Bug 1225564 (CVE-2023-52812)

Summary:	VUL-0: CVE-2023-52812: kernel: drm/amd: check num of link levels when update pcie param
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Patrik Jakobsson <patrik.jakobsson>
Status:	NEW ---	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	andrea.mattiazzo, jlee
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/407177/
Whiteboard:	CVSSv3.1:SUSE:CVE-2023-52812:5.3:(AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description SMASH SMASH 2024-05-29 08:10:41 UTC

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

drm/amd: check num of link levels when update pcie param

In SR-IOV environment, the value of pcie_table->num_of_link_levels will
be 0, and num_of_levels - 1 will cause array index out of bounds

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-52812
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2023/CVE-2023-52812.mbox
https://git.kernel.org/stable/c/5b4574b663d0a1a0a62d5232429b7db9ae6d0670
https://git.kernel.org/stable/c/09f617219fe9ccd8d7b65dc3e879b5889f663b5a
https://git.kernel.org/stable/c/406e8845356d18bdf3d3a23b347faf67706472ec
https://www.cve.org/CVERecord?id=CVE-2023-52812
https://bugzilla.redhat.com/show_bug.cgi?id=2282782