CVE-2024-40974
kernel: powerpc/pseries: Enforce hcall result buffer validity and size
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 12, 2024
Updated · August 5, 2026
Description
A vulnerability was found in the Linux kernel's powerpc/pseries architecture, where certain hypercall functions did not properly enforce the validity and size of result buffers provided by callers, lead to stack corruption if the buffer is too small, as the lack of compiler checks allows for potential runtime errors.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 6.6CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer