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In the Linux kernel, the following vulnerability has been resolved:
wifi: ath11k: fix NULL pointer dereference in ath11k_hal_srng_access_begin
In ATH11K_QMI_EVENT_FW_READY, ATH11K_FLAG_REGISTERED is set unconditionally even when ath11k_core_qmi_firmware_ready() fails. This leaves the driver in an inconsistent state where initialization is considered complete although the firmware ready handling did not finish successfully. During the subsequent SSR, the driver enters the restart path based on this incorrect state and dereferences uninitialized srng members, resulting in a NULL pointer dereference.
Call trace: ath11k_hal_srng_access_begin+0xc/0x60 [ath11k] (P) ath11k_ce_cleanup_pipes+0x17c/0x180 [ath11k] ath11k_core_restart+0x40/0x168 [ath11k]
Fix this by: - skipping firmware_ready if ATH11K_FLAG_REGISTERED is already set - setting ATH11K_FLAG_REGISTERED only when firmware_ready succeeds - setting ATH11K_FLAG_QMI_FAIL and aborting the FW_READY handling on error
Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.2.0.c2-00204-QCAMSLSWPLZ-1
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux-6.12Upgrade linux | Aug 11, 2026 | Aug 11, 2026 |
| Redhat_linux | — | No solution exists | Aug 17, 2026 | Aug 10, 2026 |
| Ubuntu | — | Upgrade linux-image-realtimeUpgrade linux-image-gke-6.8Upgrade linux-image-6.8.0-147-fipsUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-virtual-6.8Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-gke-64k-7.0Upgrade linux-image-6.8.0-147-lowlatencyUpgrade linux-image-laptop-23.10Upgrade linux-image-lowlatency-6.8Upgrade linux-image-6.8.0-1069-azure-fdeUpgrade linux-image-6.8.0-147-generic-64kUpgrade linux-image-7.0.0-1013-oracle-64kUpgrade linux-image-realtime-7.0Upgrade linux-image-6.8.0-1071-gcp-fipsUpgrade linux-image-azureUpgrade linux-image-6.8.0-1064-oracleUpgrade linux-image-generic-hwe-26.04Upgrade linux-image-aws-fips-6.8Upgrade linux-image-gke-64k-6.8Upgrade linux-image-azure-6.8Upgrade linux-image-7.0.0-38-realtime-64kUpgrade linux-image-7.0.0-1014-gcpUpgrade linux-image-realtime-64kUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-oem-26.04aUpgrade linux-image-gcp-6.8Upgrade linux-image-6.8.0-1071-azure-fipsUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-oracle-6.8Upgrade linux-image-awsUpgrade linux-image-gke-7.0Upgrade linux-image-intel-iotgUpgrade linux-image-oem-7.0Upgrade linux-image-aws-7.0Upgrade linux-image-gke-hwe-26.04Upgrade linux-image-6.8.0-147-genericUpgrade linux-image-gkeUpgrade linux-image-6.8.0-147-lowlatency-64kUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-generic-7.0Upgrade linux-image-realtime-64k-7.0Upgrade linux-image-gcp-fipsUpgrade linux-image-oracleUpgrade linux-image-realtime-6.8.1Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-aws-64k-7.0Upgrade linux-image-7.0.0-38-realtimeUpgrade linux-image-aws-64kUpgrade linux-image-gke-64kUpgrade linux-image-gcp-64kUpgrade linux-image-aws-fipsUpgrade linux-image-6.8.0-1071-gcpUpgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-6.8.0-1067-aws-fipsUpgrade linux-image-aws-lts-24.04Upgrade linux-image-azure-fde-6.8Upgrade linux-image-kvmUpgrade linux-image-ibm-6.8Upgrade linux-image-generic-64k-6.8Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-realtime-hwe-26.04Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-generic-lpaeUpgrade linux-image-7.0.0-1016-azure-fdeUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-aws-64k-6.8Upgrade linux-image-7.0.0-1014-awsUpgrade linux-image-7.0.0-1008-gkeUpgrade linux-image-6.8.0-1052-gkeopUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-oem-26.04Upgrade linux-image-7.0.0-1015-oemUpgrade linux-image-7.0.0-38-genericUpgrade linux-image-generic-64kUpgrade linux-image-generic-6.8Upgrade linux-image-azure-lts-26.04Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-6.8.0-1066-gkeUpgrade linux-image-7.0.0-1014-gcp-64kUpgrade linux-image-7.0.0-1014-aws-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-aws-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-gcp-7.0Upgrade linux-image-6.8.1-1062-realtimeUpgrade linux-image-6.8.0-1067-ibmUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-oracle-7.0Upgrade linux-image-gkeop-6.8Upgrade linux-image-gkeopUpgrade linux-image-6.8.0-1066-gke-64kUpgrade linux-image-lowlatency-64kUpgrade linux-image-ibm-classicUpgrade linux-image-azure-fde-lts-26.04Upgrade linux-image-azure-fde-7.0Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-7.0.0-1013-oracleUpgrade linux-image-7.0.0-1008-gke-64kUpgrade linux-image-azure-lts-24.04Upgrade linux-image-7.0.0-1017-azureUpgrade linux-image-virtual-7.0Upgrade linux-image-generic-64k-7.0Upgrade linux-image-6.8.0-1064-oracle-64kUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-fips-6.8Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-fipsUpgrade linux-image-azure-7.0Upgrade linux-image-7.0.0-38-generic-64kUpgrade linux-image-7.0.0-1015-ibmUpgrade linux-image-6.8.0-1071-gcp-64kUpgrade linux-image-6.8.0-1067-awsUpgrade linux-image-oracle-64kUpgrade linux-image-ibmUpgrade linux-image-6.8.0-1067-aws-64kUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-virtualUpgrade linux-image-genericUpgrade linux-image-gcpUpgrade linux-image-azure-fips-6.8Upgrade linux-image-azure-fipsUpgrade linux-image-azure-fdeUpgrade linux-image-6.8.0-1071-azureUpgrade linux-image-ibm-7.0 | Oct 7, 2026 | Oct 6, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 17, 2026 | Aug 10, 2026 |
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