CVE-2021-47388

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A use-after-free issue has been resolved in the Linux kernel, specifically in the mac80211 module. The issue occurred when PN checking was done for fragmentation, and the hdr variable was used without being necessarily valid, potentially leading to use-after-free if parts of the frame needed to be reallocated. The fix involves reloading the variable after the code that results in reallocations, if any.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.