Heap-based buffer overflow in Linux kernel - CVE-2025-71286
Published: May 7, 2026
Vulnerability identifier: #VU130632
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-71286
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a heap-based buffer overflow in ipc4-topology bytes controls when processing topology data. A local user can supply crafted topology data to cause a denial of service.
How to mitigate CVE-2025-71286
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/1237cd9ff198cb882402572f29569e5247190974
- https://git.kernel.org/stable/c/491956b45b5f4933632ea6d8a8bdfdf045ab81e1
- https://git.kernel.org/stable/c/59fe643f21b9d59bcbedb0dfbf988ee455c23736
- https://git.kernel.org/stable/c/a653820700b81c9e6f05ac23b7969ecec1a18e85
- https://git.kernel.org/stable/c/a704a1a4394b5877b9adc31b2c3165ad0b541896