Bug 2516318 (CVE-2026-72039)

Summary:	CVE-2026-72039 kernel: bnx2x: fix potential memory leak in bnx2x_alloc_mem_bp()
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 Linux kernel's bnx2x driver. A potential memory leak can occur in the `bnx2x_alloc_mem_bp()` function. If an allocation within this function fails, a previously allocated memory structure is not correctly released, leading to a memory leak. Repeated occurrences of this issue could lead to system instability or a denial of service (DoS).	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 06:06:14 UTC

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

bnx2x: fix potential memory leak in bnx2x_alloc_mem_bp()

If the allocation of fp[i].tpa_info fails, the error path will not free
the struct bnx2x_fastpath allocated earlier, as it is not linked to the
bp structure yet. Fix that by linking it immediately after allocation.

Comment 1 Keith Grant 2026-08-17 17:29:33 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026081513-CVE-2026-72039-7faa@gregkh/T