In the Linux kernel, the following vulnerability has been resolved:
mm/huge_memory: update file PMD counter before folio_put()
__split_huge_pmd_locked() updates the file/shmem RSS counter after dropping the PMD mapping's folio reference. If folio_put() drops the last reference, mm_counter_file() can later read freed folio state via folio_test_swapbacked().
Move the counter update before folio_put().
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfoUpgrade python-perf-debuginfoUpgrade kernel-tools-develUpgrade kernel-livepatch-5.15.210-148.245Upgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-headersUpgrade kernel-tools-debuginfoUpgrade kernel-livepatch-5.10.259-258.1043Upgrade kernel-develUpgrade perfUpgrade python-perfUpgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64Upgrade bpftoolUpgrade bpftool-debuginfoUpgrade perf-debuginfo | Jul 8, 2026 | Jul 8, 2026 |
| Amazon_linux_2023 | — | Upgrade perf6.12Upgrade python3-perf6.18Upgrade kernel-debuginfo-common-x86_64Upgrade python3-perf-debuginfoUpgrade kernel-toolsUpgrade kernel-debuginfoUpgrade kernel6.18-tools-debuginfoUpgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel-modules-extraUpgrade kernel6.12-modules-extra-commonUpgrade bpftool-debuginfoUpgrade kernel6.18Upgrade kernel6.18-debuginfo-common-aarch64Upgrade kernel6.12-develUpgrade kernelUpgrade python3-perf6.18-debuginfoUpgrade perf6.18Upgrade kernel6.12-headersUpgrade kernel-livepatch-6.18.36-69.134Upgrade bpftool6.18Upgrade kernel-tools-debuginfoUpgrade kernel6.12Upgrade kernel6.18-modules-extra-commonUpgrade bpftoolUpgrade python3-perf6.12-debuginfoUpgrade kernel-headersUpgrade kernel6.18-toolsUpgrade kernel6.12-debuginfo-common-aarch64Upgrade microvm-kernel6.18Upgrade kernel6.18-tools-develUpgrade perf6.12-debuginfoUpgrade perfUpgrade kernel6.18-debuginfoUpgrade kernel6.12-modules-extraUpgrade kernel-debuginfo-common-aarch64Upgrade perf6.18-debuginfoUpgrade kernel6.18-headersUpgrade python3-perfUpgrade kernel-modules-extra-commonUpgrade bpftool6.18-debuginfoUpgrade bpftool6.12-debuginfoUpgrade python3-perf6.12Upgrade perf-debuginfoUpgrade kernel6.18-modules-extraUpgrade kernel6.18-develUpgrade kernel6.12-tools-develUpgrade kernel6.12-toolsUpgrade kernel-livepatch-6.12.94-123.174Upgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel-develUpgrade bpftool6.12Upgrade kernel-tools-develUpgrade kernel-livepatch-6.1.176-220.358Upgrade kernel6.12-debuginfoUpgrade kernel6.12-tools-debuginfo | Jul 8, 2026 | Jun 25, 2026 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Jul 5, 2026 | Jul 5, 2026 |
| Redhat_linux | — | No solution existsUpgrade kernel-rtUpgrade kernel | Jul 17, 2026 | Jun 25, 2026 |
| Rocky_linux | — | Upgrade libperf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-rt-debug-develUpgrade kernel-rt-modulesUpgrade kernel-rt-debug-modules-extraUpgrade kernel-zfcpdump-coreUpgrade kernel-toolsUpgrade kernel-rt-debuginfo-common-x86_64Upgrade kernel-debug-modules-coreUpgrade kernel-devel-matchedUpgrade perfUpgrade kernel-rt-debug-modules-coreUpgrade kernel-uki-virtUpgrade kernel-debug-coreUpgrade kernel-uki-virt-addonsUpgrade libperfUpgrade kernel-rt-debuginfoUpgrade kernel-rt-modules-coreUpgrade kernel-develUpgrade kernel-debug-debuginfoUpgrade kernel-rtUpgrade kernel-modules-extraUpgrade rvUpgrade kernel-zfcpdump-devel-matchedUpgrade perf-debuginfoUpgrade kernel-rt-develUpgrade kernel-debuginfo-common-s390xUpgrade kernel-debug-modules-extraUpgrade