Improper Input Validation Affecting torvalds/linux package, versions [5.4,5.10.265)[5.11,5.15.216)[5.16,6.1.183)[6.2,6.6.151)[6.7,6.12.103)[6.13,6.18.44)[6.19,7.1.8)
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-20791722
- published11 Oct 2026
- disclosed13 Aug 2026
- creditUnknown
Introduced: 13 Aug 2026
CVE-2026-68452 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 5.10.265, 5.15.216, 6.1.183, 6.6.151, 6.12.103, 6.18.44, 7.1.8 or higher.
Overview
Affected versions of this package are vulnerable to Improper Input Validation via the cca_cipher2protkey function. An attacker can achieve arbitrary kernel memory disclosure and corruption by supplying a crafted key token with an excessive length field, leading to out-of-bounds heap writes in kernel memory through a malicious ioctl call to the /dev/pkey device.
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