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Red Hat: CVE-2024-26779: kernel: wifi: mac80211: fix race condition on enabling fast-xmit (Multiple Advisories)

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Red Hat: CVE-2024-26779: kernel: wifi: mac80211: fix race condition on enabling fast-xmit (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
04/03/2024
Created
06/07/2024
Added
06/06/2024
Modified
06/06/2024

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix race condition on enabling fast-xmit fast-xmit must only be enabled after the sta has been uploaded to the driver, otherwise it could end up passing the not-yet-uploaded sta via drv_tx calls to the driver, leading to potential crashes because of uninitialized drv_priv data. Add a missing sta->uploaded check and re-check fast xmit after inserting a sta.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2024-26779
  • RHSA-2024:3618
  • RHSA-2024:3627

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