CVE-2026-89593

Katalog CVE

CVSS 7.1 · High EPSS 0,13%

Skor CVSS 3.1 7.1 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: hugetlb: only adjust reservation during unmapping if mapcount is 0 Since df7a6d1f6405, __unmap_hugepage_range can adjust reservations. In the case of folio mapped in both a parent and a child, if the parent unmaps the range first, the reservation adjustment will result in an underflow of the reserved count. Once the child unmaps the range, the count is restored. Change __unmap_hugepage_range() to check the mapcount before adjusting the reservation.

Rincian

Terbit di NVD

11 September 2026

Terakhir diubah

14 September 2026

Status NVD

Received

CVSS 3.1

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

EPSS (30 hari)

0,13% peluang dieksploitasi; lebih tinggi dari 2,0% 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/0f001491e5a2ec69aa9d5dd6b799e5742245f9ea
• https://git.kernel.org/stable/c/5120b1e048d48596ffaec1a8412012a91adba73b
• https://git.kernel.org/stable/c/a3c65af20cceb7f997847727636b4017326f845d
• https://git.kernel.org/stable/c/b0b1b9ca80b795ed2223e76dd787db7067121fb9