CVE-2026-97981

net: ethernet: cortina: Count dropped frames as NAPI work

N/A
Published: September 25, 2026 at 10:23 AM UTC
Updated: October 19, 2026 at 10:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vendor states this is fixed in 27b5753077d1cfda5fe201d2ba602de76a9a09b1 (fixed)
Vendor states this is fixed in 5754e0c0758805096ecfeaf4c1b146ad51ed246f (fixed)
Vendor states this is fixed in 58140f1cebb776d174dc6ff41c15401654a5b1ea (fixed)
Vendor states this is fixed in 620b7184808b25cf58268856f892b9ba83c181fd (fixed)
Vendor states this is fixed in 9620e2ce9b5998ebbf157241f296f8ddb92285c2 (fixed)
Vendor states this is fixed in b856c552f556bc0341c1dbe0bf88e630fd1dc4b7 (fixed)
Vendor states this is fixed in cceb6cd7f0e5ed2944a9ca22443d7b9da82f60ab (fixed)
Vendor states this is fixed in e858b9b1ea3cbbc353189d07dec40dc16967e290 (fixed)
Vendor states this is fixed in 4.16 (unaffected)
Vendor states this is fixed in 5.10.271 (unaffected)
Vendor states this is fixed in 5.15.222 (unaffected)
Vendor states this is fixed in 6.1.189 (unaffected)
Vendor states this is fixed in 6.12.111 (unaffected)
Vendor states this is fixed in 6.18.53 (unaffected)
Vendor states this is fixed in 6.6.158 (unaffected)
Vendor states this is fixed in 7.2.7 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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