From: syzbot <syzbot+987e85fbd9c71706c130@syzkaller.appspotmail.com>
To: 0x7f454c46@gmail.com, andrii@kernel.org, ast@kernel.org,
bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net,
dsahern@kernel.org, fw@strlen.de, johannes.berg@intel.com,
john.fastabend@gmail.com, kafai@fb.com, kpsingh@kernel.org,
kuba@kernel.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, songliubraving@fb.com,
syzkaller-bugs@googlegroups.com, yhs@fb.com
Subject: [syzbot] WARNING in netlink_sock_destruct
Date: Wed, 04 Aug 2021 17:31:17 -0700 [thread overview]
Message-ID: <000000000000877ae505c8c5092d@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: f3438b4c4e69 Merge tag '5.14-rc3-smb3-fixes' of git://git...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=127416d4300000
kernel config: https://syzkaller.appspot.com/x/.config?x=bfd78f4abd4edaa6
dashboard link: https://syzkaller.appspot.com/bug?extid=987e85fbd9c71706c130
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1
userspace arch: i386
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+987e85fbd9c71706c130@syzkaller.appspotmail.com
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1042 at net/netlink/af_netlink.c:410 netlink_sock_destruct+0x230/0x2b0 net/netlink/af_netlink.c:410
Modules linked in:
CPU: 0 PID: 1042 Comm: syz-executor.0 Not tainted 5.14.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:netlink_sock_destruct+0x230/0x2b0 net/netlink/af_netlink.c:410
Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 8a 00 00 00 48 83 bd d8 04 00 00 00 75 15 5b 5d 41 5c e9 a5 3a 22 fa e8 a0 3a 22 fa <0f> 0b e9 68 ff ff ff e8 94 3a 22 fa 0f 0b 5b 5d 41 5c e9 89 3a 22
RSP: 0018:ffffc90000007d90 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000407 RCX: 0000000000000100
RDX: ffff88808faa8000 RSI: ffffffff875360c0 RDI: 0000000000000003
RBP: ffff888000170000 R08: 0000000000000000 R09: ffff88800017020b
R10: ffffffff87536027 R11: 0000000000000000 R12: ffff888000170208
R13: ffff888000170030 R14: 0000000000000002 R15: ffff888000170688
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0063) knlGS:00000000f552db40
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000002e826000 CR3: 00000000938ef000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
__sk_destruct+0x4b/0x900 net/core/sock.c:1900
sk_destruct+0xbd/0xe0 net/core/sock.c:1944
__sk_free+0xef/0x3d0 net/core/sock.c:1955
sk_free+0x78/0xa0 net/core/sock.c:1966
deferred_put_nlk_sk+0x151/0x2f0 net/netlink/af_netlink.c:740
rcu_do_batch kernel/rcu/tree.c:2550 [inline]
rcu_core+0x7ab/0x1380 kernel/rcu/tree.c:2785
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
do_softirq.part.0+0xde/0x130 kernel/softirq.c:459
</IRQ>
do_softirq kernel/softirq.c:451 [inline]
__local_bh_enable_ip+0x102/0x120 kernel/softirq.c:383
local_bh_enable include/linux/bottom_half.h:32 [inline]
rcu_read_unlock_bh include/linux/rcupdate.h:757 [inline]
__dev_queue_xmit+0x1b04/0x3620 net/core/dev.c:4312
__netlink_deliver_tap_skb net/netlink/af_netlink.c:303 [inline]
__netlink_deliver_tap net/netlink/af_netlink.c:321 [inline]
netlink_deliver_tap+0x9b5/0xbc0 net/netlink/af_netlink.c:334
netlink_deliver_tap_kernel net/netlink/af_netlink.c:343 [inline]
netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
netlink_unicast+0x5e5/0x7d0 net/netlink/af_netlink.c:1340
netlink_sendmsg+0x86d/0xdb0 net/netlink/af_netlink.c:1929
sock_sendmsg_nosec net/socket.c:703 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:723
sock_no_sendpage+0xf3/0x130 net/core/sock.c:2959
kernel_sendpage.part.0+0x1a0/0x340 net/socket.c:3673
kernel_sendpage net/socket.c:3670 [inline]
sock_sendpage+0xe5/0x140 net/socket.c:1002
pipe_to_sendpage+0x2ad/0x380 fs/splice.c:364
splice_from_pipe_feed fs/splice.c:418 [inline]
__splice_from_pipe+0x43e/0x8a0 fs/splice.c:562
splice_from_pipe fs/splice.c:597 [inline]
generic_splice_sendpage+0xd4/0x140 fs/splice.c:746
do_splice_from fs/splice.c:767 [inline]
do_splice+0xb7e/0x1960 fs/splice.c:1079
__do_splice+0x134/0x250 fs/splice.c:1144
__do_sys_splice fs/splice.c:1350 [inline]
__se_sys_splice fs/splice.c:1332 [inline]
__ia32_sys_splice+0x195/0x250 fs/splice.c:1332
do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
__do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178
do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7f54549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f552d5fc EFLAGS: 00000296 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000005 RSI: 0000000000000000 RDI: 000000000004ffe0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
---
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:[~2021-08-05 0:31 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=000000000000877ae505c8c5092d@google.com \
--to=syzbot+987e85fbd9c71706c130@syzkaller.appspotmail.com \
--cc=0x7f454c46@gmail.com \
--cc=andrii@kernel.org \
--cc=ast@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=davem@davemloft.net \
--cc=dsahern@kernel.org \
--cc=fw@strlen.de \
--cc=johannes.berg@intel.com \
--cc=john.fastabend@gmail.com \
--cc=kafai@fb.com \
--cc=kpsingh@kernel.org \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=songliubraving@fb.com \
--cc=syzkaller-bugs@googlegroups.com \
--cc=yhs@fb.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.