In the Linux kernel, the following vulnerability has been resolved:
mm/damon/lru_sort: avoid divide-by-zero in damon_lru_sort_apply_parameters()
Patch series "mm/damon: avoid divide-by-zero in DAMON module's parameters application".
DAMON's RECLAIM and LRU_SORT modules perform no validation on user-configured parameters during application, which may lead to division-by-zero errors.
Avoid the divide-by-zero by adding validation checks when DAMON modules attempt to apply the parameters.
This patch (of 2):
During the calculation of 'hot_thres' and 'cold_thres', either 'sample_interval' or 'aggr_interval' is used as the divisor, which may lead to division-by-zero errors. Fix it by directly returning -EINVAL when such a case occurs. Additionally, since 'aggr_interval' is already required to be set no smaller than 'sample_interval' in damon_set_attrs(), only the case where 'sample_interval' is zero needs to be checked.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel-libbpf-debuginfoUpgrade kernel-toolsUpgrade python3-perf-debuginfoUpgrade bpftoolUpgrade bpftool-debuginfoUpgrade kernel-libbpf-staticUpgrade kernel-headersUpgrade kernel-modules-extraUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-livepatch-6.1.155-176.282Upgrade kernel-libbpf-develUpgrade kernel-develUpgrade perfUpgrade kernel-libbpfUpgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade kernelUpgrade kernel-modules-extra-commonUpgrade python3-perfUpgrade kernel-debuginfoUpgrade kernel-tools-develUpgrade kernel-tools-debuginfo | Oct 16, 2025 | Oct 1, 2025 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Oct 2, 2025 | Oct 2, 2025 |
| Suse | — | Upgrade kernel-kvmsmallUpgrade kernel-rt-vdsoUpgrade ocfs2-kmp-rtUpgrade kernel-rt-livepatch-develUpgrade dtb-exynosUpgrade dtb-marvellUpgrade kernel-default-vdsoUpgrade kernel-rt-optionalUpgrade gfs2-kmp-64kbUpgrade kernel-zfcpdumpUpgrade kselftests-kmp-defaultUpgrade kernel-kvmsmall-develUpgrade dtb-broadcomUpgrade kernel-default-develUpgrade kselftests-kmp-64kbUpgrade ocfs2-kmp-64kbUpgrade cluster-md-kmp-defaultUpgrade kernel-macrosUpgrade dtb-apmUpgrade dtb-armUpgrade dtb-freescaleUpgrade dtb-amlogicUpgrade dtb-rockchipUpgrade kernel-obs-buildUpgrade dtb-lgUpgrade gfs2-kmp-rtUpgrade kernel-rtUpgrade dlm-kmp-64kbUpgrade kernel-sourceUpgrade dtb-amazonUpgrade kernel-docs-htmlUpgrade kernel-obs-qaUpgrade dtb-qcomUpgrade kernel-default-extraUpgrade kernel-kvmsmall-vdsoUpgrade kernel-64kbUpgrade dtb-mediatekUpgrade dtb-allwinnerUpgrade kernel-defaultUpgrade dtb-caviumUpgrade cluster-md-kmp-64kbUpgrade kernel-symsUpgrade kernel-default-optionalUpgrade dtb-amdUpgrade ocfs2-kmp-defaultUpgrade dlm-kmp-defaultUpgrade dtb-sprdUpgrade kernel-docsUpgrade dtb-appleUpgrade kernel-rt-livepatchUpgrade kernel-develUpgrade kernel-64kb-optionalUpgrade kernel-64kb-extraUpgrade kernel-64kb-develUpgrade dtb-renesasUpgrade kernel-source-vanillaUpgrade kernel-default-livepatchUpgrade kernel-default-livepatch-develUpgrade kernel-rt-extraUpgrade dtb-alteraUpgrade kernel-rt-develUpgrade dtb-xilinxUpgrade dtb-socionextUpgrade dtb-hisiliconUpgrade cluster-md-kmp-rtUpgrade gfs2-kmp-defaultUpgrade dlm-kmp-rtUpgrade dtb-nvidiaUpgrade kselftests-kmp-rt | Dec 5, 2025 | Nov 6, 2025 |
| Ubuntu | — | Upgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-virtualUpgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-6.8.0-1050-awsUpgrade linux-image-gkeopUpgrade linux-image-generic-6.8Upgrade linux-image-xilinxUpgrade linux-image-ibm-classicUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-ibmUpgrade linux-image-generic-64kUpgrade linux-image-lowlatency-64kUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-gkeop-6.8Upgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-azure-fips-6.8Upgrade linux-image-gcpUpgrade linux-image-lowlatencyUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-oem-22.04bUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-azure-fipsUpgrade linux-image-fipsUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-generic-lpaeUpgrade linux-image-6.8.0-1051-azureUpgrade linux-image-fips-6.8Upgrade linux-image-aws-64k-6.8Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-oracle-64kUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-genericUpgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-6.8.0-106-genericUpgrade linux-image-raspi-realtimeUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-generic-64k-6.8Upgrade linux-image-azure-lts-24.04Upgrade linux-image-oem-22.04Upgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-ibm-6.8Upgrade linux-image-nvidiaUpgrade linux-image-aws-6.8Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-realtime-6.8.1Upgrade linux-image-gke-64kUpgrade linux-image-gke-6.8Upgrade linux-image-awsUpgrade linux-image-virtual-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-oem-22.04dUpgrade linux-image-oracle-6.8Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-6.8.0-106-fipsUpgrade linux-image-raspiUpgrade linux-image-lowlatency-6.8Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-aws-64kUpgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-azureUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-gcp-6.8Upgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-aws-fips-6.8Upgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-gke-64k-6.8Upgrade linux-image-gkeUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-realtimeUpgrade linux-image-aws-lts-24.04Upgrade linux-image-kvmUpgrade linux-image-oracleUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-gcp-fipsUpgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-aws-fipsUpgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-raspi-6.8Upgrade linux-image-xilinx-6.8Upgrade linux-image-intel-iotgUpgrade linux-image-azure-6.8Upgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-nvidia-6.8Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oem-22.04cUpgrade linux-image-nvidia-64kUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-6.8.0-1049-nvidia-lowlatency-64k | Mar 17, 2026 | Oct 1, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 13, 2025 | Oct 1, 2025 |
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