Bug 1221574 (CVE-2021-47116)

Summary:	VUL-0: CVE-2021-47116: kernel: ext4: fix memory leak in ext4_mb_init_backend on error path.
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Kernel Bugs <kernel-bugs>
Status:	RESOLVED INVALID	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P5 - None	CC:	rfrohl
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/397850/
Whiteboard:
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description SMASH SMASH 2024-03-18 10:23:09 UTC

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

ext4: fix memory leak in ext4_mb_init_backend on error path.

Fix a memory leak discovered by syzbot when a file system is corrupted
with an illegally large s_log_groups_per_flex.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47116
https://www.cve.org/CVERecord?id=CVE-2021-47116
https://git.kernel.org/stable/c/04fb2baa0b147f51db065a1b13a11954abe592d0
https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49
https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5
https://bugzilla.redhat.com/show_bug.cgi?id=2269861

Comment 1 Robert Frohl 2024-03-18 10:31:42 UTC

does not affect our kernels, closing