From: Kuniyuki Iwashima <kuniyu@amazon.com>
To: <samsun1006219@gmail.com>
Cc: <davem@davemloft.net>, <dsahern@kernel.org>,
<edumazet@google.com>, <kuba@kernel.org>,
<linux-kernel@vger.kernel.org>, <netdev@vger.kernel.org>,
<pabeni@redhat.com>, <syzkaller-bugs@googlegroups.com>,
<xrivendell7@gmail.com>, <kuniyu@amazon.com>
Subject: Re: [Linux kernel bug] UBSAN: shift-out-of-bounds in dctcp_update_alpha
Date: Fri, 17 May 2024 18:27:30 +0900 [thread overview]
Message-ID: <20240517092730.34061-1-kuniyu@amazon.com> (raw)
In-Reply-To: <CAEkJfYNJM=cw-8x7_Vmj1J6uYVCWMbbvD=EFmDPVBGpTsqOxEA@mail.gmail.com>
From: Sam Sun <samsun1006219@gmail.com>
Date: Fri, 17 May 2024 13:03:18 +0800
> Dear developers and maintainers,
>
> We encountered a shift-out-of-bounds bug while using our modified
> syzkaller. It was tested against the latest upstream kernel (6.9). The
> kernel was compiled by clang 14.0.0, and kernel config and C repro are
> attached to this email. Kernel crash log is listed below.
> ------------[ cut here ]------------
> UBSAN: shift-out-of-bounds in net/ipv4/tcp_dctcp.c:143:12
Just for the record, I posted a patch:
https://lore.kernel.org/netdev/20240517091626.32772-1-kuniyu@amazon.com/
prev parent reply other threads:[~2024-05-17 9:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-17 5:03 Sam Sun
2024-05-17 9:27 ` Kuniyuki Iwashima [this message]
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