Advisory Published

CVE-2024-26779: wifi: mac80211: fix race condition on enabling fast-xmit

First published: Wed Apr 03 2024(Updated: )

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.

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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