Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/xe/configfs: Free ctx_restore_mid_bb in release ctx_restore_mid_bb memory is allocated in wa_bb_store(), but xe_config_device_release() only frees ctx_restore_post_bb. Free ctx_restore_mid_bb[0].cs as well to avoid leaking the allocation when the configfs device is removed. (cherry picked from commit a235e7d0098337c3f2d1e8f3610c719a589e115f)
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.18.1, < 6.18.17 |
References
- https://git.kernel.org/stable/c/3557359ea3df32430ea7c30f7a708ca9a91d7e0ePatch
- https://git.kernel.org/stable/c/7f971dfd48983074adc7bbcea3ee95ce7aad47cbPatch
- https://git.kernel.org/stable/c/e377182f0266f46f02d01838e6bde67b9dac0d66Patch
FAQ
What is CVE-2026-23421?
CVE-2026-23421 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: drm/xe/configfs: Free ctx_restore_mid_bb in release ctx_restore_mid_bb memory is allocated in wa_bb_store(), but xe_config_device_...
How severe is CVE-2026-23421?
CVE-2026-23421 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-23421?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.