PT-2024-26822 · Linux+4 · Linux Kernel+4
Breno Leitao
+3
·
Published
2024-04-22
·
Updated
2025-01-16
·
CVE-2024-35985
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
The issue is related to the sched/eevdf component in the Linux kernel, where the function
reweight eevdf() computes the vlag without considering the limit placed upon vlag as update entity lag() does. This can lead to a scaling multiplication overflow, causing the new vruntime to be incorrect, which in turn leads to entity eligible() returning falsely negative. As a result, pick eevdf() may return NULL, causing a NULL-deref. The problem is rare but fatal when it occurs.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linuxmint
Linux Kernel
Red Os
Ubuntu