CVE-2025-68283
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-16

Last updated on: 2025-12-18

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: libceph: replace BUG_ON with bounds check for map->max_osd OSD indexes come from untrusted network packets. Boundary checks are added to validate these against map->max_osd. [ idryomov: drop BUG_ON in ceph_get_primary_affinity(), minor cosmetic edits ]
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Meta Information
Published
2025-12-16
Last Modified
2025-12-18
Generated
2026-06-16
AI Q&A
2025-12-16
EPSS Evaluated
2026-06-15
NVD
CVE-2025-68283
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux kernel *
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability in the Linux kernel's libceph component involved the use of BUG_ON, which is a kernel debugging macro, instead of proper boundary checks for the map->max_osd value. Since OSD indexes come from untrusted network packets, the lack of boundary checks could lead to improper handling of these indexes. The fix replaced BUG_ON with explicit boundary checks to validate OSD indexes against map->max_osd, preventing potential issues caused by invalid or malicious input.

Impact Analysis

Because OSD indexes are derived from untrusted network packets, the absence of proper boundary checks could allow malformed or malicious packets to trigger kernel bugs or crashes, potentially leading to denial of service or other stability issues in systems using the affected Linux kernel version.

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