CVE-2026-23246 PUBLISHED

wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration

Assigner: Linux
Reserved: 13.01.2026 Published: 18.03.2026 Updated: 18.03.2026

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

wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration

link_id is taken from the ML Reconfiguration element (control & 0x000f), so it can be 0..15. link_removal_timeout[] has IEEE80211_MLD_MAX_NUM_LINKS (15) elements, so index 15 is out-of-bounds. Skip subelements with link_id >= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds write.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c to bfde158d5d1322c0c2df398a8d1ccce04943be2e (excl.)
  • affected from 8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c to f35ceec54d48e227fa46f8f97fd100a77b8eab15 (excl.)
  • affected from 8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c to d58d71c2167601762351962b9604808d3be94400 (excl.)
  • affected from 8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c to 162d331d833dc73a3e905a24c44dd33732af1fc5 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.5 is affected
  • unaffected from 0 to 6.5 (excl.)
  • unaffected from 6.12.77 to 6.12.* (incl.)
  • unaffected from 6.18.17 to 6.18.* (incl.)
  • unaffected from 6.19.7 to 6.19.* (incl.)
  • unaffected from 7.0-rc2 to * (incl.)

References