Answer in brief
CVE-2025-40203 records a Unknown severity vulnerability in listmount: don't call path_put() under namespace semaphore. 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 | >=b4c2bea8ceaa50cd42a8f73667389d801a3ecf2d <659874b7ee4976ad9ce476e07fd36bc67b3537f1 || >=b4c2bea8ceaa50cd42a8f73667389d801a3ecf2d <9c80da26fda2fdcaac7f92b5908875b3108830ff || >=b4c2bea8ceaa50cd42a8f73667389d801a3ecf2d <c1f86d0ac322c7e77f6f8dbd216c65d39358ffc0 | 659874b7ee4976ad9ce476e07fd36bc67b3537f1, 9c80da26fda2fdcaac7f92b5908875b3108830ff, c1f86d0ac322c7e77f6f8dbd216c65d39358ffc0 |
| Linux/Linuxgeneric | 6.8 | Not reported |
Published upstream
Nov 12, 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: listmount: don't call path_put() under namespace semaphore Massage listmount() and make sure we don't call path_put() under the namespace semaphore. If we put the last reference we're fscked.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2025-40203 records a Unknown severity vulnerability in listmount: don't call path_put() under namespace semaphore. 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 | >=b4c2bea8ceaa50cd42a8f73667389d801a3ecf2d <659874b7ee4976ad9ce476e07fd36bc67b3537f1 || >=b4c2bea8ceaa50cd42a8f73667389d801a3ecf2d <9c80da26fda2fdcaac7f92b5908875b3108830ff || >=b4c2bea8ceaa50cd42a8f73667389d801a3ecf2d <c1f86d0ac322c7e77f6f8dbd216c65d39358ffc0 | 659874b7ee4976ad9ce476e07fd36bc67b3537f1, 9c80da26fda2fdcaac7f92b5908875b3108830ff, c1f86d0ac322c7e77f6f8dbd216c65d39358ffc0 |
| Linux/Linuxgeneric | 6.8 | Not reported |
Published upstream
Nov 12, 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: listmount: don't call path_put() under namespace semaphore Massage listmount() and make sure we don't call path_put() under the namespace semaphore. If we put the last reference we're fscked.
Quoted source text, attributed separately from HOL analysis.