SECUFOCUSNOW
Home›CVE index›CVE-2025-68283
Review reviewHigh

CVE-2025-68283

Linux

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 ]

CVSS
7.5
EPSS
0.46%
37.5% percentile
CISA KEV
Not listed
Published
2025.12.17
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.46%
Technical severityCVSS 7.5

Vulnerability overview

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 ]

Affected product and versions

Product
Linux
Affected versions
>= f24e9980eb860d8600cbe5ef3d2fd9295320d229 < 57f5fbae9f1024aba17ff75e00433324115c548a, >= f24e9980eb860d8600cbe5ef3d2fd9295320d229 < becc488a4d864db338ebd4e313aa3c77da24b604, >= f24e9980eb860d8600cbe5ef3d2fd9295320d229 < e67e3be690f5f7e3b031cf29e8d91e6d02a8e30d, >= f24e9980eb860d8600cbe5ef3d2fd9295320d229 < b4368b7f97014e1015445d61abd0b27c4c6e8424, >= f24e9980eb860d8600cbe5ef3d2fd9295320d229 < ec3797f043756a94ea2d0f106022e14ac4946c02, >= 2.6.34
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
Not available