaller.appspotmail.com>
To: coreteam@netfilter.org, davem@davemloft.net, fw@strlen.de,
kadlec@netfilter.org, kuba@kernel.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
netfilter-devel@vger.kernel.org, pablo@netfilter.org,
syzkaller-bugs@googlegroups.com
Subject: [syzbot] general protection fault in nf_tables_dump_flowtable
Date: Thu, 15 Jul 2021 07:36:19 -0700 [thread overview]
Message-ID: <000000000000edbbe305c72a64d9@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: 222722bc6ebf virtio_net: check virtqueue_add_sgs() return ..
git tree: net
console output: https://syzkaller.appspot.com/x/log.txt?x=100acffc300000
kernel config: https://syzkaller.appspot.com/x/.config?x=51ea6c9df4ed04c4
dashboard link: https://syzkaller.appspot.com/bug?extid=58a66a56fa9d7f98d19b
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+58a66a56fa9d7f98d19b@syzkaller.appspotmail.com
general protection fault, probably for non-canonical address 0xfbd59c0000000054: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0xdead0000000002a0-0xdead0000000002a7]
CPU: 1 PID: 30836 Comm: syz-executor.2 Tainted: G W 5.13.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:nf_tables_dump_flowtable+0x453/0xbc0 net/netfilter/nf_tables_api.c:7617
Code: 5c 31 ff 89 de e8 ad 7a 16 fa 85 db 0f 85 67 ff ff ff e8 60 73 16 fa 48 8b 04 24 48 05 a0 01 00 00 48 89 44 24 10 48 c1 e8 03 <80> 3c 28 00 0f 85 bb 06 00 00 48 8b 04 24 48 8b 98 a0 01 00 00 48
RSP: 0018:ffffc9000592f1e0 EFLAGS: 00010a02
RAX: 1bd5a00000000054 RBX: 0000000000000000 RCX: ffffc9000dede000
RDX: 0000000000040000 RSI: ffffffff875f0eb0 RDI: 0000000000000003
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff8d6aef17
R10: ffffffff875f0ea3 R11: 000000000000003f R12: 0000000000000000
R13: ffff8880722d6544 R14: 0000000000000000 R15: ffff8880722d6548
FS: 00007fb776e0f700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000014a53ad CR3: 00000000715c8000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
netlink_dump+0x4b9/0xb70 net/netlink/af_netlink.c:2278
__netlink_dump_start+0x642/0x900 net/netlink/af_netlink.c:2383
netlink_dump_start include/linux/netlink.h:258 [inline]
nft_netlink_dump_start_rcu+0x9c/0x1b0 net/netfilter/nf_tables_api.c:859
nf_tables_getflowtable+0x582/0x6b0 net/netfilter/nf_tables_api.c:7707
nfnetlink_rcv_msg+0x6c6/0x13a0 net/netfilter/nfnetlink.c:285
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504
nfnetlink_rcv+0x1ac/0x420 net/netfilter/nfnetlink.c:654
netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1340
netlink_sendmsg+0x85b/0xda0 net/netlink/af_netlink.c:1929
sock_sendmsg_nosec net/socket.c:703 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:723
____sys_sendmsg+0x6e8/0x810 net/socket.c:2392
___sys_sendmsg+0xf3/0x170 net/socket.c:2446
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2475
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665d9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb776e0f188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000004
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffd108f5eef R14: 00007fb776e0f300 R15: 0000000000022000
Modules linked in:
---[ end trace 79a86b7be1217444 ]---
RIP: 0010:nf_tables_dump_flowtable+0x453/0xbc0 net/netfilter/nf_tables_api.c:7617
Code: 5c 31 ff 89 de e8 ad 7a 16 fa 85 db 0f 85 67 ff ff ff e8 60 73 16 fa 48 8b 04 24 48 05 a0 01 00 00 48 89 44 24 10 48 c1 e8 03 <80> 3c 28 00 0f 85 bb 06 00 00 48 8b 04 24 48 8b 98 a0 01 00 00 48
RSP: 0018:ffffc9000592f1e0 EFLAGS: 00010a02
RAX: 1bd5a00000000054 RBX: 0000000000000000 RCX: ffffc9000dede000
RDX: 0000000000040000 RSI: ffffffff875f0eb0 RDI: 0000000000000003
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff8d6aef17
R10: ffffffff875f0ea3 R11: 000000000000003f R12: 0000000000000000
R13: ffff8880722d6544 R14: 0000000000000000 R15: ffff8880722d6548
FS: 00007fb776e0f700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000030eb708 CR3: 00000000715c8000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
reply other threads:[~2021-07-15 14:36 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=000000000000edbbe305c72a64d9@google.com \
--to=syzbot+58a66a56fa9d7f98d19b@syzkaller.appspotmail.com \
--cc=coreteam@netfilter.org \
--cc=davem@davemloft.net \
--cc=fw@strlen.de \
--cc=kadlec@netfilter.org \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=netfilter-devel@vger.kernel.org \
--cc=pablo@netfilter.org \
--cc=syzkaller-bugs@googlegroups.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.