CVE-2026-23152

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux702e80470a3359ce02b3f846f48f6db4ac7fd837 < aabc36857bd39da65fe2d047bfaf63a0a09917d4affected
LinuxLinux702e80470a3359ce02b3f846f48f6db4ac7fd837 < 1eab33aa63c993685dd341e03bd5b267dd7403faaffected
LinuxLinux6.7affected
LinuxLinux0 < 6.7unaffected
LinuxLinux6.18.9 <= 6.18.*unaffected
LinuxLinux6.19 <= *unaffected

Weaknesses

References