CVE-2024-47738 is a low-severity vulnerability in the Linux kernel's mac80211 wireless subsystem. It addresses improper use of the rate mask for offchannel transmissions, which could cause incorrect behavior or warnings during wireless operations. The issue was identified and fixed by ignoring incorrect rate mask settings for offchannel transmissions, similar to a prior fix for scanning transmissions. This prevents no supported rate warnings and improves stability in wireless rate handling.