Bug 2414522 (CVE-2025-40141)

Summary:	CVE-2025-40141 kernel: Bluetooth: ISO: Fix possible UAF on iso_conn_free
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	Keywords:	Security
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Hardware:	All
OS:	Linux
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Doc Text:	A vulnerability was found in iso_sock_kill in net/bluetooth/iso.c in Bluetooth protocol stack in the Linux Kernel. In this flaw if the conn->sk is not set to NULL may lead to UAF on iso_conn_free.	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-11-12 11:05:23 UTC

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

Bluetooth: ISO: Fix possible UAF on iso_conn_free

This attempt to fix similar issue to sco_conn_free where if the
conn->sk is not set to NULL may lead to UAF on iso_conn_free.

Comment 1 Alexander B 2025-11-13 12:37:27 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025111256-CVE-2025-40141-072e@gregkh/T

Comment 4 errata-xmlrpc 2026-01-13 09:28:09 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2026:0489 https://access.redhat.com/errata/RHSA-2026:0489