PT-2025-2979 · Linux+6 · Linux Kernel+6
Dario Weißer
·
Published
2024-12-16
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Updated
2026-01-23
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CVE-2024-53685
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 6.6.74
Description
The issue concerns a denial of service (DoS) vulnerability in the Linux kernel. Specifically, when the
ceph mdsc build path() function attempts to build a path longer than PATH MAX, it enters an endless loop, effectively blocking the task and making most of the machine unusable. This vulnerability is considered simple and effective. The retry mechanism in this function seems unnecessary and harmful. To address this, the function will now fail with ENAMETOOLONG instead of retrying.Recommendations
For Linux kernel versions prior to 6.6.74, update to version 6.6.74 or later to resolve the issue. As a temporary workaround, consider disabling the
ceph mdsc build path() function until a patch is available. Restrict access to paths that could potentially exceed PATH MAX to minimize the risk of exploitation. Avoid using paths longer than PATH MAX in the affected ceph mdsc build path() function until the issue is resolved.Exploit
Fix
DoS
Resource Exhaustion
Infinite Loop
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Related Identifiers
Affected Products
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu