Information Exposure Affecting torvalds/linux package, versions [4.8,5.10.273)[5.11,5.15.224)[5.16,6.1.191)[6.2,6.6.160)[6.7,6.12.114)[6.13,6.18.52)[6.19,7.2.5)
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-20823590
- published11 Oct 2026
- disclosed16 Sept 2026
- creditUnknown
Introduced: 16 Sep 2026
CVE-2026-89987 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 5.10.273, 5.15.224, 6.1.191, 6.6.160, 6.12.114, 6.18.52, 7.2.5 or higher.
Overview
Affected versions of this package are vulnerable to Information Exposure in the zap_huge_pmd_folio process. An attacker can cause silent data loss by triggering unmapping of a PMD-mapped shared memory segment in tmpfs with swap enabled, leading to written data being discarded without being written to swap. This is only exploitable if shmem Transparent Huge Pages (THP) are enabled, the mapping is MAP_SHARED on tmpfs, and swap is active.
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