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]

Classification

CVE ID: CVE-2024-47751

CVSS Base Severity: HIGH

CVSS Base Score: 7.8

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

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.03% (probability of being exploited)

EPSS Percentile: 6.16% (scored less or equal to compared to others)

EPSS Date: 2025-06-02 (when was this score calculated)

Stakeholder-Specific Vulnerability Categorization (SSVC)

SSVC Exploitation: none

SSVC Technical Impact: partial

SSVC Automatable: false

References

https://nvd.nist.gov/vuln/detail/CVE-2024-47751
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

Timeline