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CVE-2026-97981

Unknown

Last modified

CVE-2026-97981 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Count dropped frames as NAPI work The RX loop only consumes budget when it successfully delivers a frame. Error paths keep consuming descriptors without reducing the budget, so a stream of bad frames can process the entire receive ring in one poll. Move the budget accounting to a common end-of-frame path. This counts each completed frame as NAPI work whether it was delivered or dropped, matching the behavior of the vendor driver..

Description

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Count dropped frames as NAPI work The RX loop only consumes budget when it successfully delivers a frame. Error paths keep consuming descriptors without reducing the budget, so a stream of bad frames can process the entire receive ring in one poll. Move the budget accounting to a common end-of-frame path. This counts each completed frame as NAPI work whether it was delivered or dropped, matching the behavior of the vendor driver.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88, < 58140f1cebb776d174dc6ff41c15401654a5b1ea; >= 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88, < cceb6cd7f0e5ed2944a9ca22443d7b9da82f60ab; >= 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88, < 5754e0c0758805096ecfeaf4c1b146ad51ed246f; >= 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88, < b856c552f556bc0341c1dbe0bf88e630fd1dc4b7
LinuxLinux4.16

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-97981?
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Count dropped frames as NAPI work The RX loop only consumes budget when it successfully delivers a frame. Error paths keep consuming descriptors without reducing the budget, so a stream of bad frames can process the entire receive ring in one poll. Move the budget accounting to a common end-of-frame path. This counts each completed frame as NAPI work whether it was delivered or dropped, matching the behavior of the vendor driver.
How severe is CVE-2026-97981?
Severity scoring for CVE-2026-97981 is pending analysis.
How do I fix CVE-2026-97981?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST