CVE-2021-47168

NFS: fix an incorrect limit in filelayout_decode_layout()

Description

In the Linux kernel, the following vulnerability has been resolved: NFS: fix an incorrect limit in filelayout_decode_layout() The "sizeof(struct nfs_fh)" is two bytes too large and could lead to memory corruption. It should be NFS_MAXFHSIZE because that's the size of the ->data[] buffer. I reversed the size of the arguments to put the variable on the left.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040 patch
https://git.kernel.org/stable/c/b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1 patch
https://git.kernel.org/stable/c/f299522eda1566cbfbae4b15c82970fc41b03714 patch
https://git.kernel.org/stable/c/945ebef997227ca8c20bad7f8a8358c8ee57a84a patch
https://git.kernel.org/stable/c/e411df81cd862ef3d5b878120b2a2fef0ca9cdb1 patch
https://git.kernel.org/stable/c/9b367fe770b1b80d7bf64ed0d177544a44405f6e patch
https://git.kernel.org/stable/c/d34fb628f6ef522f996205a9e578216bbee09e84 patch
https://git.kernel.org/stable/c/769b01ea68b6c49dc3cde6adf7e53927dacbd3a8 patch

Frequently Asked Questions

What is the severity of CVE-2021-47168?
CVE-2021-47168 has been scored as a medium severity vulnerability.
How to fix CVE-2021-47168?
To fix CVE-2021-47168, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-47168 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-47168 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-47168?
CVE-2021-47168 affects Linux Linux, Linux Linux.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.