Bug 1220634 (CVE-2021-47021)

Summary:	VUL-0: CVE-2021-47021: kernel: mt76: mt7915: memory leak in mt7915_unregister_device()
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Kernel Bugs <kernel-bugs>
Status:	RESOLVED FIXED	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P5 - None	CC:	carlos.lopez
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/395468/
Whiteboard:	CVSSv3.1:SUSE:CVE-2021-47021:4.1:(AV:L/AC:H/PR:H/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 2024-02-29 09:42:57 UTC

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

mt76: mt7915: fix memleak when mt7915_unregister_device()

mt7915_tx_token_put() should get call before mt76_free_pending_txwi().

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47021
https://www.cve.org/CVERecord?id=CVE-2021-47021
https://git.kernel.org/stable/c/81483309ce861a9fa7835322787f68a443fea364
https://git.kernel.org/stable/c/d754c80ae82a662e692a82faad71b8c218cb7f52
https://git.kernel.org/stable/c/e9d32af478cfc3744a45245c0b126738af4b3ac4

Comment 1 Carlos López 2024-02-29 09:43:11 UTC

Already fixed in affected branches (cve/linux-5.14, SLE15-SP6, stable and master). Closing.