From: Jakub Kicinski <kuba@kernel.org>
To: Jeongjun Park <aha310510@gmail.com>
Cc: syzbot+44623300f057a28baf1e@syzkaller.appspotmail.com,
davem@davemloft.net, edumazet@google.com, pabeni@redhat.com,
ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org,
john.fastabend@gmail.com, willemdebruijn.kernel@gmail.com,
jasowang@redhat.com, bigeasy@linutronix.de, bpf@vger.kernel.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
syzkaller-bugs@googlegroups.com
Subject: Re: [PATCH net] tun: Add missing bpf_net_ctx_clear() in do_xdp_generic()
Date: Fri, 26 Jul 2024 07:41:02 -0700 [thread overview]
Message-ID: <20240726074102.74b42a9b@kernel.org> (raw)
In-Reply-To: <20240725214049.2439-1-aha310510@gmail.com>
On Fri, 26 Jul 2024 06:40:49 +0900 Jeongjun Park wrote:
> There are cases where do_xdp_generic returns bpf_net_context without
> clearing it. This causes various memory corruptions, so the missing
> bpf_net_ctx_clear must be added.
>
> Reported-by: syzbot+44623300f057a28baf1e@syzkaller.appspotmail.com
> Fixes: fecef4cd42c6 ("tun: Assign missing bpf_net_context.")
> Signed-off-by: Jeongjun Park <aha310510@gmail.com>
Also likely:
Reported-by: syzbot+3c2b6d5d4bec3b904933@syzkaller.appspotmail.com
Reported-by: syzbot+707d98c8649695eaf329@syzkaller.appspotmail.com
Right?
next prev parent reply other threads:[~2024-07-26 14:41 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-19 3:59 [syzbot] [net?] [bpf?] general protection fault in __dev_flush syzbot
2024-07-22 2:59 ` [syzbot] [bpf?] [net?] " syzbot
2024-07-24 15:21 ` [PATCH net] tun: Remove nested call to bpf_net_ctx_set() in do_xdp_generic() Jeongjun Park
2024-07-25 2:43 ` Willem de Bruijn
2024-07-25 4:13 ` Jeongjun Park
2024-07-25 10:44 ` Paolo Abeni
2024-07-25 12:15 ` Jeongjun Park
2024-07-25 21:40 ` [PATCH net] tun: Add missing bpf_net_ctx_clear() " Jeongjun Park
2024-07-26 2:21 ` Jason Wang
2024-07-26 3:03 ` Willem de Bruijn
2024-07-26 14:41 ` Jakub Kicinski [this message]
2024-07-27 2:16 ` Jeongjun Park
2024-07-27 2:28 ` Jeongjun Park
2024-07-29 10:08 ` patchwork-bot+netdevbpf
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