In the Linux kernel, the following vulnerability has been resolved:
mm/damon/core: disallow non-power of two min_region_sz on damon_start()
Commit d8f867fa0825 ("mm/damon: add damon_ctx->min_sz_region") introduced a bug that allows unaligned DAMON region address ranges. Commit c80f46ac228b ("mm/damon/core: disallow non-power of two min_region_sz") fixed it, but only for damon_commit_ctx() use case. Still, DAMON sysfs interface can emit non-power of two min_region_sz via damon_start(). Fix the path by adding the is_power_of_2() check on damon_start().
The issue was discovered by sashiko [1].
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade bpftool6.18-debuginfoUpgrade kernel6.18-modules-extraUpgrade perf6.18-debuginfoUpgrade kernel6.18-debuginfoUpgrade kernel6.18-toolsUpgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel6.18-headersUpgrade python3-perf6.18-debuginfoUpgrade kernel6.18-debuginfo-common-aarch64Upgrade perf6.18Upgrade bpftool6.18Upgrade kernel6.18Upgrade kernel6.18-tools-debuginfoUpgrade kernel6.18-modules-extra-commonUpgrade kernel-livepatch-6.18.30-61.116Upgrade kernel6.18-tools-develUpgrade python3-perf6.18Upgrade kernel6.18-devel | Jul 10, 2026 | Jun 9, 2026 |
| Ubuntu | — | Upgrade linux-image-realtimeUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-generic-hwe-26.04Upgrade linux-image-7.0.0-1014-raspi-realtimeUpgrade linux-image-7.0.0-1007-oracleUpgrade linux-image-oem-24.04Upgrade linux-image-virtualUpgrade linux-image-nvidiaUpgrade linux-image-7.0.0-1008-aws-64kUpgrade linux-image-7.0.0-1010-azureUpgrade linux-image-generic-64k-7.0Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-azure-fde-7.0Upgrade linux-image-oem-24.04bUpgrade linux-image-realtime-64kUpgrade linux-image-7.0.0-1013-nvidia-64kUpgrade linux-image-7.0.0-27-genericUpgrade linux-image-oem-24.04cUpgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-generic-64kUpgrade linux-image-virtual-7.0Upgrade linux-image-oem-7.0Upgrade linux-image-oem-24.04dUpgrade linux-image-raspi-realtimeUpgrade linux-image-oracleUpgrade linux-image-oem-24.04aUpgrade linux-image-ibm-7.0Upgrade linux-image-nvidia-64kUpgrade linux-image-genericUpgrade linux-image-7.0.0-1008-awsUpgrade linux-image-aws-64kUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-azure-7.0Upgrade linux-image-gcpUpgrade linux-image-realtime-64k-7.0Upgrade linux-image-oracle-64kUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-7.0.0-27-realtimeUpgrade linux-image-7.0.0-1007-gcpUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-oem-26.04Upgrade linux-image-7.0.0-27-generic-64kUpgrade linux-image-7.0.0-28-genericUpgrade linux-image-7.0.0-1014-raspiUpgrade linux-image-aws-64k-7.0Upgrade linux-image-realtime-7.0Upgrade linux-image-raspiUpgrade linux-image-gcp-7.0Upgrade linux-image-ibmUpgrade linux-image-nvidia-7.0Upgrade linux-image-aws-7.0Upgrade linux-image-7.0.0-1013-nvidiaUpgrade linux-image-7.0.0-27-realtime-64kUpgrade linux-image-7.0.0-1007-gcp-64kUpgrade linux-image-azureUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-gcp-64kUpgrade linux-image-gcp-64k-7.0Upgrade linux-image-7.0.0-28-generic-64kUpgrade linux-image-7.0.0-1007-oracle-64kUpgrade linux-image-generic-7.0Upgrade linux-image-raspi-7.0Upgrade linux-image-nvidia-64k-7.0Upgrade linux-image-7.0.0-1008-oemUpgrade linux-image-azure-fdeUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-oracle-7.0Upgrade linux-image-oem-26.04aUpgrade linux-image-7.0.0-1009-ibmUpgrade linux-image-aws | Jul 1, 2026 | Jun 9, 2026 |
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