PT-2024-32196 · Linux+6 · Linux Kernel+6
Ryusuke Konishi
·
Published
2024-09-01
·
Updated
2025-09-29
·
CVE-2024-46780
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 versions prior to 6.6.52
Description
The issue concerns the nilfs2 file system in the Linux kernel, where the superblock buffers can be overwritten, swapped, or abandoned due to various operations. Accessing these buffers requires mutual exclusion using the
nilfs->ns sem reader/writer semaphore. However, some sysfs attribute show methods read the superblock buffer without this necessary mutual exclusion, leading to potential problems with pointer dereferencing and memory access.Recommendations
To resolve the issue, update the Linux kernel to version 6.6.52 or later. As a temporary workaround, consider restricting access to the sysfs attributes that read the superblock buffer without mutual exclusion, until a patch is available.
Exploit
Fix
Buffer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu