Use After Free Affecting torvalds/linux package, versions [4.20,6.1.189)[6.2,6.6.158)[6.7,6.12.112)[6.13,6.18.54)[6.19,7.2.8)
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-UNMANAGED-TORVALDSLINUX-20824616
- published11 Oct 2026
- disclosed6 Oct 2026
- creditUnknown
Introduced: 6 Oct 2026
NewCVE-2026-98283 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 6.1.189, 6.6.158, 6.12.112, 6.18.54, 7.2.8 or higher.
Overview
Affected versions of this package are vulnerable to Use After Free in the kvmhv_emulate_tlbie_all_lpid process. An attacker can cause memory corruption and potentially execute arbitrary code or crash the host system by racing the removal and use of nested guest structures through concurrent operations from a nested guest. This is only exploitable if KVM nested virtualization is enabled and the attacker has code execution privileges within a nested guest.
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