gve: add missing NULL check for gve_alloc_pending_packet() in TX DQO
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 3 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
In the Linux kernel, the following vulnerability has been resolved: gve: add missing NULL check for gve_alloc_pending_packet() in TX DQO gve_alloc_pending_packet() can return NULL, but gve_tx_add_skb_dqo() did not check for this case before dereferencing the returned pointer. Add a missing NULL check to prevent a potential NULL pointer dereference when allocation fails. This improves robustness in low-memory scenarios.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.14 and later | 5.15.186, 6.1.142, 6.6.94, 6.12.34, 6.15.3, 6.16 | Patch available | CNA |
- Linux VendorLinux Affected 5.14 and later Fixed in 5.15.186, 6.1.142, 6.6.94, 6.12.34, 6.15.3, 6.16 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.186, 6.1.142, 6.6.94, 6.12.34, 6.15.3, 6.16
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 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2025-38122
- 2026-10-03 Alias added: GHSA-7pxg-rrcr-gqm5
- 2026-11-05 CISA SSVC decision points changed
References
Patch 6
- https://git.kernel.org/stable/c/ae98a1787fdcb0096d122bc80d93c3c7d812c04b
- https://git.kernel.org/stable/c/2e5ead9e4e91fbe7799bd38afd8904543be1cb51
- https://git.kernel.org/stable/c/7f6265fce3bd424ded666481b37f106d7915fb6b
- https://git.kernel.org/stable/c/a0319c9b1648a67511e947a596ca86888451c0a7
- https://git.kernel.org/stable/c/c741a7ef68023ac800054e2131c3e22e647fd7e3
- https://git.kernel.org/stable/c/12c331b29c7397ac3b03584e12902990693bc248
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- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2025-38122 · CVE Program
- CVE-2025-38122 · NVD
- FIRST EPSS
- GHSA-7pxg-rrcr-gqm5 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-38122 · 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