net: mvpp2: guard flow control update with global_tx_fc in buffer switching

Scope

What the vendor says is affected

• cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0

Timeline

When this advisory changed

1. Apr 25, 2026 at 1:05 AM UTC
   Published by Microsoft Security Response Center

   The publication date reported by the vendor.

2. Sep 27, 2026 at 11:11 PM UTC
   Added to SecurityAlert

   We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-23438View CVSS, KEV, EPSS, and threat context