CVE-2026-53322

Katalog CVE

CVSS 8.8 · High EPSS 0,13%

Kerentanan Double Free pada linux kernel. Skor CVSS 3.1 8.8 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Clean up DMABUFs before disabling function On device shutdown, make vfio_pci_core_close_device() call vfio_pci_dma_buf_cleanup() before the function is disabled via vfio_pci_core_disable(). This ensures that all access via DMABUFs is revoked before the function's BARs become inaccessible. This fixes an issue where, if the function is disabled first, a tiny window exists in which the function's MSE is cleared and yet BARs could still be accessed via the DMABUF. The resources would also be freed and up for grabs by a different driver.

Rincian

Terbit di NVD

26 Juni 2026

Terakhir diubah

9 September 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-415: Double Free
CWE-826: Premature Release of Resource During Expected Lifetime

EPSS (30 hari)

0,13% peluang dieksploitasi; lebih tinggi dari 2,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/4f1000a30f67cf7d328059242776a858611d5ef9 patch
• https://git.kernel.org/stable/c/d97708701434ce72968e771976aaf9d3438fcafd patch
• https://access.redhat.com/security/cve/CVE-2026-53322 advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=2493709 advisory pihak ketiga
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53322.json advisory pihak ketiga
• https://access.redhat.com/errata/RHSA-2026:65334