Bug 1225087 (CVE-2021-47331)

Summary:	VUL-0: CVE-2021-47331: kernel: usb: common: usb-conn-gpio: fix NULL pointer dereference of charger
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Security Team bot <security-team>
Status:	RESOLVED FIXED	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	andrea.mattiazzo, mhocko
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/406967/
Whiteboard:	CVSSv3.1:SUSE:CVE-2021-47331:5.5:(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 2024-05-23 08:48:14 UTC

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

usb: common: usb-conn-gpio: fix NULL pointer dereference of charger

When power on system with OTG cable, IDDIG's interrupt arises before
the charger registration, it will cause a NULL pointer dereference,
fix the issue by registering the power supply before requesting
IDDIG/VBUS irq.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47331
https://www.cve.org/CVERecord?id=CVE-2021-47331
https://git.kernel.org/stable/c/1a133a0996d6b4c83509d570ed4edcba34c44f25
https://git.kernel.org/stable/c/436906fd248e018403bcda61a9311d9af02912f1
https://git.kernel.org/stable/c/880287910b1892ed2cb38977893b947382a09d21
https://git.kernel.org/stable/c/8e8d910e9a3a7fba86140aff4924c30955ab228b
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2021/CVE-2021-47331.mbox
https://bugzilla.redhat.com/show_bug.cgi?id=2282429

Comment 2 Oliver Neukum 2024-06-06 08:48:25 UTC

The driver was added in v5.10 and not backported to SLE12. There's nothing to do for us.

Comment 3 Andrea Mattiazzo 2024-06-06 08:53:52 UTC

All done, closing.