CVE-2025-38094 Information

Jul 04, 2025 cve

Description

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.

Reference

https://git.kernel.org/stable/c/0772a608d799ac0d127c0a36047a2725777aba9d https://git.kernel.org/stable/c/1d60c0781c1bbeaa1196b0d8aad5c435f06cb7c4 https://git.kernel.org/stable/c/3e64d35475aa21d13dab71da51de51923c1a3a48 https://git.kernel.org/stable/c/64675a9c00443b2e8af42af08c38fc1b78b68ba2 https://git.kernel.org/stable/c/84f98955a9de0e0f591df85aa1a44f3ebcf1cb37 https://git.kernel.org/stable/c/aace6b63892ce8307e502a60fe2f5a4bc6e1cfe7 https://git.kernel.org/stable/c/c92d6089d8ad7d4d815ebcedee3f3907b539ff1f

CNNVD-202507-180 (Published: 2025-07-03)

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