page_pool: always add GFP_NOWARN for ATOMIC allocations
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: page_pool: always add GFP_NOWARN for ATOMIC allocations Driver authors often forget to add GFP_NOWARN for page allocation from the datapath. This is annoying to users as OOMs are a fact of life, and we pretty much expect network Rx to hit page allocation failures during OOM. Make page pool add GFP_NOWARN for ATOMIC allocations by default.
Why it matters now
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 5.10.273, 5.15.197, 6.1.159, 6.6.117, 6.12.58, 6.17.8, 6.18
Vendor assessments
Red Hat
Red Hat rating: Low. 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-2025-68321
- 2026-10-03 Alias added: GHSA-r8w7-3p4p-f22f
- 2026-10-16 CISA SSVC decision points changed
- 2026-10-30 Fix available: Linux/Linux@3c4c2c96d00d112626736cc865b3c75aa8fb6de3, Linux/[email protected] · CNA
- 2026-10-30 1 new reference · CNA
References
Other 7
- https://git.kernel.org/stable/c/3c4c2c96d00d112626736cc865b3c75aa8fb6de3
- https://git.kernel.org/stable/c/0ec2cd5c58793d0c622797cd5fbe26634b357210
- https://git.kernel.org/stable/c/9835a0fd59a1df5ec0740fdab6d50db68e0f10de
- https://git.kernel.org/stable/c/7613c06ffa89c1e2266fb532e23ef7dfdf269d73
- https://git.kernel.org/stable/c/3671a0775952026228ae44e096eb144bca75f8dc
- https://git.kernel.org/stable/c/ab48dc0e23eb714b3f233f8e8f6deed7df2051f5
- https://git.kernel.org/stable/c/f3b52167a0cb23b27414452fbc1278da2ee884fc
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Sources
- CVE-2025-68321 · CVE Program
- CVE-2025-68321 · NVD
- FIRST EPSS
- GHSA-r8w7-3p4p-f22f · GitHub Advisory Database · CC BY 4.0
- CVE-2025-68321 · Red Hat security data · CC BY 4.0
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