Answer in brief
CVE-2026-72104 records a Unknown severity vulnerability in dm-pcache: reject option groups without values. 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 | >=1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 <1247615aadb74c89c1b2f01a6de7df9dab92ecb3 || >=1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 <0cbe13fe540330d31e5273bbf8cbd66bc7c9cb5a || >=1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 <d9c631e3fbd44246a2be781d26cfacbb9b8ec127 | 1247615aadb74c89c1b2f01a6de7df9dab92ecb3, 0cbe13fe540330d31e5273bbf8cbd66bc7c9cb5a, d9c631e3fbd44246a2be781d26cfacbb9b8ec127 |
| Linux/Linuxgeneric | 6.18 | 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: dm-pcache: reject option groups without values The pcache target parses optional arguments as name/value pairs. A table that advertises one optional argument and supplies only a recognized option name, for example "cache_mode", reaches parse_cache_opts() with argc == 1. The parser consumes the name, decrements argc to zero, then calls dm_shift_arg() again for the value. dm_shift_arg() returns NULL when no arguments remain, and the following strcmp() dereferences that NULL pointer. Check that each recognized option has a value before consuming it. This keeps valid "cache_mode writeback" and "data_crc true/false" tables unchanged while making malformed tables fail during target construction with a precise missing-value error.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-72104 records a Unknown severity vulnerability in dm-pcache: reject option groups without values. 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 | >=1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 <1247615aadb74c89c1b2f01a6de7df9dab92ecb3 || >=1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 <0cbe13fe540330d31e5273bbf8cbd66bc7c9cb5a || >=1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 <d9c631e3fbd44246a2be781d26cfacbb9b8ec127 | 1247615aadb74c89c1b2f01a6de7df9dab92ecb3, 0cbe13fe540330d31e5273bbf8cbd66bc7c9cb5a, d9c631e3fbd44246a2be781d26cfacbb9b8ec127 |
| Linux/Linuxgeneric | 6.18 | 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: dm-pcache: reject option groups without values The pcache target parses optional arguments as name/value pairs. A table that advertises one optional argument and supplies only a recognized option name, for example "cache_mode", reaches parse_cache_opts() with argc == 1. The parser consumes the name, decrements argc to zero, then calls dm_shift_arg() again for the value. dm_shift_arg() returns NULL when no arguments remain, and the following strcmp() dereferences that NULL pointer. Check that each recognized option has a value before consuming it. This keeps valid "cache_mode writeback" and "data_crc true/false" tables unchanged while making malformed tables fail during target construction with a precise missing-value error.
Quoted source text, attributed separately from HOL analysis.