CVE-2024-38553

net: fec: remove .ndo_poll_controller to avoid deadlocks

State: Published
Severity: Not scored
Published: Jun 19, 2024
Updated: May 11, 2026
Reserved: Jun 18, 2024

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	7f5c6addcdc039c1a7c435857e6284ecac5d97c8 to before e2348d8c61d03feece1de4c05f72e6e99f74c650Affected 7f5c6addcdc039c1a7c435857e6284ecac5d97c8 to before d38625f71950e79e254515c5fc585552dad4b33eAffected 7f5c6addcdc039c1a7c435857e6284ecac5d97c8 to before accdd6b912c4219b8e056d1f1ad2e85bc66ee243Affected 7f5c6addcdc039c1a7c435857e6284ecac5d97c8 to before 87bcbc9b7e0b43a69d44efa5f32f11e32d08fa6fAffected 7f5c6addcdc039c1a7c435857e6284ecac5d97c8 to before c2e0c58b25a0a0c37ec643255558c5af4450c9f5Affected
LinuxLinux	3.2Affected before 3.2Not affected 6.1.119 through 6.1.Not affected 6.6.33 through 6.6.Not affected 6.8.12 through 6.8.Not affected 6.9.3 through 6.9.Not affected 6.10 and laterNot affected

Product

Versions

LinuxLinux

7f5c6addcdc039c1a7c435857e6284ecac5d97c8 to before e2348d8c61d03feece1de4c05f72e6e99f74c650Affected
7f5c6addcdc039c1a7c435857e6284ecac5d97c8 to before d38625f71950e79e254515c5fc585552dad4b33eAffected
7f5c6addcdc039c1a7c435857e6284ecac5d97c8 to before accdd6b912c4219b8e056d1f1ad2e85bc66ee243Affected
7f5c6addcdc039c1a7c435857e6284ecac5d97c8 to before 87bcbc9b7e0b43a69d44efa5f32f11e32d08fa6fAffected
7f5c6addcdc039c1a7c435857e6284ecac5d97c8 to before c2e0c58b25a0a0c37ec643255558c5af4450c9f5Affected

LinuxLinux

3.2Affected
before 3.2Not affected
6.1.119 through 6.1.*Not affected
6.6.33 through 6.6.*Not affected
6.8.12 through 6.8.*Not affected
6.9.3 through 6.9.*Not affected
6.10 and laterNot affected

References

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