Answer in brief
CVE-2025-21967 records a Unknown severity vulnerability in ksmbd: fix use-after-free in ksmbd_free_work_struct. 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 <fb776765bfc21d5e4ed03bb3d4406c2b86ff1ac3 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <62746ae3f5414244a96293e3b017be637b641280 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <eb51f6f59d19b92f6fe84d3873f958495ab32f0a || >=0626e6641f6b467447c81dd7678a69c66f7746cf <bb39ed47065455604729404729d9116868638d31 | fb776765bfc21d5e4ed03bb3d4406c2b86ff1ac3, 62746ae3f5414244a96293e3b017be637b641280, eb51f6f59d19b92f6fe84d3873f958495ab32f0a, bb39ed47065455604729404729d9116868638d31 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
Apr 1, 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 use-after-free in ksmbd_free_work_struct ->interim_entry of ksmbd_work could be deleted after oplock is freed. We don't need to manage it with linked list. The interim request could be immediately sent whenever a oplock break wait is needed.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2025-21967 records a Unknown severity vulnerability in ksmbd: fix use-after-free in ksmbd_free_work_struct. 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 <fb776765bfc21d5e4ed03bb3d4406c2b86ff1ac3 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <62746ae3f5414244a96293e3b017be637b641280 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <eb51f6f59d19b92f6fe84d3873f958495ab32f0a || >=0626e6641f6b467447c81dd7678a69c66f7746cf <bb39ed47065455604729404729d9116868638d31 | fb776765bfc21d5e4ed03bb3d4406c2b86ff1ac3, 62746ae3f5414244a96293e3b017be637b641280, eb51f6f59d19b92f6fe84d3873f958495ab32f0a, bb39ed47065455604729404729d9116868638d31 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
Apr 1, 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 use-after-free in ksmbd_free_work_struct ->interim_entry of ksmbd_work could be deleted after oplock is freed. We don't need to manage it with linked list. The interim request could be immediately sent whenever a oplock break wait is needed.
Quoted source text, attributed separately from HOL analysis.