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CVE-2025-38094

In the Linux kernel, the following vulnerability has been resolved: net: cadence: macb: Fix a possible deadlock in macb_halt_tx.

Impact

In the Linux kernel, the following vulnerability has been resolved: net: cadence: macb: Fix a possible deadlock in macb_halt_tx. There is a situation where after THALT is set high, TGO stays high as well. Because jiffies are never updated, as we are in a context with interrupts disabled, we never exit that loop and have a deadlock. That deadlock was noticed on a sama5d4 device that stayed locked for days. Use retries instead of jiffies so that the timeout really works and we do not have a deadlock anymore.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 3.8 before 5.10.238
from 5.11 before 5.15.184
from 5.16 before 6.1.140
from 6.2 before 6.6.92
from 6.7 before 6.12.30
from 6.13 before 6.14.8
DebianDebian Linux
Version 11.0

Weakness classification

CWE-667

References