CVE-2022-49000

Katalog CVE

CVSS 5.5 · Medium EPSS 0,25%

Kerentanan pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix PCI device refcount leak in has_external_pci() for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() before 'return true' to avoid reference count leak.

Rincian

Terbit di NVD

21 Oktober 2024

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

EPSS (30 hari)

0,25% peluang dieksploitasi; lebih tinggi dari 14,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/10ed7655a17f6a3eaecd1293830488259ccd5723 patch
• https://git.kernel.org/stable/c/17f67414718e6aba123335a33b7d15aa594fff34 patch
• https://git.kernel.org/stable/c/afca9e19cc720bfafc75dc5ce429c185ca93f31d patch
• https://git.kernel.org/stable/c/b6eea8b2e858a20ad58ac62dc2de90fea2413f94 patch