PT-2024-11110 · Linux+2 · Linux Kernel+2
Zhen Lei
·
Published
2021-03-25
·
Updated
2025-03-19
·
CVE-2021-47006
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A vulnerability has been resolved in the Linux kernel. The issue is related to the
hw breakpoint feature, where the overflow handler hook is not properly checked. A commit set a default event->overflow handler in perf event alloc(), but one check is missing, resulting in bp->overflow handler never being NULL. As a consequence, enable single step() is always not invoked. The vulnerability is related to the perf/core component and the is default overflow handler() function.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Suse