Bug 2388941 (CVE-2025-38550)

Summary:	CVE-2025-38550 kernel: ipv6: mcast: Delay put pmc->idev in mld_del_delrec()
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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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Description OSIDB Bzimport 2025-08-16 12:02:46 UTC

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

ipv6: mcast: Delay put pmc->idev in mld_del_delrec()

pmc->idev is still used in ip6_mc_clear_src(), so as mld_clear_delrec()
does, the reference should be put after ip6_mc_clear_src() return.

Comment 1 Alexander B 2025-08-18 09:12:05 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025081628-CVE-2025-38550-9bfd@gregkh/T

Comment 3 errata-xmlrpc 2025-09-15 08:01:44 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:15740 https://access.redhat.com/errata/RHSA-2025:15740

Comment 4 errata-xmlrpc 2025-09-15 10:21:37 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:15782 https://access.redhat.com/errata/RHSA-2025:15782

Comment 6 errata-xmlrpc 2025-10-14 08:27:06 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2025:17958 https://access.redhat.com/errata/RHSA-2025:17958

Comment 9 errata-xmlrpc 2025-10-20 00:07:43 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2025:18279 https://access.redhat.com/errata/RHSA-2025:18279

Comment 10 errata-xmlrpc 2025-10-20 00:19:21 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2025:18280 https://access.redhat.com/errata/RHSA-2025:18280