Answer in brief
CVE-2025-37899 records a Unknown severity vulnerability in ksmbd: fix use-after-free in session logoff. 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-2025-37899 records a Unknown severity vulnerability in ksmbd: fix use-after-free in session logoff. 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 <931dc8a3670f71c45c0b1379ea4e92dafbda1aca || >=0626e6641f6b467447c81dd7678a69c66f7746cf <70ad6455139e26e85f48f95d0e21f351c1909342 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <d5ec1d79509b3ee01de02c236f096bc050221b7f || >=0626e6641f6b467447c81dd7678a69c66f7746cf <02d16046cd11a5c037b28c12ffb818c56dd3ef43 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <2fc9feff45d92a92cd5f96487655d5be23fb7e2b | 931dc8a3670f71c45c0b1379ea4e92dafbda1aca, 70ad6455139e26e85f48f95d0e21f351c1909342, d5ec1d79509b3ee01de02c236f096bc050221b7f, 02d16046cd11a5c037b28c12ffb818c56dd3ef43, 2fc9feff45d92a92cd5f96487655d5be23fb7e2b |
| 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 use-after-free in session logoff The sess->user object can currently be in use by another thread, for example if another connection has sent a session setup request to bind to the session being free'd. The handler for that connection could be in the smb2_sess_setup function which makes use of sess->user.
Quoted source text, attributed separately from HOL analysis.
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 <931dc8a3670f71c45c0b1379ea4e92dafbda1aca || >=0626e6641f6b467447c81dd7678a69c66f7746cf <70ad6455139e26e85f48f95d0e21f351c1909342 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <d5ec1d79509b3ee01de02c236f096bc050221b7f || >=0626e6641f6b467447c81dd7678a69c66f7746cf <02d16046cd11a5c037b28c12ffb818c56dd3ef43 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <2fc9feff45d92a92cd5f96487655d5be23fb7e2b | 931dc8a3670f71c45c0b1379ea4e92dafbda1aca, 70ad6455139e26e85f48f95d0e21f351c1909342, d5ec1d79509b3ee01de02c236f096bc050221b7f, 02d16046cd11a5c037b28c12ffb818c56dd3ef43, 2fc9feff45d92a92cd5f96487655d5be23fb7e2b |
| 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 use-after-free in session logoff The sess->user object can currently be in use by another thread, for example if another connection has sent a session setup request to bind to the session being free'd. The handler for that connection could be in the smb2_sess_setup function which makes use of sess->user.
Quoted source text, attributed separately from HOL analysis.