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CVE-2026-97982

net: ethernet: cortina: Fix budget accounting

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, and 2 more
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Fix budget accounting The gmac_rx() function returns the remaining NAPI budget, but its caller treats the return value as the number of packets received. An idle poll therefore reports a full budget and remains scheduled. Return the number of received packets instead. Preserve the existing free queue refill accounting by adding that count directly; continuing to subtract it from the budget would invert the refill behavior.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 · fixed in d3deb54d9507c2d7f05efd896142095eef5b7d85; From 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 · fixed in e6e5732b90d0fc25fd3d9961ff61e660297d7608; From 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 · fixed in aa339ac334d4e51f43af9d2901e6faf11ffd981e; From 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 · fixed in 4ca84049c6428c665ef7c903a32a99ed0f1e01e9; From 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 · fixed in 631c47e2e1154f2741c555b91df1b8cb99294c6a; From 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 · fixed in 0ef8eaef5806c84db2334111d6f299c246a592bc; From 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 · fixed in 94e06e12a376710587cfeea481b65e7c49747003; From 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 · fixed in a0de06d0da78a3db53de65dfd7452cc6d111f703

  • Linux Linux

    4.16

  • KernelLinux

    From 4.16.0 · fixed in 5.10.271; From 5.11.0 · fixed in 5.15.222; From 5.16.0 · fixed in 6.1.189; From 6.2.0 · fixed in 6.6.158; From 6.7.0 · fixed in 6.12.111; From 6.13.0 · fixed in 6.18.53; From 6.19.0 · fixed in 7.2.7

References 8

git.kernel.org