CVE-2024-38553
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…
Does this matter?
Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.19% probability · 9th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/87bcbc9b7e0b43a69d44efa5f32f11e32d08fa6fPatch
- https://git.kernel.org/stable/c/accdd6b912c4219b8e056d1f1ad2e85bc66ee243Patch
- https://git.kernel.org/stable/c/c2e0c58b25a0a0c37ec643255558c5af4450c9f5Patch
- https://git.kernel.org/stable/c/d38625f71950e79e254515c5fc585552dad4b33ePatch
- https://git.kernel.org/stable/c/e2348d8c61d03feece1de4c05f72e6e99f74c650
- https://git.kernel.org/stable/c/87bcbc9b7e0b43a69d44efa5f32f11e32d08fa6fPatch
- https://git.kernel.org/stable/c/accdd6b912c4219b8e056d1f1ad2e85bc66ee243Patch
- https://git.kernel.org/stable/c/c2e0c58b25a0a0c37ec643255558c5af4450c9f5Patch
- https://git.kernel.org/stable/c/d38625f71950e79e254515c5fc585552dad4b33ePatch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.