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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-74444 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/2666cddf0dd218aa9bd1f99db688d1b532eac21a kernel.org
https://git.kernel.org/stable/c/85891d174707d8bddcec7a888fb4e1d17def34f3 kernel.org
https://git.kernel.org/stable/c/c77cf8edae2bd3a1599115301cc7c98d0c78e731 kernel.org
https://git.kernel.org/stable/c/dc0be7662b7b0ce28cb5eea864737793ed7b9e70 kernel.org
https://git.kernel.org/stable/c/fc0c02f510e41650df3479f96e257acf87d8a20a kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-74444
NVD Published Date:
08/15/2026
NVD Last Modified:
08/15/2026
Source:
kernel.org