In the Linux kernel, the following vulnerability has been resolved:
eventpoll: defer struct eventpoll free to RCU grace period
In certain situations, ep_free() in eventpoll.c will kfree the epi->ep eventpoll struct while it still being used by another concurrent thread. Defer the kfree() to an RCU callback to prevent UAF.
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 |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-64k-modulesUpgrade kernel-cross-headersUpgrade kernel-coreUpgrade rtlaUpgrade kernel-rt-64k-debug-modulesUpgrade libperfUpgrade kernel-64k-debug-modules-extraUpgrade kernel-64k-debugUpgrade kernel-rt-modules-coreUpgrade kernel-64k-modules-coreUpgrade kernel-debug-devel-matchedUpgrade kernel-64k-debug-coreUpgrade kernel-64kUpgrade kernel-rt-64k-debug-modules-extraUpgrade kernel-abi-stablelistsUpgrade kernel-debug-develUpgrade kernel-rt-64k-modules-coreUpgrade kernel-zfcpdump-coreUpgrade kernel-debug-modulesUpgrade kernel-modules-coreUpgrade kernel-rt-modules-extraUpgrade kernel-debug-modules-coreUpgrade kernel-64k-devel-matchedUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-debug-coreUpgrade kernel-rt-64k-debugUpgrade kernel-tools-libs-develUpgrade kernel-devel-matchedUpgrade kernel-debug-modules-extraUpgrade kernel-zfcpdump-develUpgrade kernel-rt-64k-modulesUpgrade kernel-modulesUpgrade kernel-rt-64k-modules-extraUpgrade kernel-rt-debug-develUpgrade kernel-rt-debug-coreUpgrade kernel-debugUpgrade kernel-zfcpdump-modulesUpgrade kernel-headersUpgrade kernel-64k-develUpgrade kernelUpgrade kernel-64k-coreUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-64k-modules-extraUpgrade kernel-develUpgrade kernel-rt-64kUpgrade kernel-rt-debug-modulesUpgrade kernel-rt-develUpgrade kernel-rt-64k-coreUpgrade kernel-rt-64k-debug-modules-coreUpgrade kernel-rt-coreUpgrade kernel-rtUpgrade rvUpgrade kernel-rt-64k-debug-coreUpgrade kernel-rt-debug-modules-extraUpgrade kernel-64k-debug-devel-matchedUpgrade kernel-uki-virt-addonsUpgrade kernel-64k-debug-modules-coreUpgrade kernel-uki-virtUpgrade kernel-modules-extraUpgrade kernel-64k-debug-modulesUpgrade kernel-rt-64k-develUpgrade kernel-toolsUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-docUpgrade kernel-64k-debug-develUpgrade python3-perfUpgrade kernel-debug-uki-virtUpgrade kernel-zfcpdumpUpgrade perfUpgrade kernel-rt-modulesUpgrade kernel-rt-debug-modules-coreUpgrade kernel-tools-libsUpgrade kernel-rt-64k-debug-develUpgrade kernel-rt-debug | Jul 9, 2026 | Jul 8, 2026 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Oracle_linux | — | Upgrade kernel | Oct 22, 2026 | May 6, 2026 |
| Redhat_linux | — | Upgrade kernelUpgrade kernel-rt | Jul 9, 2026 | May 6, 2026 |
| Ubuntu | — | Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-lowlatency-6.8Upgrade linux-image-azure-cvmUpgrade linux-image-generic-6.8Upgrade linux-image-6.8.0-1030-nvidia-tegra-rtUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-azure-lts-24.04Upgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-gke-5.15Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-azure-fipsUpgrade linux-image-lowlatencyUpgrade linux-image-5.15.0-1117-azure-fipsUpgrade linux-image-nvidia-6.8Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-xilinx-6.8Upgrade linux-image-5.15.0-1111-realtimeUpgrade linux-image-gkeop-6.8Upgrade linux-image-5.15.0-1106-ibmUpgrade linux-image-6.8.0-1046-gkeopUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-6.8.0-1061-ibmUpgrade linux-image-gke-64k-6.8Upgrade linux-image-5.15.0-1104-kvmUpgrade linux-image-virtual-6.8Upgrade linux-image-6.8.0-1061-aws-64kUpgrade linux-image-6.8.0-1059-nvidia-lowlatency-64kUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-azure-fdeUpgrade linux-image-raspi-nolpaeUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-kvmUpgrade linux-image-raspi-6.8Upgrade linux-image-aws-fipsUpgrade linux-image-raspiUpgrade linux-image-azureUpgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-1059-nvidia-64kUpgrade linux-image-oracle-6.8Upgrade linux-image-5.15.0-1108-gkeUpgrade linux-image-6.8.0-1064-gcp-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-gcp-5.15Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-oem-22.04bUpgrade linux-image-6.8.0-1061-awsUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-5.15.0-184-lowlatencyUpgrade