Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') Affecting torvalds/linux package, versions [4.1,6.1.191)[6.2,6.6.160)[6.7,6.12.114)[6.13,6.19.12)
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-20788843
- published10 Oct 2026
- disclosed1 May 2026
- creditUnknown
Introduced: 1 May 2026
CVE-2026-43042 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 6.1.191, 6.6.160, 6.12.114, 6.19.12 or higher.
Overview
Affected versions of this package are vulnerable to Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') due to a race condition in the mpls process when concurrent resizing of platform_labels and access to the route table occurs. An attacker can cause out-of-bounds memory access and potentially disclose sensitive kernel memory or trigger a denial of service by racing writes to the sysctl interface and issuing concurrent route dumps or packet processing.
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