CVE-2024-47751 Information

Description

In the Linux kernel the following vulnerability has been resolved:

PCI: kirin: Fix buffer overflow in kirin_pcie_parse_port()

Within kirin_pcie_parse_port() the pcie->num_slots is compared to pcie->gpio_id_reset size (MAX_PCI_SLOTS) which is correct and would lead to an overflow.

Thus fix condition to pcie->num_slots + 1 >= MAX_PCI_SLOTS and move pcie->num_slots increment below the if-statement to avoid out-of-bounds array access.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

[kwilczynski: commit log]

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://git.kernel.org/stable/c/a5f795f9412854df28e66679c5e6b68b0b79c229 https://git.kernel.org/stable/c/95248d7497bcbfe7deed4805469c6ff6ddd7f9d1 https://git.kernel.org/stable/c/6dcc5b49d6607a741a14122bf3105f3ac50d259e https://git.kernel.org/stable/c/aeb0335971806e15ac91e838ca471936c8e7efd5 https://git.kernel.org/stable/c/c500a86693a126c9393e602741e348f80f1b0fc5

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8