CVE-2026-43093

Katalog CVE

CVSS 7.8 · High EPSS 0,18%

Kerentanan pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: xsk: tighten UMEM headroom validation to account for tailroom and min frame The current headroom validation in xdp_umem_reg() could leave us with insufficient space dedicated to even receive minimum-sized ethernet frame. Furthermore if multi-buffer would come to play then skb_shared_info stored at the end of XSK frame would be corrupted. HW typically works with 128-aligned sizes so let us provide this value as bare minimum. Multi-buffer setting is known later in the configuration process so besides accounting for 128 bytes, let us also take care of tailroom space upfront.

Rincian

Terbit di NVD

6 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Modified

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)

0,18% peluang dieksploitasi; lebih tinggi dari 6,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/0ec4d3f6e6934deb843b561ae048cd17218e5ad1 patch
• https://git.kernel.org/stable/c/6523bc1b40e69301f24c14338b762af4739d6d39 patch
• https://git.kernel.org/stable/c/9ea6ba4f3195dcba6e8b3e7b2e748593b7cafb12 patch
• https://git.kernel.org/stable/c/a03975beb9f6af0d8ac051e30b2abeabe618414f patch
• https://git.kernel.org/stable/c/a315e022a72d95ef5f1d4e58e903cb492b0ad931 patch
• https://git.kernel.org/stable/c/1a6051cd7e3e4c54ff3854a43b638b9292af5e67
• https://git.kernel.org/stable/c/5f123bc278bf4e3283d8606321bebbfd299f4384
• https://git.kernel.org/stable/c/8769708add9eadeea8041a9761771bb715a87104