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… (CVE-2025-68283)
A vulnerability in the Linux kernel's libceph component involved the use of BUG_ON for map->max_osd boundary checks. This was replaced with proper bounds checking to validate OSD indexes, which come from untrusted network packets. The fix removes the BUG_ON call in ceph_get_primary_affinity() and adds boundary validation to prevent potential issues.
AI Analysis
Technical Summary
The Linux kernel's libceph module had a vulnerability where OSD indexes derived from untrusted network packets were not properly validated against map->max_osd. The original code used BUG_ON, which is not suitable for handling untrusted input. This was replaced with explicit boundary checks to ensure OSD indexes do not exceed map->max_osd, mitigating the risk of kernel crashes or denial of service. The change includes dropping BUG_ON in ceph_get_primary_affinity() and adding proper validation logic.
Potential Impact
The vulnerability could lead to a denial of service (DoS) condition in the Linux kernel due to improper handling of out-of-bounds OSD indexes from untrusted network packets. There is no indication of confidentiality or integrity impact. The CVSS vector indicates no confidentiality or integrity impact but a high impact on availability.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to replace the BUG_ON with proper boundary checks for map->max_osd in libceph. Users should update to the fixed kernel version once it is available. Patch status is not yet confirmed in this data; check the official Linux kernel advisories for the exact fixed versions and apply updates accordingly.
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… (CVE-2025-68283)
Description
A vulnerability in the Linux kernel's libceph component involved the use of BUG_ON for map->max_osd boundary checks. This was replaced with proper bounds checking to validate OSD indexes, which come from untrusted network packets. The fix removes the BUG_ON call in ceph_get_primary_affinity() and adds boundary validation to prevent potential issues.
CVSS v3.1
Score 7.5high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel's libceph module had a vulnerability where OSD indexes derived from untrusted network packets were not properly validated against map->max_osd. The original code used BUG_ON, which is not suitable for handling untrusted input. This was replaced with explicit boundary checks to ensure OSD indexes do not exceed map->max_osd, mitigating the risk of kernel crashes or denial of service. The change includes dropping BUG_ON in ceph_get_primary_affinity() and adding proper validation logic.
Potential Impact
The vulnerability could lead to a denial of service (DoS) condition in the Linux kernel due to improper handling of out-of-bounds OSD indexes from untrusted network packets. There is no indication of confidentiality or integrity impact. The CVSS vector indicates no confidentiality or integrity impact but a high impact on availability.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to replace the BUG_ON with proper boundary checks for map->max_osd in libceph. Users should update to the fixed kernel version once it is available. Patch status is not yet confirmed in this data; check the official Linux kernel advisories for the exact fixed versions and apply updates accordingly.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-3g24-mff9-8mv9
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2025-68283"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
Threat ID: 6a6b72d39c2644c7f847891c
Added to database: 07/30/2026, 15:50:43 UTC
Last enriched: 07/30/2026, 18:08:50 UTC
Last updated: 09/10/2026, 19:26:52 UTC
Views: 10
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