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[204.195.96.226]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-13e72643a12sm2873241c88.5.2026.07.28.13.20.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Jul 2026 13:20:13 -0700 (PDT) Date: Tue, 28 Jul 2026 13:20:10 -0700 From: Stephen Hemminger To: John McAndrew Cc: netdev@vger.kernel.org Subject: Re: Vulnerability Report: iproute2-6.19.0 Stack Buffer Overflow in print_queuelen (CWE-120) Message-ID: <20260728132010.756efcaf@phoenix.local> In-Reply-To: References: Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Tue, 28 Jul 2026 16:03:16 -0400 John McAndrew wrote: > Dear iproute2 Maintainers, > > I have discovered a critical stack buffer overflow vulnerability in > iproute2 version 6.19.0 > in the print_queuelen() function (ip/ipaddress.c:173). Hardly a vulnerability. If attacker can control the kernel and feed bogus data to iproute you are already pawned.