In the Linux kernel, the following vulnerability has been resolved:
wifi: wlcore: enable the right set of ciphers
The firmware version number check for IGTK introduced in commit c34dbc5900b0 ("wifi: wlcore: Add support for IGTK key")
lets the amount of ciphers decrease on every boot of a too old firmware and that is practically happening. It also does not take into account other chips than the wl18xx. On some wl128x, the following can be observed when connecting via nm to a common ap:
[ 484.113311] wlcore: WARNING could not set keys [ 484.117828] wlcore: ERROR Could not add or replace key [ 484.123016] wlan0: failed to set key (5, ff:ff:ff:ff:ff:ff) to hardware (-5) [ 484.123046] wlcore: Hardware recovery in progress. FW ver: Rev 7.3.10.0.142 [ 484.139923] wlcore: pc: 0x0, hint_sts: 0x00000048 count: 1 [ 484.145721] wlcore: down [ 484.148986] ieee80211 phy0: Hardware restart was requested [ 484.610473] wlcore: firmware booted (Rev 7.3.10.0.142) [ 484.633758] wlcore: Association completed. [ 484.690490] wlcore: ERROR command execute failure 14 [ 484.690490] ------------[ cut here ]------------ [ 484.700195] WARNING: drivers/net/wireless/ti/wlcore/main.c:872 at wl12xx_queue_recovery_work+0x64/0x74 [wlcore], CPU#0: kworker/0:0/892
This repeats endlessly. Always disable IGTK on wl12xx and fix the decrementing mess.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Redhat_linux | — | No solution exists | Sep 2, 2026 | Aug 28, 2026 |
| Ubuntu | — | Upgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-7.0.0-38-realtimeUpgrade linux-image-7.0.0-1015-ibmUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-gcpUpgrade linux-image-7.0.0-1013-oracleUpgrade linux-image-ibmUpgrade linux-image-awsUpgrade linux-image-azure-lts-26.04Upgrade linux-image-realtime-64k-7.0Upgrade linux-image-oracle-7.0Upgrade linux-image-virtual-hwe-26.04Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-azure-fde-lts-26.04Upgrade linux-image-realtimeUpgrade linux-image-aws-64kUpgrade linux-image-7.0.0-1016-azure-fdeUpgrade linux-image-oracleUpgrade linux-image-virtual-7.0Upgrade linux-image-7.0.0-1014-aws-64kUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-gcp-7.0Upgrade linux-image-gkeUpgrade linux-image-7.0.0-1013-oracle-64kUpgrade linux-image-azure-fde-7.0Upgrade linux-image-virtualUpgrade linux-image-gke-hwe-26.04Upgrade linux-image-7.0.0-38-genericUpgrade linux-image-genericUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-7.0.0-1017-azureUpgrade linux-image-gke-64k-7.0Upgrade linux-image-7.0.0-38-realtime-64kUpgrade linux-image-7.0.0-38-generic-64kUpgrade linux-image-7.0.0-1014-gcp-64kUpgrade linux-image-realtime-7.0Upgrade linux-image-generic-hwe-26.04Upgrade linux-image-generic-64kUpgrade linux-image-oracle-64kUpgrade linux-image-generic-64k-7.0Upgrade linux-image-azureUpgrade linux-image-gke-7.0Upgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-7.0.0-1008-gke-64kUpgrade linux-image-gcp-64kUpgrade linux-image-realtime-64kUpgrade linux-image-7.0.0-1015-oemUpgrade linux-image-7.0.0-1014-gcpUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-gke-64kUpgrade linux-image-azure-7.0Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-generic-7.0Upgrade linux-image-oem-26.04Upgrade linux-image-aws-64k-7.0Upgrade linux-image-oem-7.0Upgrade linux-image-azure-fdeUpgrade linux-image-ibm-7.0Upgrade linux-image-aws-7.0Upgrade linux-image-7.0.0-1014-awsUpgrade linux-image-7.0.0-1008-gkeUpgrade linux-image-oem-26.04aUpgrade linux-image-gcp-64k-7.0 | Oct 7, 2026 | Oct 6, 2026 |
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