Bug 1220780 (CVE-2021-47057) - VUL-0: CVE-2021-47057: kernel: crypto: sun8i-ss: memory leak of object `d` when dma_iv fails to map
Summary: VUL-0: CVE-2021-47057: kernel: crypto: sun8i-ss: memory leak of object `d` wh...
Status: RESOLVED FIXED
Alias: CVE-2021-47057
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P5 - None : Normal
Target Milestone: ---
Assignee: Kernel Bugs
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/395868/
Whiteboard: CVSSv3.1:SUSE:CVE-2021-47057:4.4:(AV:...
Keywords:
Depends on:
Blocks:
 
Reported: 2024-03-01 13:03 UTC by SMASH SMASH
Modified: 2024-03-01 13:07 UTC (History)
1 user (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description SMASH SMASH 2024-03-01 13:03:46 UTC 
In the Linux kernel, the following vulnerability has been resolved:

crypto: sun8i-ss - Fix memory leak of object d when dma_iv fails to map

In the case where the dma_iv mapping fails, the return error path leaks
the memory allocated to object d.  Fix this by adding a new error return
label and jumping to this to ensure d is free'd before the return.

Addresses-Coverity: ("Resource leak")

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47057
https://www.cve.org/CVERecord?id=CVE-2021-47057
https://git.kernel.org/stable/c/617ec35ed51f731a593ae7274228ef2cfc9cb781
https://git.kernel.org/stable/c/6516cb852d704ff8d615de1f93cd443a99736c3d
https://git.kernel.org/stable/c/98b5ef3e97b16eaeeedb936f8bda3594ff84a70e
https://git.kernel.org/stable/c/e1f2d739849c3239df1ea3f97d40bade4b808410
https://bugzilla.redhat.com/show_bug.cgi?id=2267181
Comment 1 Carlos López 2024-03-01 13:07:04 UTC 
Already fixed in cve/linux-5.14 and newer. Older branches not affected. Closing.