CVE-2024-27431

תיאור (מקור, אנגלית)

In the Linux kernel, the following vulnerability has been resolved: cpumap: Zero-initialise xdp_rxq_info struct before running XDP program When running an XDP program that is attached to a cpumap entry, we don't initialise the xdp_rxq_info data structure being used in the xdp_buff that backs the XDP program invocation. Tobias noticed that this leads to random values being returned as the xdp_md->rx_queue_index value for XDP programs running in a cpumap. This means we're basically returning the contents of the uninitialised memory, which is bad. Fix this by zero-initialising the rxq data structure before running the XDP program.

מדדים

CVSS 3.1

5.5 (MEDIUM) מקור הציון: NVD CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-6/8/2026

CWE

CWE-908

מוצרים מושפעים

linux: linux kernel; debian: debian linux

קישורים

• https://git.kernel.org/stable/c/2487007aa3b9fafbd2cb14068f49791ce1d7ede5 Patch
• https://git.kernel.org/stable/c/3420b3ff1ff489c177ea1cb7bd9fbbc4e9a0be95 Patch
• https://git.kernel.org/stable/c/5f4e51abfbe6eb444fa91906a5cd083044278297 Patch
• https://git.kernel.org/stable/c/eaa7cb836659ced2d9f814ac32aa3ec193803ed6 Patch
• https://git.kernel.org/stable/c/f0363af9619c77730764f10360e36c6445c12f7b Patch
• https://git.kernel.org/stable/c/f562e4c4aab00986dde3093c4be919c3f2b85a4a Patch
• https://git.kernel.org/stable/c/2487007aa3b9fafbd2cb14068f49791ce1d7ede5 Patch
• https://git.kernel.org/stable/c/3420b3ff1ff489c177ea1cb7bd9fbbc4e9a0be95 Patch
• https://git.kernel.org/stable/c/5f4e51abfbe6eb444fa91906a5cd083044278297 Patch
• https://git.kernel.org/stable/c/eaa7cb836659ced2d9f814ac32aa3ec193803ed6 Patch