Medium 5.5Published Apr 24, 2026

CVE-2026-31646net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool()

Updated under an hour ago (Oct 27, 2026, 11:00 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool() page_pool_create() can return an ERR_PTR on failure. The return value is used unconditionally in the loop that follows, passing the error pointer through xdp_rxq_info_reg_mem_model() into page_pool_use_xdp_mem(), which dereferences it, causing a kernel oops. Add an IS_ERR check after page_pool_create() to return early on failure.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
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: Analyzed
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 11871aba19748b3387e83a2db6360aa7119e9a1a before e63265f188ea39dcf5f546770650027528f3bd0f; from 11871aba19748b3387e83a2db6360aa7119e9a1a before 305832c53551cfbe6e5b81ca7ee765e60f4fe8e9; from 11871aba19748b3387e83a2db6360aa7119e9a1a before b5dcb41ba891b55157006cac79825c78a32b409e; 11871aba19748b3387e83a2db6360aa7119e9a1a builds before 7caf90d9ab97951a58d1de85ab7e7d7cca7a4513; 11871aba19748b3387e83a2db6360aa7119e9a1a builds before 3fd0da4fd8851a7e62d009b7db6c4a05b092bc19	CNA record
linux linux_kernel linux:linux_kernel	from 6.2.1 before 6.6.135; from 6.7 before 6.12.82; from 6.13 before 6.18.23; from 6.19 before 6.19.13; 6.2; 7.0; 7.0; 7.0; and 4 more ranges	NVD

References

References

https://git.kernel.org/stable/c/e63265f188ea39dcf5f546770650027528f3bd0f	patch
https://git.kernel.org/stable/c/305832c53551cfbe6e5b81ca7ee765e60f4fe8e9	patch
https://git.kernel.org/stable/c/b5dcb41ba891b55157006cac79825c78a32b409e	patch
https://git.kernel.org/stable/c/7caf90d9ab97951a58d1de85ab7e7d7cca7a4513	patch
https://git.kernel.org/stable/c/3fd0da4fd8851a7e62d009b7db6c4a05b092bc19	patch

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.