In the Linux kernel, the following vulnerability has been resolved:
net/mlx5: HWS, fix matcher leak on resize target setup failure
hws_bwc_matcher_move() allocates a replacement matcher before setting it as the resize target. If mlx5hws_matcher_resize_set_target() fails, the replacement matcher is not attached anywhere and is leaked.
Fix the leak by destroying the replacement matcher before returning from the resize-target failure path.
The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1.1.
An x86_64 allyesconfig build showed no new warnings. As we do not have a mlx5 HWS-capable device to test with, no runtime testing was able to be performed.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade perf6.12-debuginfoUpgrade kernel6.12-develUpgrade kernel-livepatch-6.12.103-127.188Upgrade kernel6.12-tools-debuginfoUpgrade python3-perf6.12Upgrade kernel6.12-headersUpgrade python3-perf6.12-debuginfoUpgrade kernel6.12-modules-extraUpgrade kernel6.12Upgrade bpftool6.12-debuginfoUpgrade kernel6.12-tools-develUpgrade kernel6.12-debuginfoUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12-toolsUpgrade kernel6.12-modules-extra-commonUpgrade perf6.12Upgrade bpftool6.12Upgrade kernel6.12-debuginfo-common-x86_64 | Sep 1, 2026 | Aug 15, 2026 |
| Debian | — | Upgrade linuxUpgrade linux-6.12 | Aug 16, 2026 | Aug 16, 2026 |
| Redhat_linux | — | No solution exists | Aug 19, 2026 | Aug 15, 2026 |
| Ubuntu | — | Upgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-7.0.0-38-generic-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-azure-fde-lts-26.04Upgrade linux-image-7.0.0-1008-gke-64kUpgrade linux-image-generic-7.0Upgrade linux-image-realtime-64kUpgrade linux-image-7.0.0-1014-aws-64kUpgrade linux-image-7.0.0-1015-oemUpgrade linux-image-generic-hwe-26.04Upgrade linux-image-awsUpgrade linux-image-oem-7.0Upgrade linux-image-gcpUpgrade linux-image-azure-7.0Upgrade linux-image-7.0.0-1014-awsUpgrade linux-image-7.0.0-38-genericUpgrade linux-image-azure-fdeUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-7.0.0-1014-gcpUpgrade linux-image-oracle-64kUpgrade linux-image-oem-26.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-virtualUpgrade linux-image-7.0.0-1008-gkeUpgrade linux-image-realtime-64k-7.0Upgrade linux-image-azureUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-generic-64k-7.0Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-aws-64kUpgrade linux-image-realtimeUpgrade linux-image-gcp-64kUpgrade linux-image-7.0.0-1017-azureUpgrade linux-image-oem-26.04aUpgrade linux-image-azure-lts-26.04Upgrade linux-image-7.0.0-38-realtimeUpgrade linux-image-7.0.0-1014-gcp-64kUpgrade linux-image-oracleUpgrade linux-image-7.0.0-1015-ibmUpgrade linux-image-realtime-7.0Upgrade linux-image-aws-7.0Upgrade linux-image-genericUpgrade linux-image-gke-hwe-26.04Upgrade linux-image-gkeUpgrade linux-image-7.0.0-38-realtime-64kUpgrade linux-image-ibm-7.0Upgrade linux-image-gke-64k-7.0Upgrade linux-image-generic-64kUpgrade linux-image-azure-fde-7.0Upgrade linux-image-7.0.0-1013-oracle-64kUpgrade linux-image-ibmUpgrade linux-image-gcp-7.0Upgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-gke-64kUpgrade linux-image-virtual-7.0Upgrade linux-image-oracle-7.0Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-7.0.0-1013-oracleUpgrade linux-image-gke-7.0Upgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-7.0.0-1016-azure-fdeUpgrade linux-image-aws-64k-7.0 | Oct 7, 2026 | Oct 6, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 25, 2026 | Aug 15, 2026 |
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