Bug 1219615 (CVE-2024-22386)

Summary:	VUL-0: CVE-2024-22386: kernel: null pointer dereference due to race in drm/exynos in exynos_drm_crtc_atomic_disable() function
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Karasulli <vasant.karasulli>
Status:	RESOLVED FIXED	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	andrea.mattiazzo, meissner, vasant.karasulli
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/393019/
Whiteboard:	CVSSv3.1:SUSE:CVE-2024-22386:4.7:(AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description SMASH SMASH 2024-02-06 10:20:11 UTC

A race condition was found in the Linux kernel's drm/exynos device driver in exynos_drm_crtc_atomic_disable() function. This can result in a null pointer dereference issue, possibly leading to a kernel panic or denial of service issue.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-22386
https://www.cve.org/CVERecord?id=CVE-2024-22386
https://bugzilla.openanolis.cn/show_bug.cgi?id=8147

Comment 1 Andrea Mattiazzo 2024-02-06 10:33:25 UTC

Advisory is not public yet, but probably refer to this upstream commit:
https://github.com/torvalds/linux/commit/2e63972a2de14482d0eae1a03a73e379f1c3f44c

Based on this commit the codestream affected are:
- cve/linux-5.14
- cve/linux-4.12
- cve/linux-5.3

Comment 2 Marcus Meissner 2024-02-08 17:05:14 UTC

SP4, SP5, SP6: 
config/arm64/default:# CONFIG_DRM_EXYNOS is not set
(armv7l has it, but we do not ship arm32bit product.)

I would declare us as unaffected.

Comment 3 Andrea Mattiazzo 2024-02-09 08:26:14 UTC

Ok, thanks Markus, closing it as resolved.