PT-2024-37005 · Linux · Linux Kernel

Published 2024-12-28 · Updated 2025-01-01 · CVE-2024-56695

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue concerns the kfd get cu occupancy function, which previously declared a large cu occupancy array as a local variable. This could lead to stack overflows due to excessive stack usage, particularly in scenarios where AMDGPU MAX QUEUES is large. The vulnerability has been resolved by replacing the static array allocation with dynamic memory allocation using kcalloc, reducing the stack size and avoiding the risk of stack overflows in kernel space. The allocated memory is freed using kfree before the function returns to prevent memory leaks.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2024-56695

Affected Products

Linux Kernel

References · 15

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56695.json · Exploit
• https://linux.oracle.com/errata/ELSA-2025-20530.html · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-56695 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2024-56695 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-56695 · Security Note
• https://linux.oracle.com/errata/ELSA-2025-20480.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-56695 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-56695 · Security Note
• https://git.kernel.org/stable/c/6d9f07196389f35a3afebcf1a12c1425725caddd · Patch
• https://ubuntu.com/security/CVE-2024-56695 · Vendor Advisory
• https://git.kernel.org/stable/c/922f0e00017b09d9d47e3efac008c8b20ed546a0 · Patch
• https://t.me/cvedetector/13837 · Telegram Post
• https://git.kernel.org/linus/922f0e00017b09d9d47e3efac008c8b20ed546a0 · Note
• https://docs.bell-sw.com/security/cves/CVE-2024-56695 · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note