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    <title>Most recent entries from all</title>
    <link>https://db.gcve.eu</link>
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    <lastBuildDate>Mon, 28 Sep 2026 16:23:06 +0000</lastBuildDate>
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      <title>CVE-2024-36974 — net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP</title>
      <link>https://db.gcve.eu/vuln/cve-2024-36974</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux, Siemens RUGGEDCOM RST2428P, Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family, Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP&lt;/p&gt;
&lt;p&gt;If one TCA_TAPRIO_ATTR_PRIOMAP attribute has been provided,
taprio_parse_mqprio_opt() must validate it, or userspace
can inject arbitrary data to the kernel, the second time
taprio_change() is called.&lt;/p&gt;
&lt;p&gt;First call (with valid attributes) sets dev-&amp;gt;num_tc
to a non zero value.&lt;/p&gt;
&lt;p&gt;Second call (with arbitrary mqprio attributes)
returns early from taprio_parse_mqprio_opt()
and bad things can happen.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux, Siemens RUGGEDCOM RST2428P, Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family, Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP&lt;/p&gt;
&lt;p&gt;If one TCA_TAPRIO_ATTR_PRIOMAP attribute has been provided,
taprio_parse_mqprio_opt() must validate it, or userspace
can inject arbitrary data to the kernel, the second time
taprio_change() is called.&lt;/p&gt;
&lt;p&gt;First call (with valid attributes) sets dev-&amp;gt;num_tc
to a non zero value.&lt;/p&gt;
&lt;p&gt;Second call (with arbitrary mqprio attributes)
returns early from taprio_parse_mqprio_opt()
and bad things can happen.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://db.gcve.eu/vuln/cve-2024-36974</guid>
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