Improper Locking Affecting torvalds/linux package, versions [4.12,5.10.273)[5.11,5.15.224)[5.16,6.1.191)[6.2,6.6.161)[6.7,6.12.115)[6.13,6.18.59)[6.19,7.2.13)
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-22182575
- published4 Nov 2026
- disclosed3 Nov 2026
- creditUnknown
Introduced: 3 Nov 2026
NewCVE-2026-99256 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 5.10.273, 5.15.224, 6.1.191, 6.6.161, 6.12.115, 6.18.59, 7.2.13 or higher.
Overview
Affected versions of this package are vulnerable to Improper Locking in the background_work_lock process. An attacker can cause kernel warnings or potential denial of service by triggering inconsistent locking and unlocking operations across different processes.
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