Bug 2467069 (CVE-2026-43202)

Summary:	CVE-2026-43202 kernel: fbdev: vt8500lcdfb: fix missing dma_free_coherent()
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
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's `fbdev: vt8500lcdfb` module. This vulnerability, a memory leak, occurs because allocated memory is not properly freed when an error path is triggered. A local attacker could potentially exploit this to exhaust system resources, leading to a Denial of Service (DoS).	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 2026-05-06 13:02:36 UTC

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

fbdev: vt8500lcdfb: fix missing dma_free_coherent()

fbi->fb.screen_buffer is allocated with dma_alloc_coherent() but is not
freed if the error path is reached.

Comment 1 Keith Grant 2026-05-06 21:18:40 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050646-CVE-2026-43202-2ab9@gregkh/T