linux-image-6.8.0-1058-oracleUpgrade linux-image-5.15.0-1064-nvidia-tegra-rtUpgrade linux-image-5.15.0-1107-nvidia-lowlatencyUpgrade linux-image-azure-fde-5.15Upgrade linux-image-5.15.0-1117-azureUpgrade linux-image-5.15.0-186-generic-64kUpgrade linux-image-generic-5.15Upgrade linux-image-aws-64k-6.8Upgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-ibmUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-nvidia-tegra-igxUpgrade linux-image-6.8.0-1058-oracle-64kUpgrade linux-image-aws-lts-22.04Upgrade linux-image-aws-fips-6.8Upgrade linux-image-azure-5.15Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-5.15.0-186-genericUpgrade linux-image-gcp-64kUpgrade linux-image-5.15.0-1104-intel-iot-realtimeUpgrade linux-image-realtime-6.8.1Upgrade linux-image-5.15.0-1112-awsUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-5.15.0-1053-nvidia-tegra-igx-rtUpgrade linux-image-6.8.0-1061-raspiUpgrade linux-image-6.8.0-1062-azure-fdeUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-aws-64k-5.15Upgrade linux-image-aws-fips-5.15Upgrade linux-image-aws-lts-24.04Upgrade linux-image-fipsUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-ibm-6.8Upgrade linux-image-oem-22.04aUpgrade linux-image-ibm-5.15Upgrade linux-image-oracle-5.15Upgrade linux-image-generic-64k-5.15Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-gke-64kUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-gcp-fipsUpgrade linux-image-generic-64k-6.8Upgrade linux-image-6.8.0-1059-gke-64kUpgrade linux-image-awsUpgrade linux-image-aws-6.8Upgrade linux-image-raspi-realtimeUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-nvidia-5.15Upgrade linux-image-6.8.0-136-genericUpgrade linux-image-azure-fips-5.15Upgrade linux-image-kvm-5.15Upgrade linux-image-genericUpgrade linux-image-aws-64kUpgrade linux-image-6.8.0-1030-nvidia-tegraUpgrade linux-image-6.8.0-1033-xilinxUpgrade linux-image-5.15.0-1112-gcpUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-oem-20.04Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-6.8.0-1059-gkeUpgrade linux-image-aws-5.15Upgrade linux-image-6.8.0-136-lowlatencyUpgrade linux-image-6.8.0-136-fipsUpgrade linux-image-6.8.0-1059-nvidia-lowlatencyUpgrade linux-image-5.15.0-184-lowlatency-64kUpgrade linux-image-raspi-5.15Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-intel-iotg-5.15Upgrade linux-image-gkeop-5.15Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-5.15.0-1112-aws-64kUpgrade linux-image-5.15.0-1106-raspiUpgrade linux-image-oracle-64kUpgrade linux-image-5.15.0-1075-xilinx-zynqmpUpgrade linux-image-generic-64kUpgrade linux-image-5.15.0-1117-azure-fdeUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-intelUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-5.15.0-1112-aws-fipsUpgrade linux-image-xilinxUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-generic-lpaeUpgrade linux-image-gcp-6.8Upgrade linux-image-6.8.0-1063-azureUpgrade linux-image-5.15.0-1112-gcp-fipsUpgrade linux-image-5.15.0-1107-nvidiaUpgrade linux-image-virtual-5.15Upgrade linux-image-oem-20.04cUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-nvidia-tegraUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-azure-6.8Upgrade linux-image-gcpUpgrade linux-image-fips-6.8Upgrade linux-image-fips-5.15Upgrade linux-image-oem-22.04dUpgrade linux-image-5.15.0-1107-intel-iotgUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-intel-iotgUpgrade linux-image-lowlatency-5.15Upgrade linux-image-azure-lts-22.04Upgrade linux-image-6.8.0-136-lowlatency-64kUpgrade linux-image-6.8.0-1064-gcpUpgrade linux-image-6.8.0-1061-aws-fipsUpgrade linux-image-6.8.0-1059-nvidiaUpgrade linux-image-5.15.0-1109-oracleUpgrade linux-image-5.15.0-186-fipsUpgrade linux-image-5.15.0-1064-nvidia-tegraUpgrade linux-image-5.15.0-1053-nvidia-tegra-igxUpgrade linux-image-realtimeUpgrade linux-image-oem-22.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-oem-20.04bUpgrade linux-image-gkeUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-gke-6.8Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-laptop-23.10 | May 25, 2026 | May 6, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 22, 2026 | May 6, 2026 |
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