Answer in brief
CVE-2025-37952 records a Unknown severity vulnerability in ksmbd: Fix UAF in __close_file_table_ids. 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.
A CVSS score is not reported in the current record. 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 | >=0626e6641f6b467447c81dd7678a69c66f7746cf <fec1f9e9a650e8e7011330a085c77e7bf2a08ea9 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <9e9841e232b51171ddf3bc4ee517d5d28dc8cad6 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <16727e442568a46d9cca69fe2595896de86e120d || >=0626e6641f6b467447c81dd7678a69c66f7746cf <36991c1ccde2d5a521577c448ffe07fcccfe104d | fec1f9e9a650e8e7011330a085c77e7bf2a08ea9, 9e9841e232b51171ddf3bc4ee517d5d28dc8cad6, 16727e442568a46d9cca69fe2595896de86e120d, 36991c1ccde2d5a521577c448ffe07fcccfe104d |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
May 20, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix UAF in __close_file_table_ids A use-after-free is possible if one thread destroys the file via __ksmbd_close_fd while another thread holds a reference to it. The existing checks on fp->refcount are not sufficient to prevent this. The fix takes ft->lock around the section which removes the file from the file table. This prevents two threads acquiring the same file pointer via __close_file_table_ids, as well as the other functions which retrieve a file from the IDR and which already use this same lock.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2025-37952 records a Unknown severity vulnerability in ksmbd: Fix UAF in __close_file_table_ids. 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.
A CVSS score is not reported in the current record. 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 | >=0626e6641f6b467447c81dd7678a69c66f7746cf <fec1f9e9a650e8e7011330a085c77e7bf2a08ea9 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <9e9841e232b51171ddf3bc4ee517d5d28dc8cad6 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <16727e442568a46d9cca69fe2595896de86e120d || >=0626e6641f6b467447c81dd7678a69c66f7746cf <36991c1ccde2d5a521577c448ffe07fcccfe104d | fec1f9e9a650e8e7011330a085c77e7bf2a08ea9, 9e9841e232b51171ddf3bc4ee517d5d28dc8cad6, 16727e442568a46d9cca69fe2595896de86e120d, 36991c1ccde2d5a521577c448ffe07fcccfe104d |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
May 20, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix UAF in __close_file_table_ids A use-after-free is possible if one thread destroys the file via __ksmbd_close_fd while another thread holds a reference to it. The existing checks on fp->refcount are not sufficient to prevent this. The fix takes ft->lock around the section which removes the file from the file table. This prevents two threads acquiring the same file pointer via __close_file_table_ids, as well as the other functions which retrieve a file from the IDR and which already use this same lock.
Quoted source text, attributed separately from HOL analysis.