Use After Free Affecting torvalds/linux package, versions [2.6.12,6.1.191)[6.2,6.6.160)[6.7,6.12.114)[6.13,6.18.57)[6.19,7.2.4)
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-20821424
- published11 Oct 2026
- disclosed11 Sept 2026
- creditUnknown
Introduced: 11 Sep 2026
CVE-2026-89601 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 6.1.191, 6.6.160, 6.12.114, 6.18.57, 7.2.4 or higher.
Overview
Affected versions of this package are vulnerable to Use After Free in the ext2_setsize or ext2_xattr_set2 process. An attacker can cause unauthorized disclosure of information, modification of data, and denial of service by manipulating inode flags and performing file operations such as truncating files or modifying extended attributes on a sync-mounted ext2 filesystem. This can result in lost inode updates, leading to use-after-free conditions, exposure of sensitive data, filesystem corruption, and potential unavailability of files or the entire volume.
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