Answer in brief
CVE-2026-74444 records a High severity (CVSS 7.8) vulnerability in drm/vmwgfx: validate DRAW_PRIMITIVES header size before division. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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.
CVSS is 7.8. 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7a73ba7469cbea631050094fd14f73acebb97cf9 <2666cddf0dd218aa9bd1f99db688d1b532eac21a || >=7a73ba7469cbea631050094fd14f73acebb97cf9 <fc0c02f510e41650df3479f96e257acf87d8a20a || >=7a73ba7469cbea631050094fd14f73acebb97cf9 <dc0be7662b7b0ce28cb5eea864737793ed7b9e70 || >=7a73ba7469cbea631050094fd14f73acebb97cf9 <c77cf8edae2bd3a1599115301cc7c98d0c78e731 || >=7a73ba7469cbea631050094fd14f73acebb97cf9 <85891d174707d8bddcec7a888fb4e1d17def34f3 | 2666cddf0dd218aa9bd1f99db688d1b532eac21a, fc0c02f510e41650df3479f96e257acf87d8a20a, dc0be7662b7b0ce28cb5eea864737793ed7b9e70, c77cf8edae2bd3a1599115301cc7c98d0c78e731, 85891d174707d8bddcec7a888fb4e1d17def34f3 |
| Linux/Linuxgeneric | 2.6.33 | Not reported |
| Linux/Linuxgeneric | >=7a73ba7469cbea631050094fd14f73acebb97cf9 <b89ca4bba820f79dde52af15ee139fe6e8bbc314 || >=7a73ba7469cbea631050094fd14f73acebb97cf9 <bef30317fcb4c838a37bceb2fc76256eb6b975c1 || >=7a73ba7469cbea631050094fd14f73acebb97cf9 <112c6ff29a56f3a22db4d5af869697aa07035ad6 || >=7a73ba7469cbea631050094fd14f73acebb97cf9 <2666cddf0dd218aa9bd1f99db688d1b532eac21a || >=7a73ba7469cbea631050094fd14f73acebb97cf9 <fc0c02f510e41650df3479f96e257acf87d8a20a || >=7a73ba7469cbea631050094fd14f73acebb97cf9 <dc0be7662b7b0ce28cb5eea864737793ed7b9e70 || >=7a73ba7469cbea631050094fd14f73acebb97cf9 <c77cf8edae2bd3a1599115301cc7c98d0c78e731 || >=7a73ba7469cbea631050094fd14f73acebb97cf9 <85891d174707d8bddcec7a888fb4e1d17def34f3 | b89ca4bba820f79dde52af15ee139fe6e8bbc314, bef30317fcb4c838a37bceb2fc76256eb6b975c1, 112c6ff29a56f3a22db4d5af869697aa07035ad6, 2666cddf0dd218aa9bd1f99db688d1b532eac21a, fc0c02f510e41650df3479f96e257acf87d8a20a, dc0be7662b7b0ce28cb5eea864737793ed7b9e70, c77cf8edae2bd3a1599115301cc7c98d0c78e731, 85891d174707d8bddcec7a888fb4e1d17def34f3 |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 19, 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: drm/vmwgfx: validate DRAW_PRIMITIVES header size before division vmw_cmd_draw() computes maxnum = (header->size - sizeof(cmd->body)) / sizeof(*decl); where header->size is u32 and is taken straight from the user-supplied command stream. When header->size is less than sizeof(cmd->body) the unsigned subtraction wraps to nearly 4 GiB, producing a huge maxnum. Any user-controlled cmd->body.numVertexDecls then passes the bound and the loop dereferences decl[i] far past the end of the kernel command bounce buffer, producing an out-of-bounds read of kernel memory. Reject undersized headers up front.
Quoted source text, attributed separately from HOL analysis.