Incorrect Calculation of Buffer Size The advisory has been revoked - it doesn't affect any version of package kernel-modules-extra-matched (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CENTOS10-KERNELMODULESEXTRAMATCHED-14087842
- published21 Nov 2025
- disclosed16 Sept 2025
Introduced: 16 Sep 2025
CVE-2025-39810 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-modules-extra-matched package and not the kernel-modules-extra-matched package as distributed by Centos.
In the Linux kernel, the following vulnerability has been resolved:
bnxt_en: Fix memory corruption when FW resources change during ifdown
bnxt_set_dflt_rings() assumes that it is always called before any TC has been created. So it doesn't take bp->num_tc into account and assumes that it is always 0 or 1.
In the FW resource or capability change scenario, the FW will return flags in bnxt_hwrm_if_change() that will cause the driver to reinitialize and call bnxt_cancel_reservations(). This will lead to bnxt_init_dflt_ring_mode() calling bnxt_set_dflt_rings() and bp->num_tc may be greater than 1. This will cause bp->tx_ring[] to be sized too small and cause memory corruption in bnxt_alloc_cp_rings().
Fix it by properly scaling the TX rings by bp->num_tc in the code paths mentioned above. Add 2 helper functions to determine bp->tx_nr_rings and bp->tx_nr_rings_per_tc.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2395803
- https://access.redhat.com/security/cve/CVE-2025-39810
- https://git.kernel.org/stable/c/2747328ba2714f1a7454208dbbc1dc0631990b4a
- https://git.kernel.org/stable/c/9ab6a9950f152e094395d2e3967f889857daa185
- https://git.kernel.org/stable/c/d00e98977ef519280b075d783653e2c492fffbb6
- https://git.kernel.org/stable/c/dc797a4bbbcac6d19e6e2508e4df685755cd94a5
- https://git.kernel.org/stable/c/c0082a8947cf1a543013346d10c1857f0c57db83