Use After Free Affecting torvalds/linux package, versions [5.15,6.1.191)[6.2,6.6.91)[6.7,6.12.29)[6.13,6.14.7)
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-20699306
- published10 Oct 2026
- disclosed20 May 2025
- creditUnknown
Introduced: 20 May 2025
CVE-2025-37952 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 6.1.191, 6.6.91, 6.12.29, 6.14.7 or higher.
Overview
Affected versions of this package are vulnerable to Use After Free via the __close_file_table_ids process. An attacker can achieve arbitrary kernel memory read and write, control kernel memory allocation, and potentially hijack control flow by exploiting a race condition between file destruction and reference acquisition, allowing use of freed memory. This can result in system crashes or full compromise of the affected system by sending crafted SMB2 requests over the network.
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