CVE-2025-38688

Katalog CVE

CVSS 7.8 · High EPSS 0,17%

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

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: iommufd: Prevent ALIGN() overflow When allocating IOVA the candidate range gets aligned to the target alignment. If the range is close to ULONG_MAX then the ALIGN() can wrap resulting in a corrupted iova. Open code the ALIGN() using get_add_overflow() to prevent this. This simplifies the checks as we don't need to check for length earlier either. Consolidate the two copies of this code under a single helper. This bug would allow userspace to create a mapping that overlaps with some other mapping or a reserved range.

Rincian

Terbit di NVD

4 September 2025

Terakhir diubah

30 Juli 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

EPSS (30 hari)

0,17% peluang dieksploitasi; lebih tinggi dari 5,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/79fad1917802c28de51a479318a056a6fbe3e2f2 patch
• https://git.kernel.org/stable/c/b42497e3c0e74db061eafad41c0cd7243c46436b patch
• https://git.kernel.org/stable/c/d19b817540c0abe84854a64ee9ee34cecc3bbeef patch
• https://git.kernel.org/stable/c/e42a046bb41dcdde4f766a17d8211842007ed537 patch
• https://git.kernel.org/stable/c/ebb6021560b94649bec6b8faba6fe0dca2218e81 patch