Bug 2516697 (CVE-2026-72050)

Summary:	CVE-2026-72050 kernel: octeontx2-af: Free BPID bitmap on setup failure
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	rhel-process-autobot, 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 `octeontx2-af` component of the Linux kernel. During the setup of BPID (Back Pressure ID) mapping arrays, if memory allocation fails, the BPID bitmap is not properly freed. This can lead to a memory leak, potentially impacting system stability or performance.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-08-15 06:26:23 UTC

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

octeontx2-af: Free BPID bitmap on setup failure

nix_setup_bpids() allocates bp->bpids with rvu_alloc_bitmap(), which uses
a plain kcalloc(). If any of the following devm_kcalloc() allocations for
the BPID mapping arrays fails, the function returns without freeing the
bitmap. Free the BPID bitmap before returning from those error paths.

Comment 1 Keith Grant 2026-08-17 18:09:50 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026081515-CVE-2026-72050-6815@gregkh/T