Missing Release of Resource after Effective Lifetime The advisory has been revoked - it doesn't affect any version of package libperf (opens in a new tab)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-RHEL10-LIBPERF-18058638
- published21 Jul 2026
- disclosed19 Jul 2026
Introduced: 19 Jul 2026
CVE-2026-63839 (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 libperf package and not the libperf package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
platform/x86: lenovo-wmi-helpers: Fix memory leak in lwmi_dev_evaluate_int()
lwmi_dev_evaluate_int() leaks output.pointer when retval == NULL (found by sashiko.dev [1]).
Fix it by moving ret_obj = output.pointer' outside of the if (retval)'
block so that it is always freed by the __free cleanup callback.
No functional change intended.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2502288
- https://access.redhat.com/security/cve/CVE-2026-63839
- https://git.kernel.org/stable/c/0c3887a134f191723b53e2a47e501b534c8723ee
- https://git.kernel.org/stable/c/40a984dd0602e238ad893b167751620e751d1199
- https://git.kernel.org/stable/c/ce493f9261cd3f4bffe2f72481d8c3ee01c559a3