Answer in brief
CVE-2026-74443 records a Unknown severity vulnerability in drm/vmwgfx: bound DMA command body size against suffix pointer. 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 | >=4e4ddd47774313accc86b233d6ca2c6a9037a671 <036e16ada95389bdc30f41068af04c1d0872fad0 || >=4e4ddd47774313accc86b233d6ca2c6a9037a671 <d5d7ada4e1296b00d89fe82b2ca850cc7809d6f7 || >=4e4ddd47774313accc86b233d6ca2c6a9037a671 <7e40e6120fb232a10b543ffd994e5c6d8f3a2cc6 || >=4e4ddd47774313accc86b233d6ca2c6a9037a671 <9759da60e38d7b9db44dc92713e4e0391883d221 || >=4e4ddd47774313accc86b233d6ca2c6a9037a671 <f4f1db96bfd68b81053693ba53405b6f510ac16c | 036e16ada95389bdc30f41068af04c1d0872fad0, d5d7ada4e1296b00d89fe82b2ca850cc7809d6f7, 7e40e6120fb232a10b543ffd994e5c6d8f3a2cc6, 9759da60e38d7b9db44dc92713e4e0391883d221, f4f1db96bfd68b81053693ba53405b6f510ac16c |
| Linux/Linuxgeneric | 2.6.33 | 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: drm/vmwgfx: bound DMA command body size against suffix pointer vmw_cmd_dma() locates the DMA suffix at (unsigned long) &cmd->body + header->size - sizeof(*suffix) without checking that header->size is large enough to contain both cmd->body and the suffix. An undersized header makes the suffix pointer underflow back into the previous command in the bounce buffer. The verifier later writes suffix->maximumOffset, clobbering verified fields of an already-relocated earlier command -- a TOCTOU on the device-visible command stream that lets one command rewrite another's GMR id, surface id, or other authenticated fields. Reject the command if the body is too small for the suffix to fit.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-74443 records a Unknown severity vulnerability in drm/vmwgfx: bound DMA command body size against suffix pointer. 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 | >=4e4ddd47774313accc86b233d6ca2c6a9037a671 <036e16ada95389bdc30f41068af04c1d0872fad0 || >=4e4ddd47774313accc86b233d6ca2c6a9037a671 <d5d7ada4e1296b00d89fe82b2ca850cc7809d6f7 || >=4e4ddd47774313accc86b233d6ca2c6a9037a671 <7e40e6120fb232a10b543ffd994e5c6d8f3a2cc6 || >=4e4ddd47774313accc86b233d6ca2c6a9037a671 <9759da60e38d7b9db44dc92713e4e0391883d221 || >=4e4ddd47774313accc86b233d6ca2c6a9037a671 <f4f1db96bfd68b81053693ba53405b6f510ac16c | 036e16ada95389bdc30f41068af04c1d0872fad0, d5d7ada4e1296b00d89fe82b2ca850cc7809d6f7, 7e40e6120fb232a10b543ffd994e5c6d8f3a2cc6, 9759da60e38d7b9db44dc92713e4e0391883d221, f4f1db96bfd68b81053693ba53405b6f510ac16c |
| Linux/Linuxgeneric | 2.6.33 | 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: drm/vmwgfx: bound DMA command body size against suffix pointer vmw_cmd_dma() locates the DMA suffix at (unsigned long) &cmd->body + header->size - sizeof(*suffix) without checking that header->size is large enough to contain both cmd->body and the suffix. An undersized header makes the suffix pointer underflow back into the previous command in the bounce buffer. The verifier later writes suffix->maximumOffset, clobbering verified fields of an already-relocated earlier command -- a TOCTOU on the device-visible command stream that lets one command rewrite another's GMR id, surface id, or other authenticated fields. Reject the command if the body is too small for the suffix to fit.
Quoted source text, attributed separately from HOL analysis.