Bug 2379256 (CVE-2025-38340)

Summary:	CVE-2025-38340 kernel: Linux kernel: Information disclosure or Denial of Service due to out-of-bounds read in cs_dsp firmware
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	rhel-process-autobot, watson-tool-maintainers
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in the Linux kernel. A local user could exploit an out-of-bounds memory read vulnerability in the `cs_dsp` firmware component. This occurs because the `cs_dsp_mock_bin_add_name_or_info()` function incorrectly calculates the length of a source string, leading to access beyond allocated memory. This memory corruption could result in information disclosure or a denial of service (DoS) on the system.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-07-10 09:03:18 UTC

In the Linux kernel, the following vulnerability has been resolved:

firmware: cs_dsp: Fix OOB memory read access in KUnit test

KASAN reported out of bounds access - cs_dsp_mock_bin_add_name_or_info(),
because the source string length was rounded up to the allocation size.

Comment 1 Avinash Hanwate 2025-07-10 10:51:20 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025071034-CVE-2025-38340-bd10@gregkh/T