Bug 1224969 (CVE-2021-47306) - VUL-0: CVE-2021-47306: kernel: net: fddi: fix UAF in fza_probe
Summary: VUL-0: CVE-2021-47306: kernel: net: fddi: fix UAF in fza_probe
Status: NEW
Alias: CVE-2021-47306
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/406940/
Whiteboard: CVSSv3.1:SUSE:CVE-2021-47306:5.5:(AV:...
Keywords:
Depends on:
Blocks:
 
Reported: 2024-05-22 12:35 UTC by SMASH SMASH
Modified: 2024-05-24 17:50 UTC (History)
2 users (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 2024-05-22 12:35:08 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: fddi: fix UAF in fza_probe

fp is netdev private data and it cannot be
used after free_netdev() call. Using fp after free_netdev()
can cause UAF bug. Fix it by moving free_netdev() after error message.

TURBOchannel adapter")

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47306
https://www.cve.org/CVERecord?id=CVE-2021-47306
https://git.kernel.org/stable/c/04b06716838bfc26742dbed3ae1d3697fe5317ee
https://git.kernel.org/stable/c/bdfbb51f7a437ae8ea91317a5c133ec13adf3c47
https://git.kernel.org/stable/c/deb7178eb940e2c5caca1b1db084a69b2e59b4c9
https://git.kernel.org/stable/c/f33605908a9b6063525e9f68e62d739948c5fccf
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2021/CVE-2021-47306.mbox