Answer in brief
CVE-2025-22038 records a Unknown severity vulnerability in ksmbd: validate zero num_subauth before sub_auth is accessed. 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-2025-22038 records a Unknown severity vulnerability in ksmbd: validate zero num_subauth before sub_auth is accessed. 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 <3ac65de111c686c95316ade660f8ba7aea3cd3cc || >=0626e6641f6b467447c81dd7678a69c66f7746cf <0e36a3e080d6d8bd7a34e089345d043da4ac8283 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <56de7778a48560278c334077ace7b9ac4bfb2fd1 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <68c6c3142bfcdb049839d40a9a59ebe8ea865002 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <c8bfe1954a0b89e7b29b3a3e7f4c5e0ebd295e20 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <bf21e29d78cd2c2371023953d9c82dfef82ebb36 | 3ac65de111c686c95316ade660f8ba7aea3cd3cc, 0e36a3e080d6d8bd7a34e089345d043da4ac8283, 56de7778a48560278c334077ace7b9ac4bfb2fd1, 68c6c3142bfcdb049839d40a9a59ebe8ea865002, c8bfe1954a0b89e7b29b3a3e7f4c5e0ebd295e20, bf21e29d78cd2c2371023953d9c82dfef82ebb36 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
Apr 16, 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: validate zero num_subauth before sub_auth is accessed Access psid->sub_auth[psid->num_subauth - 1] without checking if num_subauth is non-zero leads to an out-of-bounds read. This patch adds a validation step to ensure num_subauth != 0 before sub_auth is accessed.
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 <3ac65de111c686c95316ade660f8ba7aea3cd3cc || >=0626e6641f6b467447c81dd7678a69c66f7746cf <0e36a3e080d6d8bd7a34e089345d043da4ac8283 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <56de7778a48560278c334077ace7b9ac4bfb2fd1 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <68c6c3142bfcdb049839d40a9a59ebe8ea865002 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <c8bfe1954a0b89e7b29b3a3e7f4c5e0ebd295e20 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <bf21e29d78cd2c2371023953d9c82dfef82ebb36 | 3ac65de111c686c95316ade660f8ba7aea3cd3cc, 0e36a3e080d6d8bd7a34e089345d043da4ac8283, 56de7778a48560278c334077ace7b9ac4bfb2fd1, 68c6c3142bfcdb049839d40a9a59ebe8ea865002, c8bfe1954a0b89e7b29b3a3e7f4c5e0ebd295e20, bf21e29d78cd2c2371023953d9c82dfef82ebb36 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
Apr 16, 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: validate zero num_subauth before sub_auth is accessed Access psid->sub_auth[psid->num_subauth - 1] without checking if num_subauth is non-zero leads to an out-of-bounds read. This patch adds a validation step to ensure num_subauth != 0 before sub_auth is accessed.
Quoted source text, attributed separately from HOL analysis.