by Kastro CVE-2021-47168
Linux Linux — NFS: fix an incorrect limit in filelayout_decode_layout()
Description · from the CVE record
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.
Affected
ProductAffectedFixed inSource
Linux16b374ca439fb406e46e071f75428f5b033056f8 – < 9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe0409d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040CNA
Linux16b374ca439fb406e46e071f75428f5b033056f8 – < b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1CNA
Linux16b374ca439fb406e46e071f75428f5b033056f8 – < f299522eda1566cbfbae4b15c82970fc41b03714f299522eda1566cbfbae4b15c82970fc41b03714CNA
Linux16b374ca439fb406e46e071f75428f5b033056f8 – < 945ebef997227ca8c20bad7f8a8358c8ee57a84a945ebef997227ca8c20bad7f8a8358c8ee57a84aCNA
Linux16b374ca439fb406e46e071f75428f5b033056f8 – < e411df81cd862ef3d5b878120b2a2fef0ca9cdb1e411df81cd862ef3d5b878120b2a2fef0ca9cdb1CNA
Linux16b374ca439fb406e46e071f75428f5b033056f8 – < 9b367fe770b1b80d7bf64ed0d177544a44405f6e9b367fe770b1b80d7bf64ed0d177544a44405f6eCNA
Linux16b374ca439fb406e46e071f75428f5b033056f8 – < d34fb628f6ef522f996205a9e578216bbee09e84d34fb628f6ef522f996205a9e578216bbee09e84CNA
Linux16b374ca439fb406e46e071f75428f5b033056f8 – < 769b01ea68b6c49dc3cde6adf7e53927dacbd3a8769b01ea68b6c49dc3cde6adf7e53927dacbd3a8CNA
Linux2.6.37–CNA
Scores by source
Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial