CVE-2025-39836

Katalog CVE

CVSS 7.8 · High EPSS 0,15%

Kerentanan Out-of-bounds Write pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: efi: stmm: Fix incorrect buffer allocation method The communication buffer allocated by setup_mm_hdr() is later on passed to tee_shm_register_kernel_buf(). The latter expects those buffers to be contiguous pages, but setup_mm_hdr() just uses kmalloc(). That can cause various corruptions or BUGs, specifically since commit 9aec2fb0fd5e ("slab: allocate frozen pages"), though it was broken before as well. Fix this by using alloc_pages_exact() instead of kmalloc().

Rincian

Terbit di NVD

16 September 2025

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

0,15% peluang dieksploitasi; lebih tinggi dari 4,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/630c0e6064daf84f17aad1a7d9ca76b562e3fe47 patch
• https://git.kernel.org/stable/c/77ff27ff0e4529a003c8a1c2492c111968c378d3 patch
• https://git.kernel.org/stable/c/c5e81e672699e0c5557b2b755cc8f7a69aa92bff patch