Linux Kernel up to 6.13.11/6.14.2 irq_desc Local Privilege Escalation

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.13.11/6.14.2 and classified as problematic. This impacts the function irq_desc. Executing a manipulation can lead to an unknown weakness. This vulnerability appears as CVE-2025-23155. The attack requires local access. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.13.11/6.14.2. It has been declared as problematic. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: Fix accessing freed irq affinity_hint In stmmac_request_irq_multi_msi(), a pointer to the stack variable cpu_mask is passed to irq_set_affinity_hint(). This value is stored in irq_desc->affinity_hint, but once stmmac_request_irq_multi_msi() returns, the pointer becomes dangling. The affinity_hint is exposed via procfs with S_IRUGO permissions, allowing any unprivileged process to read it. Accessing this stale pointer can lead to: - a kernel oops or panic if the referenced memory has been released and unmapped, or - leakage of kernel data into userspace if the memory is re-used for other purposes. All platforms that use stmmac with PCI MSI (Intel, Loongson, etc) are affected.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2025-23155 since 01/11/2025. The exploitation appears to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 240657 (Ubuntu 25.04 : Linux kernel vulnerabilities (USN-7594-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.13.12, 6.14.3 or 6.15-rc1 eliminates this vulnerability. Applying the patch e148266e104fce396ad624079a6812ac3a9982ef/9e51a6a44e2c4de780a26e8fe110d708e806a8cd/c60d101a226f18e9a8f01bb4c6ca2b47dfcb15ef is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (240657), EUVD (EUVD-2025-13082) and CERT Bund (WID-SEC-2025-0922). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Dell Avamar
  • Open Source Linux Kernel
  • IBM DataPower Gateway
  • Dell NetWorker
  • Dell Secure Connect Gateway

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Local Privilege Escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 240657
Nessus Name: Ubuntu 25.04 : Linux kernel vulnerabilities (USN-7594-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.13.12/6.14.3/6.15-rc1
Patch: e148266e104fce396ad624079a6812ac3a9982ef/9e51a6a44e2c4de780a26e8fe110d708e806a8cd/c60d101a226f18e9a8f01bb4c6ca2b47dfcb15ef

Timelineinfo

01/11/2025 🔍
05/01/2025 +109 days 🔍
05/01/2025 +0 days 🔍
03/15/2026 +318 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-23155 (🔍)
GCVE (CVE): GCVE-0-2025-23155
GCVE (VulDB): GCVE-100-306898
EUVD: 🔍
CERT Bund: WID-SEC-2025-0922 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 05/01/2025 15:52
Updated: 03/15/2026 17:48
Changes: 05/01/2025 15:52 (56), 06/27/2025 08:46 (2), 07/06/2025 12:06 (1), 07/06/2025 12:30 (1), 07/27/2025 23:57 (7), 11/07/2025 04:56 (12), 01/31/2026 20:58 (1), 03/15/2026 17:48 (1)
Complete: 🔍
Cache ID: 216::103

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