Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: mlme: fix null-ptr deref on failed assoc If association to an AP without a link 0 fails, then we crash in tracing because it assumes that either ap_mld_addr or link 0 BSS is valid, since we clear sdata->vif.valid_links and then don't add the ap_mld_addr to the struct. Since we clear also sdata->vif.cfg.ap_addr, keep a local copy of it and assign it earlier, before clearing valid_links, to fix this.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 81151ce462e533551f3284bfdb8e0f461c9220e6 before c695dfba8dfb82dc7ace4f22be088916cbf621ca; affected 81151ce462e533551f3284bfdb8e0f461c9220e6 before bb7743955a929e44b308cc3f63f8cc03873c1bee; affected 81151ce462e533551f3284bfdb8e0f461c9220e6 before 78a6a43aaf87180ec7425a2a90468e1b4d09a1ec |
| Linux / Linux | affected 6.0; unaffected 0 before 6.0; unaffected 6.0.16 through 6.0.*; unaffected 6.1.2 through 6.1.*; unaffected 6.2 through * |
CWE
No CWE identifiers supplied.