Bug 1225586 (CVE-2023-52863)

Summary:	VUL-0: CVE-2023-52863: kernel: hwmon: (axi-fan-control) Fix possible NULL pointer dereference
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Jean Delvare <jdelvare>
Status:	NEW ---	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	gianluca.gabrielli, jlee
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/407204/
Whiteboard:	CVSSv3.1:SUSE:CVE-2023-52863:5.5:(AV:L/AC:L/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 2024-05-29 10:37:07 UTC

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

hwmon: (axi-fan-control) Fix possible NULL pointer dereference

axi_fan_control_irq_handler(), dependent on the private
axi_fan_control_data structure, might be called before the hwmon
device is registered. That will cause an "Unable to handle kernel
NULL pointer dereference" error.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-52863
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2023/CVE-2023-52863.mbox
https://git.kernel.org/stable/c/7d870088db4863c514a7f8751cd593751983029a
https://git.kernel.org/stable/c/b3e7eb23a6e97642ff3190431c06475d9ca1e062
https://git.kernel.org/stable/c/33de53a2706066d526173dc743faf43d92c62105
https://git.kernel.org/stable/c/f62b8969847850ba7596cb145cc47c65ea57dae0
https://git.kernel.org/stable/c/c49f14cc1bb12c625a1c572e8a95b6adefd4d8eb
https://git.kernel.org/stable/c/2a5b3370a1d9750eca325292e291c8c7cb8cf2e0
https://www.cve.org/CVERecord?id=CVE-2023-52863
https://bugzilla.redhat.com/show_bug.cgi?id=2282629