CVE-2026-74444

Katalog CVE

CVSS 7.8 · High EPSS 0,13%

Skor CVSS 3.1 7.8 (High) menurut CNA.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

15 Agustus 2026

Terakhir diubah

19 Agustus 2026

Status NVD

Received

CVSS 3.1

7.8 (High), sumber CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

EPSS (30 hari)

0,13% peluang dieksploitasi; lebih tinggi dari 2,2% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/112c6ff29a56f3a22db4d5af869697aa07035ad6
• https://git.kernel.org/stable/c/2666cddf0dd218aa9bd1f99db688d1b532eac21a
• https://git.kernel.org/stable/c/85891d174707d8bddcec7a888fb4e1d17def34f3
• https://git.kernel.org/stable/c/b89ca4bba820f79dde52af15ee139fe6e8bbc314
• https://git.kernel.org/stable/c/bef30317fcb4c838a37bceb2fc76256eb6b975c1
• https://git.kernel.org/stable/c/c77cf8edae2bd3a1599115301cc7c98d0c78e731
• https://git.kernel.org/stable/c/dc0be7662b7b0ce28cb5eea864737793ed7b9e70
• https://git.kernel.org/stable/c/fc0c02f510e41650df3479f96e257acf87d8a20a