PT-2025-39126 · Linux+5 · Linux Kernel+5
Published
2025-08-30
·
Updated
2026-05-07
·
CVE-2025-39869
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A memory allocation issue was identified within the EDMA driver in the Linux kernel. The
queue priority map was allocated with an insufficient memory size during the edma setup from hw() function, specifically using sizeof(s8) instead of sizeof(*queue priority map). This resulted in out-of-bounds memory writes when accessing queue priority map[i][0] and queue priority map[i][1], leading to kernel crashes, such as "Oops - undefined instruction", on ARM platforms like BeagleBoard-X15. The issue was triggered by kernel hardening features on Clang.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Beagleboard-X15
Debian
Linuxmint
Linux Kernel
Suse
Ubuntu