Bug 1221537 (CVE-2021-47122)

Summary:	VUL-0: CVE-2021-47122: kernel: net: caif: fix memory leak in caif_device_notify()
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Security Team bot <security-team>
Status:	RESOLVED INVALID	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	carlos.lopez, mhocko, osalvador
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/397856/
Whiteboard:	CVSSv3.1:SUSE:CVE-2021-47122:4.7:(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 2024-03-18 07:28:49 UTC

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

net: caif: fix memory leak in caif_device_notify

In case of caif_enroll_dev() fail, allocated
link_support won't be assigned to the corresponding
structure. So simply free allocated pointer in case
of error

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47122
https://www.cve.org/CVERecord?id=CVE-2021-47122
https://git.kernel.org/stable/c/3be863c11cab725add9fef4237ed4e232c3fc3bb
https://git.kernel.org/stable/c/4bca2034b41c15b62d47a19158bb76235fd4455d
https://git.kernel.org/stable/c/6a0e317f61094d377335547e015dd2ff12caf893
https://git.kernel.org/stable/c/9348c1f10932f13b299cbc8b1bd5f780751fae49
https://git.kernel.org/stable/c/af2806345a37313f01b1c9f15e046745b8ee2daa
https://git.kernel.org/stable/c/b042e2b2039565eb8f0eb51c14fbe1ef463c8cd8
https://git.kernel.org/stable/c/b53558a950a89824938e9811eddfc8efcd94e1bb
https://git.kernel.org/stable/c/f52f4fd67264c70cd0b4ba326962ebe12d9cba94
https://bugzilla.redhat.com/show_bug.cgi?id=2269845

Comment 4 Michal Hocko 2024-07-15 11:26:15 UTC

Same type of issue as bug 1221535

Comment 6 Carlos López 2024-07-16 13:01:22 UTC

Done, closing.