Hello,
syzbot hit the following crash on net-next commit
f74290fdb363665538743d14c4f00aeacdb68d87 (Sat Feb 24 05:04:20 2018 +0000)
Merge git://
git.kernel.org/pub/scm/linux/kernel/git/davem/net
Unfortunately, I don't have any reproducer for this crash yet.
Raw console output is attached.
compiler: gcc (GCC) 7.1.1 20170620
.config is attached.
CC: [
core...@netfilter.org da...@davemloft.net f...@strlen.de
kad...@blackhole.kfki.hu kuz...@ms2.inr.ac.ru linux-...@vger.kernel.org
net...@vger.kernel.org netfilt...@vger.kernel.org pa...@netfilter.org
yosh...@linux-ipv6.org]
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Reported-by:
syzbot+a39285...@syzkaller.appspotmail.com
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If you forward the report, please keep this part and the footer.
arp_tables: arptables: counters copy to user failed while replacing table
Dead loop on virtual device tunl0, fix it urgently!
Dead loop on virtual device tunl0, fix it urgently!
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in:
0000000061020920
CPU: 0 PID: 4231 Comm: syz-executor3 Not tainted 4.16.0-rc2+ #241
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x194/0x24d lib/dump_stack.c:53
panic+0x1e4/0x41c kernel/panic.c:183
__stack_chk_fail+0x22/0x30 kernel/panic.c:643
do_ipt_get_ctl+0x9bf/0xac0 net/ipv4/netfilter/ip_tables.c:1743
nf_sockopt net/netfilter/nf_sockopt.c:104 [inline]
nf_getsockopt+0x6a/0xc0 net/netfilter/nf_sockopt.c:122
ip_getsockopt+0x152/0x200 net/ipv4/ip_sockglue.c:1572
tcp_getsockopt+0x82/0xd0 net/ipv4/tcp.c:3332
sock_common_getsockopt+0x95/0xd0 net/core/sock.c:2938
SYSC_getsockopt net/socket.c:1881 [inline]
SyS_getsockopt+0x178/0x340 net/socket.c:1863
do_syscall_64+0x280/0x940 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4568ba
RSP: 002b:0000000000a3e3b8 EFLAGS: 00000202 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 0000000000a3e3e0 RCX: 00000000004568ba
RDX: 0000000000000041 RSI: 0000000000000000 RDI: 0000000000000013
RBP: 00000000006ff8a0 R08: 0000000000a3e3dc R09: 0000000000004000
R10: 0000000000a3e4e0 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000013 R14: 0000000000000000 R15: 00000000006fdda0
Dumping ftrace buffer:
(ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..
---
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