Bug 2334448 (CVE-2024-56595)

Summary:	CVE-2024-56595 kernel: jfs: add a check to prevent array-index-out-of-bounds in dbAdjTree
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, vkumar
Target Milestone:	---	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 2024-12-27 15:02:42 UTC

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

jfs: add a check to prevent array-index-out-of-bounds in dbAdjTree

When the value of lp is 0 at the beginning of the for loop, it will
become negative in the next assignment and we should bail out.

Comment 1 Avinash Hanwate 2024-12-28 08:14:34 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024122701-CVE-2024-56595-0584@gregkh/T