In the Linux kernel, the following vulnerability has been resolved:
misc: fastrpc: fix use-after-free race in fastrpc_map_create
fastrpc_map_lookup returns a raw pointer after releasing fl->lock. The caller fastrpc_map_create then calls fastrpc_map_get (kref_get_unless_zero) on this unprotected pointer. A concurrent MEM_UNMAP can free the map between the lock release and the kref operation, resulting in a use-after-free on the freed slab object.
Restore the take_ref parameter to fastrpc_map_lookup so the reference is acquired atomically under fl->lock before the pointer is exposed to the caller.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux-6.1Upgrade linux | Jul 5, 2026 | Jul 5, 2026 |
| Ubuntu | — | Upgrade linux-image-kvmUpgrade linux-image-7.0.0-1019-raspiUpgrade linux-image-6.8.0-1036-nvidia-tegraUpgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-aws-lts-24.04Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-realtime-7.0Upgrade linux-image-6.8.0-1066-ibmUpgrade linux-image-realtimeUpgrade linux-image-awsUpgrade linux-image-aws-fipsUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-oem-26.04aUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-nvidia-6.8Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-nvidia-bos-64kUpgrade linux-image-aws-7.0Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-6.8.0-1063-oracle-64kUpgrade linux-image-6.8.0-1036-nvidia-tegra-rtUpgrade linux-image-6.8.0-1069-azure-fipsUpgrade linux-image-oracle-64kUpgrade linux-image-oracleUpgrade linux-image-oracle-6.8Upgrade linux-image-oem-7.0Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-gke-hwe-26.04Upgrade linux-image-raspi-7.0Upgrade linux-image-nvidia-bosUpgrade linux-image-gke-7.0Upgrade linux-image-raspiUpgrade linux-image-generic-hwe-26.04Upgrade linux-image-6.8.0-1064-nvidiaUpgrade linux-image-7.0.0-1012-awsUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-aws-64kUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-6.8.0-1064-nvidia-lowlatency-64kUpgrade linux-image-aws-fips-6.8Upgrade linux-image-6.8.1-1061-realtimeUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-realtime-64k-7.0Upgrade linux-image-realtime-64kUpgrade linux-image-7.0.0-1014-azureUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-gkeUpgrade linux-image-gke-64k-7.0Upgrade linux-image-gke-64k-6.8Upgrade linux-image-6.8.0-146-lowlatencyUpgrade linux-image-6.8.0-146-lowlatency-64kUpgrade linux-image-6.8.0-146-generic-64kUpgrade linux-image-7.0.0-1012-aws-64kUpgrade linux-image-6.8.0-1066-aws-fipsUpgrade linux-image-6.8.0-1051-gkeopUpgrade linux-image-gcp-6.8Upgrade linux-image-laptop-23.10Upgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-lowlatency-6.8Upgrade linux-image-generic-7.0Upgrade linux-image-realtime-6.8.1Upgrade linux-image-azure-7.0Upgrade linux-image-azure-fde-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-7.0.0-2018-nvidia-bosUpgrade linux-image-7.0.0-31-generic-64kUpgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-7.0.0-1018-nvidia-64kUpgrade linux-image-6.8.0-1066-aws-64kUpgrade linux-image-virtual-6.8Upgrade linux-image-6.8.0-1065-gkeUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-6.8.0-146-fipsUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-7.0.0-1019-raspi-realtimeUpgrade linux-image-azureUpgrade linux-image-azure-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-gke-6.8Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-nvidia-64k-7.0Upgrade linux-image-lowlatencyUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-oem-26.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-intel-iotgUpgrade linux-image-gkeop-6.8Upgrade linux-image-7.0.0-31-genericUpgrade linux-image-7.0.0-2018-nvidia-bos-64kUpgrade linux-image-7.0.0-1013-oemUpgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-7.0.0-1006-gke-64kUpgrade linux-image-6.8.0-1065-gke-64kUpgrade linux-image-generic-6.8Upgrade linux-image-nvidiaUpgrade linux-image-ibm-classicUpgrade linux-image-generic-lpaeUpgrade linux-image-ibm-7.0Upgrade linux-image-7.0.0-31-realtimeUpgrade linux-image-6.8.0-1066-awsUpgrade linux-image-fips-6.8Upgrade linux-image-azure-fipsUpgrade linux-image-6.8.0-1064-nvidia-lowlatencyUpgrade linux-image-6.8.0-1064-nvidia-64kUpgrade linux-image-generic-64kUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-gcp-7.0Upgrade linux-image-virtual-7.0Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-ibmUpgrade linux-image-generic-64k-7.0Upgrade linux-image-aws-64k-6.8Upgrade linux-image-7.0.0-1006-gkeUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-nvidia-tegraUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-genericUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-ibm-6.8Upgrade linux-image-generic-64k-6.8Upgrade linux-image-gcp-fipsUpgrade linux-image-7.0.0-31-realtime-64kUpgrade linux-image-7.0.0-1018-nvidiaUpgrade linux-image-6.8.0-146-genericUpgrade linux-image-6.8.0-1063-oracleUpgrade linux-image-fipsUpgrade linux-image-azure-lts-24.04Upgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-aws-6.8Upgrade linux-image-6.8.0-1070-gcp-64kUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-nvidia-7.0Upgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-gkeopUpgrade linux-image-gke-64kUpgrade linux-image-gcpUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-aws-64k-7.0Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-azure-lts-26.04Upgrade linux-image-azure-fips-6.8Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-nvidia-bos-7.0Upgrade linux-image-7.0.0-1013-ibmUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-6.8.0-1070-gcp-fipsUpgrade linux-image-6.8.0-1070-gcpUpgrade linux-image-6.8.0-1070-azureUpgrade linux-image-6.8.0-1068-azure-fdeUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-virtualUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-raspi-realtimeUpgrade linux-image-oracle-7.0Upgrade linux-image-oem-26.04bUpgrade linux-image-azure-fde | Sep 14, 2026 | Sep 7, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 6, 2026 | Jun 25, 2026 |
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