CVE-2026-52950

Katalog CVE

CVSS 7.8 · High EPSS 0,18%

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

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: drm/xe/dma-buf: fix UAF with retry loop Retry doesn't work here, since bo will be freed on error, leading to UAF. However, now that we do the alloc & init before the attach, we can now combine this as one unit and have the init do the alloc for us. This should make the retry safe. Reported by Sashiko. v2: Fix up the error unwind (CI) (cherry picked from commit 479669418253e0f27f8cf5db01a731352ea592e7)

Rincian

Terbit di NVD

24 Juni 2026

Terakhir diubah

27 Juli 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

Jenis kelemahan (CWE)

CWE-416: Use After Free
CWE-825: Expired Pointer Dereference

EPSS (30 hari)

0,18% peluang dieksploitasi; lebih tinggi dari 6,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/155a372a1cc50fa93387c5d3cdfd614a61e1afd1 patch
• https://git.kernel.org/stable/c/39fdac6be02eb7c3460518c1c4085f75f935c4ce patch
• https://git.kernel.org/stable/c/827062952ed9bdf4220466c1f05ce452d04bdedf patch
• https://access.redhat.com/security/cve/CVE-2026-52950 advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=2492318 advisory pihak ketiga
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52950.json advisory pihak ketiga
• https://access.redhat.com/errata/RHSA-2026:42919
• https://access.redhat.com/errata/RHSA-2026:45192