libceph: replace BUG_ON with bounds check for map->max_osd
Priority LOW 39Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 4 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
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 ]
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00528 44th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.159, 6.6.119, 6.12.61 +2Red Hat: 4 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.159, 6.6.119, 6.12.61, 6.17.11, 6.18
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2025-68283
- 2026-10-03 Alias added: GHSA-3g24-mff9-8mv9
- 2026-10-16 CISA SSVC decision points changed
References
Other 5
- https://git.kernel.org/stable/c/57f5fbae9f1024aba17ff75e00433324115c548a
- https://git.kernel.org/stable/c/becc488a4d864db338ebd4e313aa3c77da24b604
- https://git.kernel.org/stable/c/e67e3be690f5f7e3b031cf29e8d91e6d02a8e30d
- https://git.kernel.org/stable/c/b4368b7f97014e1015445d61abd0b27c4c6e8424
- https://git.kernel.org/stable/c/ec3797f043756a94ea2d0f106022e14ac4946c02
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Sources
- CVE-2025-68283 · CVE Program
- CVE-2025-68283 · NVD
- FIRST EPSS
- GHSA-3g24-mff9-8mv9 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-68283 · Red Hat security data · CC BY 4.0
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