Answer in brief
CVE-2021-47168 records a Critical severity (CVSS 9.8) vulnerability in NFS: fix an incorrect limit in filelayout_decode_layout(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2021-47168 records a Critical severity (CVSS 9.8) vulnerability in NFS: fix an incorrect limit in filelayout_decode_layout(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=16b374ca439fb406e46e071f75428f5b033056f8 <9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040 || >=16b374ca439fb406e46e071f75428f5b033056f8 <b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1 || >=16b374ca439fb406e46e071f75428f5b033056f8 <f299522eda1566cbfbae4b15c82970fc41b03714 || >=16b374ca439fb406e46e071f75428f5b033056f8 <945ebef997227ca8c20bad7f8a8358c8ee57a84a || >=16b374ca439fb406e46e071f75428f5b033056f8 <e411df81cd862ef3d5b878120b2a2fef0ca9cdb1 || >=16b374ca439fb406e46e071f75428f5b033056f8 <9b367fe770b1b80d7bf64ed0d177544a44405f6e || >=16b374ca439fb406e46e071f75428f5b033056f8 <d34fb628f6ef522f996205a9e578216bbee09e84 || >=16b374ca439fb406e46e071f75428f5b033056f8 <769b01ea68b6c49dc3cde6adf7e53927dacbd3a8 | 9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040, b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1, f299522eda1566cbfbae4b15c82970fc41b03714, 945ebef997227ca8c20bad7f8a8358c8ee57a84a, e411df81cd862ef3d5b878120b2a2fef0ca9cdb1, 9b367fe770b1b80d7bf64ed0d177544a44405f6e, d34fb628f6ef522f996205a9e578216bbee09e84, 769b01ea68b6c49dc3cde6adf7e53927dacbd3a8 |
| Linux/Linuxgeneric | 2.6.37 | Not reported |
Published upstream
Mar 25, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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.
Quoted source text, attributed separately from HOL analysis.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=16b374ca439fb406e46e071f75428f5b033056f8 <9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040 || >=16b374ca439fb406e46e071f75428f5b033056f8 <b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1 || >=16b374ca439fb406e46e071f75428f5b033056f8 <f299522eda1566cbfbae4b15c82970fc41b03714 || >=16b374ca439fb406e46e071f75428f5b033056f8 <945ebef997227ca8c20bad7f8a8358c8ee57a84a || >=16b374ca439fb406e46e071f75428f5b033056f8 <e411df81cd862ef3d5b878120b2a2fef0ca9cdb1 || >=16b374ca439fb406e46e071f75428f5b033056f8 <9b367fe770b1b80d7bf64ed0d177544a44405f6e || >=16b374ca439fb406e46e071f75428f5b033056f8 <d34fb628f6ef522f996205a9e578216bbee09e84 || >=16b374ca439fb406e46e071f75428f5b033056f8 <769b01ea68b6c49dc3cde6adf7e53927dacbd3a8 | 9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040, b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1, f299522eda1566cbfbae4b15c82970fc41b03714, 945ebef997227ca8c20bad7f8a8358c8ee57a84a, e411df81cd862ef3d5b878120b2a2fef0ca9cdb1, 9b367fe770b1b80d7bf64ed0d177544a44405f6e, d34fb628f6ef522f996205a9e578216bbee09e84, 769b01ea68b6c49dc3cde6adf7e53927dacbd3a8 |
| Linux/Linuxgeneric | 2.6.37 | Not reported |
Published upstream
Mar 25, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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.
Quoted source text, attributed separately from HOL analysis.