Answer in brief
CVE-2025-21947 records a Unknown severity vulnerability in ksmbd: fix type confusion via race condition when using ipc_msg_send_request. 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-2025-21947 records a Unknown severity vulnerability in ksmbd: fix type confusion via race condition when using ipc_msg_send_request. 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 <6321bbda4244b93802d61cfe0887883aae322f4b || >=0626e6641f6b467447c81dd7678a69c66f7746cf <76861630b29e51373e73e7b00ad0d467b6941162 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <3cb2b2e41541fe6f9cc55ca22d4c0bd260498aea || >=0626e6641f6b467447c81dd7678a69c66f7746cf <1e8833c03a38e1d5d5df6484e3f670a2fd38fb76 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <e2ff19f0b7a30e03516e6eb73b948e27a55bc9d2 | 6321bbda4244b93802d61cfe0887883aae322f4b, 76861630b29e51373e73e7b00ad0d467b6941162, 3cb2b2e41541fe6f9cc55ca22d4c0bd260498aea, 1e8833c03a38e1d5d5df6484e3f670a2fd38fb76, e2ff19f0b7a30e03516e6eb73b948e27a55bc9d2 |
| 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 type confusion via race condition when using ipc_msg_send_request req->handle is allocated using ksmbd_acquire_id(&ipc_ida), based on ida_alloc. req->handle from ksmbd_ipc_login_request and FSCTL_PIPE_TRANSCEIVE ioctl can be same and it could lead to type confusion between messages, resulting in access to unexpected parts of memory after an incorrect delivery. ksmbd check type of ipc response but missing add continue to check next ipc reponse.
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 <6321bbda4244b93802d61cfe0887883aae322f4b || >=0626e6641f6b467447c81dd7678a69c66f7746cf <76861630b29e51373e73e7b00ad0d467b6941162 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <3cb2b2e41541fe6f9cc55ca22d4c0bd260498aea || >=0626e6641f6b467447c81dd7678a69c66f7746cf <1e8833c03a38e1d5d5df6484e3f670a2fd38fb76 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <e2ff19f0b7a30e03516e6eb73b948e27a55bc9d2 | 6321bbda4244b93802d61cfe0887883aae322f4b, 76861630b29e51373e73e7b00ad0d467b6941162, 3cb2b2e41541fe6f9cc55ca22d4c0bd260498aea, 1e8833c03a38e1d5d5df6484e3f670a2fd38fb76, e2ff19f0b7a30e03516e6eb73b948e27a55bc9d2 |
| 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 type confusion via race condition when using ipc_msg_send_request req->handle is allocated using ksmbd_acquire_id(&ipc_ida), based on ida_alloc. req->handle from ksmbd_ipc_login_request and FSCTL_PIPE_TRANSCEIVE ioctl can be same and it could lead to type confusion between messages, resulting in access to unexpected parts of memory after an incorrect delivery. ksmbd check type of ipc response but missing add continue to check next ipc reponse.
Quoted source text, attributed separately from HOL analysis.