In the Linux kernel, the following vulnerability has been resolved:
tap: fix stack info leak in tap_ioctl() SIOCGIFHWADDR
In the SIOCGIFHWADDR path, tap_ioctl() copies 16 bytes of an uninitialised on-stack struct sockaddr_storage to userspace via ifr_hwaddr, but netif_get_mac_address() only writes sa_family and dev->addr_len (6 for Ethernet) bytes, leaving sa_data[6..13] uninitialised.
Those 8 trailing bytes leak kernel stack contents; SIOCGIFHWADDR on a macvtap chardev returns kernel .text and direct-map pointers, defeating KASLR.
Initialise ss at declaration.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade python3-perf6.18-debuginfoUpgrade bpftool6.18Upgrade kernel6.18-modules-extra-commonUpgrade kernel6.18-modules-extraUpgrade microvm-kernel6.18Upgrade kernel-livepatch-6.18.35-68.127Upgrade perf6.18Upgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel6.18-develUpgrade kernel6.18-tools-debuginfoUpgrade python3-perf6.18Upgrade kernel6.18-tools-develUpgrade kernel6.18-headersUpgrade kernel6.18-debuginfoUpgrade kernel6.18-toolsUpgrade kernel6.18Upgrade kernel6.18-debuginfo-common-aarch64Upgrade bpftool6.18-debuginfoUpgrade perf6.18-debuginfo | Jul 8, 2026 | Jun 24, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Jun 24, 2026 |
| Ubuntu | — | Upgrade linux-image-raspi-realtime-7.0Upgrade linux-image-virtual-7.0Upgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-generic-64k-7.0Upgrade linux-image-ibm-7.0Upgrade linux-image-oem-24.04Upgrade linux-image-virtualUpgrade linux-image-aws-7.0Upgrade linux-image-7.0.0-1008-oracle-64kUpgrade linux-image-7.0.0-1009-aws-64kUpgrade linux-image-7.0.0-28-genericUpgrade linux-image-7.0.0-28-realtime-64kUpgrade linux-image-7.0.0-1010-ibmUpgrade linux-image-realtime-7.0Upgrade linux-image-genericUpgrade linux-image-ibmUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-gkeUpgrade linux-image-azure-fde-7.0Upgrade linux-image-gke-64kUpgrade linux-image-gcp-7.0Upgrade linux-image-7.0.0-1009-oemUpgrade linux-image-7.0.0-28-generic-64kUpgrade linux-image-nvidiaUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-nvidia-7.0Upgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-nvidia-bos-7.0Upgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-generic-64kUpgrade linux-image-7.0.0-1010-azureUpgrade linux-image-nvidia-64k-7.0Upgrade linux-image-7.0.0-1009-awsUpgrade linux-image-7.0.0-1015-raspi-realtimeUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-oem-24.04bUpgrade linux-image-7.0.0-1008-gcpUpgrade linux-image-7.0.0-2016-nvidia-bos-64kUpgrade linux-image-oracle-7.0Upgrade linux-image-aws-64kUpgrade linux-image-aws-64k-7.0Upgrade linux-image-7.0.0-2016-nvidia-bosUpgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-oem-26.04Upgrade linux-image-gke-64k-7.0Upgrade linux-image-nvidia-bos-64kUpgrade linux-image-realtime-64kUpgrade linux-image-oracleUpgrade linux-image-oem-24.04aUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-generic-7.0Upgrade linux-image-gcpUpgrade linux-image-7.0.0-1016-nvidia-64kUpgrade linux-image-gke-hwe-26.04Upgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-7.0.0-1008-gcp-64kUpgrade linux-image-raspi-realtimeUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-7.0.0-28-realtimeUpgrade linux-image-7.0.0-1016-nvidiaUpgrade linux-image-raspi-7.0Upgrade linux-image-nvidia-64kUpgrade linux-image-gke-7.0Upgrade linux-image-awsUpgrade linux-image-realtimeUpgrade linux-image-oem-26.04aUpgrade linux-image-7.0.0-1015-raspiUpgrade linux-image-gcp-64k-7.0Upgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-7.0.0-1003-gke-64kUpgrade linux-image-realtime-64k-7.0Upgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-generic-hwe-26.04Upgrade linux-image-7.0.0-1014-azureUpgrade linux-image-oracle-64kUpgrade linux-image-7.0.0-1003-gkeUpgrade linux-image-oem-7.0Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-oem-24.04dUpgrade linux-image-azure-fdeUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-azure-7.0Upgrade linux-image-azureUpgrade linux-image-raspiUpgrade linux-image-oem-24.04cUpgrade linux-image-7.0.0-1008-oracleUpgrade linux-image-gcp-64kUpgrade linux-image-nvidia-bos | Jul 20, 2026 | Jun 24, 2026 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub