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Tue, 08 Jun 2021 03:16:17 -0700 (PDT) Received: from localhost.localdomain ([94.103.224.40]) by smtp.gmail.com with ESMTPSA id h19sm95405lfj.256.2021.06.08.03.16.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Jun 2021 03:16:17 -0700 (PDT) Date: Tue, 8 Jun 2021 13:16:14 +0300 From: Pavel Skripkin To: syzbot Cc: andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, coreteam@netfilter.org, daniel@iogearbox.net, davem@davemloft.net, dsahern@kernel.org, fw@strlen.de, john.fastabend@gmail.com, jonathan.lemon@gmail.com, kadlec@netfilter.org, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, matthieu.baerts@tessares.net, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pablo@netfilter.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, unixbhaskar@gmail.com, yhs@fb.com, yoshfuji@linux-ipv6.org, zhengyongjun3@huawei.com Subject: Re: [syzbot] general protection fault in kcm_sendmsg Message-ID: <20210608131614.15ca4340@gmail.com> In-Reply-To: <000000000000b3f96105c42ef146@google.com> References: <000000000000b3f96105c42ef146@google.com> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; x86_64-suse-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Mon, 07 Jun 2021 08:46:26 -0700 syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 1a802423 virtio-net: fix for skb_over_panic inside > big mode git tree: bpf > console output: > https://syzkaller.appspot.com/x/log.txt?x=159b08afd00000 kernel > config: https://syzkaller.appspot.com/x/.config?x=770708ea7cfd4916 > dashboard link: > https://syzkaller.appspot.com/bug?extid=65badd5e74ec62cb67dc syz > repro: > https://syzkaller.appspot.com/x/repro.syz?x=104624afd00000 C > reproducer: https://syzkaller.appspot.com/x/repro.c?x=16e36197d00000 > > The issue was bisected to: > > commit f9006acc8dfe59e25aa75729728ac57a8d84fc32 > Author: Florian Westphal > Date: Wed Apr 21 07:51:08 2021 +0000 > > netfilter: arp_tables: pass table pointer via nf_hook_ops > > bisection log: > https://syzkaller.appspot.com/x/bisect.txt?x=11739740300000 final > oops: https://syzkaller.appspot.com/x/report.txt?x=13739740300000 > console output: > https://syzkaller.appspot.com/x/log.txt?x=15739740300000 > #syz fix: revert "net: kcm: fix memory leak in kcm_sendmsg" With regards, Pavel Skripkin