CVE-2026-97432

Summary

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 Software

Weaknesses

References

• https://git.kernel.org/stable/c/7be2fc679c8f657868988e41c0bb15bf5a454620
• https://git.kernel.org/stable/c/b74e377cad9271950c57472867c469e4b5b2ff0c

• ←Previous
• Next→