PT-2024-14596 · Linux+9 · Linux Kernel+9
Published
2023-12-29
·
Updated
2025-09-29
·
CVE-2023-52489
CVSS v3.1
4.7
Medium
| Vector | AV:L/AC:H/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 race condition in the Linux kernel's sparse memory management can cause a kernel crash when accessing
memory section->usage. This issue occurs when the system memory configuration has PFNs (Page Frame Numbers) arranged as [ZONE NORMAL ZONE DEVICE ZONE NORMAL], and compaction is triggered on device memory PFNs. The crash logs are available, showing a kernel NULL pointer dereference at a virtual address. The issue is resolved by clearing SECTION HAS MEM MAP before freeing ->usage, using RCU protected read-side critical sections, and freeing ->usage with kfree rcu().Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Race Condition
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Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Astra Linux
Centos
Linuxmint
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu