Integer Overflow or Wraparound The advisory has been revoked - it doesn't affect any version of package kernel-64k-debug-modules-internal (opens in a new tab)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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-CENTOS9-KERNEL64KDEBUGMODULESINTERNAL-9609814
- published2 Apr 2025
- disclosed1 Apr 2025
Introduced: 1 Apr 2025
CVE-2025-21963 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-64k-debug-modules-internal package and not the kernel-64k-debug-modules-internal package as distributed by Centos.
In the Linux kernel, the following vulnerability has been resolved:
cifs: Fix integer overflow while processing acdirmax mount option
User-provided mount parameter acdirmax of type u32 is intended to have an upper limit, but before it is validated, the value is converted from seconds to jiffies which can lead to an integer overflow.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
References
- https://access.redhat.com/security/cve/CVE-2025-21963
- https://git.kernel.org/stable/c/0c26edf477e093cefc41637f5bccc102e1a77399
- https://git.kernel.org/stable/c/2809a79bc64964ce02e0c5f2d6bd39b9d09bdb3c
- https://git.kernel.org/stable/c/39d086bb3558da9640ef335f97453e01d32578a1
- https://git.kernel.org/stable/c/5b29891f91dfb8758baf1e2217bef4b16b2b165b
- https://git.kernel.org/stable/c/6124cbf73e3dea7591857dd63b8ccece28952afd
- https://git.kernel.org/stable/c/9e438d0410a4002d24f420f2c28897ba2dc0af64