CVE-2024-38553

CVSS v3 Score
5.5
Medium

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: net: fec: remove .ndo_poll_controller to avoid deadlocks There is a deadlock issue found in sungem driver, please refer to the commit ac0a230f719b ("eth: sungem: remove .ndo_poll_controller to avoid deadlocks"). The root cause of the issue is that netpoll is in atomic context and disable_irq() is called by .ndo_poll_controller interface of sungem driver, however, disable_irq() might sleep. After analyzing the implementation of fec_poll_controller(), the fec driver should have the same issue. Due to the fec driver uses NAPI for TX completions, the .ndo_poll_controller is unnecessary to be implemented in the fec driver, so fec_poll_controller() can be safely removed.

CVSS:5.5(Medium)

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CVSS:5.5(Medium)

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CVSS:5.5(Medium)

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CVSS:5.5(Medium)

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CVSS:5.5(Medium)

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CVSS:5.5(Medium)

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