CVE-2026-89806

Katalog CVE

CVSS 8.4 · High EPSS 0,20%

Skor CVSS 3.1 8.4 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: drm/sysfb: ofdrm: Fix integer overflow in fb_size calculation The framebuffer size calculation `fb_size = linebytes * height` can overflow when both values are large (e.g., 46341 * 46341 > INT_MAX). Since linebytes and height are both int types, the multiplication is performed as int * int, which results in undefined behavior on overflow. Use check_mul_overflow() to detect and prevent this overflow, consistent with the approach used in simpledrm.c and corebootdrm.c.

Rincian

Terbit di NVD

16 September 2026

Terakhir diubah

3 Oktober 2026

Status NVD

Received

CVSS 3.1

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

EPSS (30 hari)

0,20% peluang dieksploitasi; lebih tinggi dari 8,5% 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/711fe7949d37656a5586244afee9523b9e5e37e9
• https://git.kernel.org/stable/c/c6f48e59ece0123f6a11527ad4d89b21c2d65b87
• https://git.kernel.org/stable/c/d9daf9a6e7a6f82ef338a09386eefc6807100d3f
• https://git.kernel.org/stable/c/ded6ad826fe0fd059333d3a3b3e1742c8e45ff41