CVE-2024-27431cpumap: Zero-initialise xdp_rxq_info struct before running XDP program
Updated under an hour ago ()
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It affects Linux and 3 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-908
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | 9216477449f33cdbc9c9a99d49f500b7fbb81702 builds before 5f4e51abfbe6eb444fa91906a5cd083044278297; from 9216477449f33cdbc9c9a99d49f500b7fbb81702 before f0363af9619c77730764f10360e36c6445c12f7b; 9216477449f33cdbc9c9a99d49f500b7fbb81702 builds before 3420b3ff1ff489c177ea1cb7bd9fbbc4e9a0be95; from 9216477449f33cdbc9c9a99d49f500b7fbb81702 before f562e4c4aab00986dde3093c4be919c3f2b85a4a; from 9216477449f33cdbc9c9a99d49f500b7fbb81702 before eaa7cb836659ced2d9f814ac32aa3ec193803ed6; 9216477449f33cdbc9c9a99d49f500b7fbb81702 builds before 2487007aa3b9fafbd2cb14068f49791ce1d7ede5 | CNA record |
linux linux_kernel linux:linux_kernel | 9216477449f3 | CISA ADP |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | before V1.1.1 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 5.9 before 5.10.213; from 5.11 before 5.15.152; from 5.16 before 6.1.82; from 6.2 before 6.6.22; from 6.7 before 6.7.10; 6.8; 6.8; 6.8; and 4 more ranges | NVD |
debian debian_linux debian:debian_linux | 10.0 | NVD |
References
- https://git.kernel.org/stable/c/5f4e51abfbe6eb444fa91906a5cd083044278297patch
- https://git.kernel.org/stable/c/f0363af9619c77730764f10360e36c6445c12f7bpatch
- https://git.kernel.org/stable/c/3420b3ff1ff489c177ea1cb7bd9fbbc4e9a0be95patch
- https://git.kernel.org/stable/c/f562e4c4aab00986dde3093c4be919c3f2b85a4apatch
- https://git.kernel.org/stable/c/eaa7cb836659ced2d9f814ac32aa3ec193803ed6patch
- https://git.kernel.org/stable/c/2487007aa3b9fafbd2cb14068f49791ce1d7ede5patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlthird-party-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.