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Change History

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: correctly decode TTLM with default link map

TID-To-Link Mapping (TTLM) elements do not contain any link mapping
presence indicator if a default mapping is used and parsing needs to be
skipped.

Note that access points should not explicitly report an advertised TTLM
with a default mapping as that is the implied mapping if the element is
not included, this is even the case when switching back to the default
mapping. However, mac80211 would incorrectly parse the frame and would
also read one byte beyond the end of the element.

https://git.kernel.org/stable/c/1eab33aa63c993685dd341e03bd5b267dd7403fa

https://git.kernel.org/stable/c/aabc36857bd39da65fe2d047bfaf63a0a09917d4