Missing Release of Memory after Effective Lifetime Affecting torvalds/linux package, versions [4.1,5.10.271)[5.11,5.15.222)[5.16,6.1.189)[6.2,6.6.158)[6.7,6.12.111)[6.13,6.18.53)[6.19,7.2.7)
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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Start learning- Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-20824315
- published11 Oct 2026
- disclosed25 Sept 2026
- creditUnknown
Introduced: 25 Sep 2026
CVE-2026-97959 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7 or higher.
Overview
Affected versions of this package are vulnerable to Missing Release of Memory after Effective Lifetime in the route4_change process. An attacker can cause a memory leak by repeatedly moving filters between buckets, leading to stale empty buckets that are not freed. This is only exploitable if the kernel is configured with CONFIG_NET_CLS_ROUTE4=y, CONFIG_NET_SCH_INGRESS=y, and CONFIG_NET_CLS_ACT=y.
Note: The Linux kernel project assigns a CVE to every bug fix it ships, whether or not the bug has been shown to be exploitable. This advisory was generated from that process and has not been individually assessed for exploitability. See the kernel's CVE process documentation: https://github.com/torvalds/linux/blob/master/Documentation/process/cve.rst