Bug 2482064 (CVE-2026-46005)

Summary:	CVE-2026-46005 kernel: xfs: fix a resource leak in xfs_alloc_buftarg()
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
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
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Doc Text:	A flaw was found in the Linux kernel's xfs filesystem. This resource leak occurs in the `xfs_alloc_buftarg()` function's error path, where a DAX (Direct Access) device reference is not properly dropped. An attacker could potentially exploit this flaw to cause resource exhaustion, leading to a Denial of Service (DoS) condition 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 2026-05-27 15:09:34 UTC

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

xfs: fix a resource leak in xfs_alloc_buftarg()

In the error path, call fs_put_dax() to drop the DAX
device reference.

Comment 1 Keith Grant 2026-05-27 21:11:13 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026052743-CVE-2026-46005-525f@gregkh/T