crypto: cavium/cpt - fix DMA cleanup using wrong loop index
Priority MEDIUM 50Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: cavium/cpt - fix DMA cleanup using wrong loop index The sg_cleanup error path used list[i] instead of list[j] when unmapping DMA buffers, leaking successfully mapped entries and repeatedly unmapping the failed one.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00755 55th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.10.261, 5.15.212, 6.1.178 +5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
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 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2026-74279
- 2026-10-03 Alias added: GHSA-4p2p-ww9m-h8rq
- 2026-10-16 CISA SSVC decision points changed
References
Other 8
- https://git.kernel.org/stable/c/23c6174e48f66fc10b998b0acdb406cb0caf5c80
- https://git.kernel.org/stable/c/23d3a7e896a1fe2d7a6bcb42f093948b79f8a198
- https://git.kernel.org/stable/c/28141f95ae93b18f9bfde953cb787fcb151fb9da
- https://git.kernel.org/stable/c/8afd1007ef79898a6e010eaade97097e49405fce
- https://git.kernel.org/stable/c/3b8a1e1f4e4071a62b20374028744e8cc8310d48
- https://git.kernel.org/stable/c/fb4d57b83356d4bd411b45ede3024e0ff42c9b5e
- https://git.kernel.org/stable/c/d319b83b97b3585550d9ae592dfa78c755b6129e
- https://git.kernel.org/stable/c/9dbf173bd32d5f81b005008b682bfb50aa093455
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Sources
- CVE-2026-74279 · CVE Program
- CVE-2026-74279 · NVD
- FIRST EPSS
- GHSA-4p2p-ww9m-h8rq · GitHub Advisory Database · CC BY 4.0
- CVE-2026-74279 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences