Bug 2559575 (CVE-2026-98882)

Summary:	CVE-2026-98882 kernel: media: chips-media: wave5: Add range checks for dec_output_info
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:	akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, rhel-process-autobot, sghai, sidsharm, suppawar, vlaad, watson-tool-maintainers
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in the Linux kernel's Chips&Media Wave5 video processing driver. Missing bounds validation in the video decoder output handling allows the driver to write data outside allocated memory buffers. A local user could exploit this vulnerability to cause a Denial of Service (DoS) through a kernel crash or potentially corrupt system memory.	Story Points:	---
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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 2026-10-23 12:06:07 UTC

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

media: chips-media: wave5: Add range checks for dec_output_info

If the driver's dec_output_info contains invalid data the driver can
write in invalid memory. Add a range check for that.

This fixes this smatch error:
drivers/media/platform/chips-media/wave5/wave5-vpuapi.c:588 wave5_vpu_dec_get_output_info() error: buffer overflow 'inst->frame_buf' 64 <= 127

Comment 1 Mauro Matteo Cascella 2026-10-26 11:37:58 UTC

Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98882.mbox