Answer in brief
CVE-2026-72318 records a Unknown severity vulnerability in cifs: validate DFS referral string offsets. 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 | >=4ecce920e13ace16a5ba45efe8909946c28fb2ad <76c607b9353d377b1d1b11db50e743eee0ccf658 || >=4ecce920e13ace16a5ba45efe8909946c28fb2ad <d64b6be5740ce230aca184d8d224c75d9866045d || >=4ecce920e13ace16a5ba45efe8909946c28fb2ad <929a85932d14190988f1eafd6ee8cc68d66ace0b || >=4ecce920e13ace16a5ba45efe8909946c28fb2ad <b784cd1c24d89bf71be2efe1e948ff7c03371e57 || >=4ecce920e13ace16a5ba45efe8909946c28fb2ad <c37abc99bb3de3d3219ecef253d649f74117fd83 || >=4ecce920e13ace16a5ba45efe8909946c28fb2ad <027a84ac6b50c12ef767c15abfc58aa865820e9e | 76c607b9353d377b1d1b11db50e743eee0ccf658, d64b6be5740ce230aca184d8d224c75d9866045d, 929a85932d14190988f1eafd6ee8cc68d66ace0b, b784cd1c24d89bf71be2efe1e948ff7c03371e57, c37abc99bb3de3d3219ecef253d649f74117fd83, 027a84ac6b50c12ef767c15abfc58aa865820e9e |
| Linux/Linuxgeneric | 4.11 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: cifs: validate DFS referral string offsets parse_dfs_referrals() validates that the response header and referral array fit in the received buffer, but each referral also contains string offsets supplied by the server. Those offsets are used to compute the DfsPath and NetworkAddress string pointers without checking whether they still point inside the response buffer. A malformed referral can therefore make the computed pointer exceed the end of the buffer. The resulting negative max_len is then passed to cifs_strndup_from_utf16(), and the non-Unicode path forwards it to kstrndup() as a size_t, allowing strnlen() to read out of bounds. Validate each string offset before deriving the string pointer.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-72318 records a Unknown severity vulnerability in cifs: validate DFS referral string offsets. 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 | >=4ecce920e13ace16a5ba45efe8909946c28fb2ad <76c607b9353d377b1d1b11db50e743eee0ccf658 || >=4ecce920e13ace16a5ba45efe8909946c28fb2ad <d64b6be5740ce230aca184d8d224c75d9866045d || >=4ecce920e13ace16a5ba45efe8909946c28fb2ad <929a85932d14190988f1eafd6ee8cc68d66ace0b || >=4ecce920e13ace16a5ba45efe8909946c28fb2ad <b784cd1c24d89bf71be2efe1e948ff7c03371e57 || >=4ecce920e13ace16a5ba45efe8909946c28fb2ad <c37abc99bb3de3d3219ecef253d649f74117fd83 || >=4ecce920e13ace16a5ba45efe8909946c28fb2ad <027a84ac6b50c12ef767c15abfc58aa865820e9e | 76c607b9353d377b1d1b11db50e743eee0ccf658, d64b6be5740ce230aca184d8d224c75d9866045d, 929a85932d14190988f1eafd6ee8cc68d66ace0b, b784cd1c24d89bf71be2efe1e948ff7c03371e57, c37abc99bb3de3d3219ecef253d649f74117fd83, 027a84ac6b50c12ef767c15abfc58aa865820e9e |
| Linux/Linuxgeneric | 4.11 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: cifs: validate DFS referral string offsets parse_dfs_referrals() validates that the response header and referral array fit in the received buffer, but each referral also contains string offsets supplied by the server. Those offsets are used to compute the DfsPath and NetworkAddress string pointers without checking whether they still point inside the response buffer. A malformed referral can therefore make the computed pointer exceed the end of the buffer. The resulting negative max_len is then passed to cifs_strndup_from_utf16(), and the non-Unicode path forwards it to kstrndup() as a size_t, allowing strnlen() to read out of bounds. Validate each string offset before deriving the string pointer.
Quoted source text, attributed separately from HOL analysis.