Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix P2P-Device binding handling Our binding handling for P2P-Device can run into the following scenario, as observed by our testing: - a station interface is connected on some channel - the P2P-Device does a remain-on-channel (ROC) on that channel - the ROC ends, and the P2P-Device is removed from the binding, but the phy_ctxt pointer is left around as a PHY cache so we don't need to recalibrate to the channel again and again in case it's not shared - a binding update by the station interface, even a removal, will re-add the P2P-Device to the binding - the P2P-Device is removed, which removes the PHY context, but it's still in the binding so the firmware crashes Since the P2P device is removed from the binding and only re- added by unrelated code, but we want to keep the phy_ctxt around as a cache for future ROC usage, fix it by adding a boolean that indicates whether or not the P2P-Device should be added to the binding, and handle that in the binding iterator. That way, the station interface cannot re-add the P2P-Device to the binding when that isn't active.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 64c277f6329818db3124c9759cb9acf0f6070a54 before 50bf37362362c8f03ab1aeab866b7fb08b262204; affected 84ef7cbe90e9e54c71c1da4e645ba34e1b33da77 before 8575514a979490c9d4517fcf19b4e19119c27702; affected 84ef7cbe90e9e54c71c1da4e645ba34e1b33da77 before 7be2fc679c8f657868988e41c0bb15bf5a454620; affected 84ef7cbe90e9e54c71c1da4e645ba34e1b33da77 before b74e377cad9271950c57472867c469e4b5b2ff0c; affected 8ddf2212cfa5d9ef4fd289ce0d9dda728f2160b8; affected 6.6.2 before 6.6.160; affected 6.5.12 before 6.6 |
| Linux / Linux | affected 6.7; unaffected 0 before 6.7; unaffected 6.6.160 through 6.6.*; unaffected 6.12.114 through 6.12.*; unaffected 6.18.53 through 6.18.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.