Bug 2123310 (CVE-2022-3078)

Summary:	CVE-2022-3078 kernel: NULL pointer dereference in drivers/media/test-drivers/vidtv/vidtv_s302m.c
Product:	[Other] Security Response	Reporter:	Alex <allarkin>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, adscvr, airlied, alciregi, bhu, brdeoliv, bskeggs, carnil, chwhite, crwood, ddepaula, debarbos, dhoward, dvlasenk, fhrbata, hdegoede, hkrzesin, hpa, jarod, jarodwilson, jburrell, jfaracco, jferlan, jforbes, jglisse, jlelli, joe.lawrence, jonathan, josef, jshortt, jstancek, jwboyer, jwyatt, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, lleshchi, lzampier, masami256, mchehab, nmurray, ptalbert, qzhao, rvrbovsk, scweaver, steved, tyberry, vkumar, walters, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	Linux kernel 5.18-rc1	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the Linux kernel. There is a lack of check after calling vzalloc() and a lack of free after allocation in drivers/media/test-drivers/vidtv/vidtv_s302m.c.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-09-01 11:21:33 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2123312
Bug Blocks:	2116450

Description Alex 2022-09-01 11:11:59 UTC

An issue was discovered in the Linux kernel through 5.16-rc6. There is a lack of check after calling vzalloc() and lack of free after
allocation in drivers/media/test-drivers/vidtv/vidtv_s302m.c.

Reference:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.19-rc2&id=e6a21a14106d9718aa4f8e115b1e474888eeba44

Comment 1 Alex 2022-09-01 11:12:33 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2123312]

Comment 3 Salvatore Bonaccorso 2022-09-02 04:59:10 UTC

Is the fixed version information correct? The fixing commit seems to be in 5.18-rc1 (and was backported to 5.17.2, 5.16.19, 5.15.33 and 5.10.110).

Comment 4 Alex 2022-09-04 11:28:06 UTC

Thank you, updated to the Linux kernel 5.18-rc1.

Comment 5 Justin M. Forbes 2022-09-20 14:10:39 UTC

These drivers were not enabled for Fedora, but for users building their own kernels, it was fixed in the 5.16.19 stable updates source tree.