Answer in brief
CVE-2026-46100 records a High severity (CVSS 7.8) vulnerability in fs: afs: revert mmap_prepare() change. 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 7.8. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=9d5403b1036cdcd4be0f9f5568612c0e60e73d79 <f51f85c044809fbd39ac8ae07ac99bc43ce32bd5 || >=9d5403b1036cdcd4be0f9f5568612c0e60e73d79 <48c7a0eaeea41da17d1d84d2d7a4c40be122b246 || >=9d5403b1036cdcd4be0f9f5568612c0e60e73d79 <fbfc6578eaca12daa0c09df1e9ba7f2c657b49da | f51f85c044809fbd39ac8ae07ac99bc43ce32bd5, 48c7a0eaeea41da17d1d84d2d7a4c40be122b246, fbfc6578eaca12daa0c09df1e9ba7f2c657b49da |
| Linux/Linuxgeneric | 6.17 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: fs: afs: revert mmap_prepare() change Partially reverts commit 9d5403b1036c ("fs: convert most other generic_file_*mmap() users to .mmap_prepare()"). This is because the .mmap invocation establishes a refcount, but .mmap_prepare is called at a point where a merge or an allocation failure might happen after the call, which would leak the refcount increment. Functionality is being added to permit the use of .mmap_prepare in this case, but in the interim, we need to fix this.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-46100 records a High severity (CVSS 7.8) vulnerability in fs: afs: revert mmap_prepare() change. 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 7.8. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=9d5403b1036cdcd4be0f9f5568612c0e60e73d79 <f51f85c044809fbd39ac8ae07ac99bc43ce32bd5 || >=9d5403b1036cdcd4be0f9f5568612c0e60e73d79 <48c7a0eaeea41da17d1d84d2d7a4c40be122b246 || >=9d5403b1036cdcd4be0f9f5568612c0e60e73d79 <fbfc6578eaca12daa0c09df1e9ba7f2c657b49da | f51f85c044809fbd39ac8ae07ac99bc43ce32bd5, 48c7a0eaeea41da17d1d84d2d7a4c40be122b246, fbfc6578eaca12daa0c09df1e9ba7f2c657b49da |
| Linux/Linuxgeneric | 6.17 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: fs: afs: revert mmap_prepare() change Partially reverts commit 9d5403b1036c ("fs: convert most other generic_file_*mmap() users to .mmap_prepare()"). This is because the .mmap invocation establishes a refcount, but .mmap_prepare is called at a point where a merge or an allocation failure might happen after the call, which would leak the refcount increment. Functionality is being added to permit the use of .mmap_prepare in this case, but in the interim, we need to fix this.
Quoted source text, attributed separately from HOL analysis.