CVE-2026-97982

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 < d3deb54d9507c2d7f05efd896142095eef5b7d85affected
LinuxLinux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 < e6e5732b90d0fc25fd3d9961ff61e660297d7608affected
LinuxLinux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 < aa339ac334d4e51f43af9d2901e6faf11ffd981eaffected
LinuxLinux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 < 4ca84049c6428c665ef7c903a32a99ed0f1e01e9affected
LinuxLinux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 < 631c47e2e1154f2741c555b91df1b8cb99294c6aaffected
LinuxLinux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 < 0ef8eaef5806c84db2334111d6f299c246a592bcaffected
LinuxLinux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 < 94e06e12a376710587cfeea481b65e7c49747003affected
LinuxLinux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 < a0de06d0da78a3db53de65dfd7452cc6d111f703affected
LinuxLinux4.16affected
LinuxLinux0 < 4.16unaffected
LinuxLinux5.10.271 <= 5.10.*unaffected
LinuxLinux5.15.222 <= 5.15.*unaffected
LinuxLinux6.1.189 <= 6.1.*unaffected
LinuxLinux6.6.158 <= 6.6.*unaffected
LinuxLinux6.12.111 <= 6.12.*unaffected
LinuxLinux6.18.53 <= 6.18.*unaffected
LinuxLinux7.2.7 <= 7.2.*unaffected
LinuxLinux7.3-rc3 <= *unaffected

Weaknesses

References