NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-headers (opens in a new tab)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-RHEL10-KERNELHEADERS-13738163
- published29 Oct 2025
- disclosed28 Oct 2025
Introduced: 28 Oct 2025
CVE-2025-40031 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
tee: fix register_shm_helper()
In register_shm_helper(), fix incorrect error handling for a call to iov_iter_extract_pages(). A case is missing for when iov_iter_extract_pages() only got some pages and return a number larger than 0, but not the requested amount.
This fixes a possible NULL pointer dereference following a bad input from ioctl(TEE_IOC_SHM_REGISTER) where parts of the buffer isn't mapped.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2406749
- https://access.redhat.com/security/cve/CVE-2025-40031
- https://git.kernel.org/stable/c/6a7874ab814ce12003c46a92f7afc9b035c8e8e9
- https://git.kernel.org/stable/c/9338093db954918558677a468d32e77041c65167
- https://git.kernel.org/stable/c/d5cf5b37064b1699d946e8b7ab4ac7d7d101814c