Bug 2312085 (CVE-2024-46697)

Summary:	CVE-2024-46697 kernel: nfsd: ensure that nfsd4_fattr_args.context is zeroed out
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	CC:	dfreiber, drow, jburrell, toracat, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2312218
Bug Blocks:

Description OSIDB Bzimport 2024-09-13 06:30:33 UTC

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

nfsd: ensure that nfsd4_fattr_args.context is zeroed out

If nfsd4_encode_fattr4 ends up doing a "goto out" before we get to
checking for the security label, then args.context will be set to
uninitialized junk on the stack, which we'll then try to free.
Initialize it early.

Comment 1 Michal Findra 2024-09-13 14:58:53 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024091341-CVE-2024-46697-d166@gregkh/T

Comment 3 errata-xmlrpc 2024-12-19 00:43:10 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:11486 https://access.redhat.com/errata/RHSA-2024:11486