Improper Update of Reference Count The advisory has been revoked - it doesn't affect any version of package kernel (opens in a new tab)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-RHEL6-KERNEL-12725021
- published16 Sept 2025
- disclosed15 Sept 2025
Introduced: 15 Sep 2025
CVE-2022-50300 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:6.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix extent map use-after-free when handling missing device in read_one_chunk
Store the error code before freeing the extent_map. Though it's reference counted structure, in that function it's the first and last allocation so this would lead to a potential use-after-free.
The error can happen eg. when chunk is stored on a missing device and the degraded mount option is missing.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=216721
References
- https://access.redhat.com/security/cve/CVE-2022-50300
- https://git.kernel.org/stable/c/169a4cf46882974d4db6d85eb623ec898e51bbc0
- https://git.kernel.org/stable/c/1742e1c90c3da344f3bb9b1f1309b3f47482756a
- https://git.kernel.org/stable/c/b8e7ed42bc3ca0d0e4191ee394d34962d3624c22
- https://git.kernel.org/stable/c/fce3713197ebba239e1c7e02174ed216ea1ee014