CVE-2026-31391

MEDIUM

In the Linux kernel, the following vulnerability has been resolved: crypto: atmel-sha204a - Fix OOM ->tfm_count leak If memory allocation fails, decrement ->tfm_count to avoid blocking future reads.

CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Published: 4/3/2026Modified: 7/24/2026

Related Intelligence (1)

CRITICALAi

Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP

<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-209-04.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version V3.1.6 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). Siemens is preparing fix versions and recommend

CVE-2021-41617CVE-2023-28531
CISA Advisories

References (9)

https://git.kernel.org/stable/c/1ab70c260cf16f931a728b2cb63fff5f38c814d8Patchhttps://git.kernel.org/stable/c/2bfc83cee05f8b9604502df27d94e8e2b4a3dbf1Patchhttps://git.kernel.org/stable/c/66ee9c1c3575b5d6afc340faca00fd40ed5b7ad9Patchhttps://git.kernel.org/stable/c/6f502049a96b368ea6646c49d9520d6f69a101faPatchhttps://git.kernel.org/stable/c/c2d0c45dbb9eb272385ae919b17eef5a5318d3f8Patchhttps://git.kernel.org/stable/c/d240b079a37e90af03fd7dfec94930eb6c83936ePatchhttps://git.kernel.org/stable/c/fd262dc6d758232511127372eba866b7600739baPatchhttps://cert-portal.siemens.com/productcert/html/ssa-019113.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html