kernel-modulesUpgrade kernel-coreUpgrade kernel-rt-debug-modulesUpgrade kernel-zfcpdump-modulesUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-rt-kvmUpgrade kernel-zfcpdumpUpgrade kernel-rt-debugUpgrade kernel-tools-libsUpgrade rtlaUpgrade kernel-debug-uki-virtUpgrade kernel-tools-libs-develUpgrade kernel-rt-coreUpgrade kernel-debuginfoUpgrade bpftoolUpgrade kernel-rt-modules-extraUpgrade kernelUpgrade kernel-modules-extra-matchedUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-rt-debug-kvmUpgrade kernel-rt-debug-debuginfoUpgrade kernel-zfcpdump-debuginfoUpgrade kernel-debug-develUpgrade kernel-zfcpdump-develUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-modules-coreUpgrade kernel-debug-devel-matchedUpgrade kernel-debugUpgrade kernel-rt-debug-coreUpgrade kernel-debug-modulesUpgrade python3-perfUpgrade python3-perf-debuginfo | Aug 24, 2026 | Aug 21, 2026 |
| Ubuntu | — | Upgrade linux-image-ibmUpgrade linux-image-realtime-7.0Upgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-7.0.0-31-realtimeUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-generic-hwe-26.04Upgrade linux-image-7.0.0-1018-nvidiaUpgrade linux-image-nvidia-7.0Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-raspiUpgrade linux-image-7.0.0-2018-nvidia-bos-64kUpgrade linux-image-azureUpgrade linux-image-ibm-7.0Upgrade linux-image-genericUpgrade linux-image-oem-26.04Upgrade linux-image-7.0.0-1012-awsUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-gke-7.0Upgrade linux-image-7.0.0-31-realtime-64kUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-gke-64kUpgrade linux-image-aws-7.0Upgrade linux-image-generic-64kUpgrade linux-image-nvidia-bosUpgrade linux-image-nvidiaUpgrade linux-image-7.0.0-1018-nvidia-64kUpgrade linux-image-gcp-64kUpgrade linux-image-oem-26.04aUpgrade linux-image-7.0.0-2018-nvidia-bosUpgrade linux-image-gke-64k-7.0Upgrade linux-image-nvidia-bos-64kUpgrade linux-image-aws-64k-7.0Upgrade linux-image-oracle-7.0Upgrade linux-image-7.0.0-1012-aws-64kUpgrade linux-image-oem-7.0Upgrade linux-image-nvidia-64k-7.0Upgrade linux-image-7.0.0-1014-azureUpgrade linux-image-gcpUpgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-virtual-7.0Upgrade linux-image-realtime-64kUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-nvidia-bos-7.0Upgrade linux-image-generic-7.0Upgrade linux-image-7.0.0-1006-gkeUpgrade linux-image-awsUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-raspi-realtimeUpgrade linux-image-gke-hwe-26.04Upgrade linux-image-7.0.0-31-genericUpgrade linux-image-gkeUpgrade linux-image-7.0.0-1013-ibmUpgrade linux-image-7.0.0-1013-oemUpgrade linux-image-7.0.0-31-generic-64kUpgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-oracle-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-oracleUpgrade linux-image-generic-64k-7.0Upgrade linux-image-7.0.0-1019-raspiUpgrade linux-image-realtimeUpgrade linux-image-aws-64kUpgrade linux-image-virtualUpgrade linux-image-nvidia-64kUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-raspi-7.0Upgrade linux-image-oem-26.04bUpgrade linux-image-realtime-64k-7.0Upgrade linux-image-7.0.0-1006-gke-64kUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-gcp-7.0Upgrade linux-image-azure-lts-26.04Upgrade linux-image-azure-7.0Upgrade linux-image-7.0.0-1019-raspi-realtimeUpgrade linux-image-realtime-hwe-26.04 | 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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