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In the Linux kernel, the following vulnerability has been resolved:
epoll: be better about file lifetimes
epoll can call out to vfs_poll() with a file pointer that may race with the last 'fput()'. That would make f_count go down to zero, and while the ep->mtx locking means that the resulting file pointer tear-down will be blocked until the poll returns, it means that f_count is already dead, and any use of it won't actually get a reference to the file any more: it's dead regardless.
Make sure we have a valid ref on the file pointer before we call down to vfs_poll() from the epoll routines.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-modules-extraUpgrade rtlaUpgrade kernel-rt-modulesUpgrade kernel-modulesUpgrade kernel-zfcpdumpUpgrade kernel-rt-debugUpgrade kernel-rt-debug-modules-extraUpgrade kernel-modules-coreUpgrade kernel-uki-virtUpgrade kernel-zfcpdump-develUpgrade kernel-docUpgrade kernel-64k-debug-develUpgrade kernel-64k-debug-modulesUpgrade kernel-headersUpgrade kernel-coreUpgrade kernel-rt-coreUpgrade kernel-debug-uki-virtUpgrade kernel-debug-modulesUpgrade kernel-debug-develUpgrade kernel-rt-debug-modules-coreUpgrade kernel-rt-debug-develUpgrade kernel-rt-debug-modulesUpgrade kernel-debugUpgrade kernel-debug-coreUpgrade kernel-develUpgrade kernel-64k-modules-coreUpgrade kernel-rt-develUpgrade kernel-debug-modules-coreUpgrade kernel-64k-develUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-tools-libsUpgrade libperfUpgrade kernel-64k-modules-extraUpgrade python3-perfUpgrade kernel-tools-libs-develUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-rt-modules-extraUpgrade kernel-64k-debug-coreUpgrade kernel-rtUpgrade kernel-abi-stablelistsUpgrade kernel-64kUpgrade kernel-64k-coreUpgrade kernel-64k-debug-modules-extraUpgrade kernel-rt-modules-coreUpgrade kernel-devel-matchedUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-64k-devel-matchedUpgrade kernel-zfcpdump-coreUpgrade kernel-zfcpdump-modulesUpgrade kernelUpgrade kernel-64k-debug-devel-matchedUpgrade kernel-toolsUpgrade kernel-debug-modules-extraUpgrade kernel-cross-headersUpgrade kernel-64k-debugUpgrade kernel-rt-debug-coreUpgrade rvUpgrade kernel-64k-debug-modules-coreUpgrade bpftoolUpgrade kernel-debug-devel-matchedUpgrade perfUpgrade kernel-64k-modules | Nov 4, 2024 | Jun 19, 2024 |
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-debuginfoUpgrade kernel-tools-develUpgrade perfUpgrade python-perfUpgrade kernel-toolsUpgrade kernel-develUpgrade perf-debuginfoUpgrade kernel-headersUpgrade kernel-livepatch-5.15.161-106.159Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade kernelUpgrade bpftool-debuginfoUpgrade python-perf-debuginfoUpgrade bpftool | May 22, 2025 | Jun 19, 2024 |
| Amazon_linux_2023 | — | Upgrade python3-perf-debuginfoUpgrade kernel-tools-develUpgrade kernel-develUpgrade perfUpgrade kernel-debuginfoUpgrade python3-perfUpgrade kernel-modules-extraUpgrade kernel-tools-debuginfoUpgrade bpftoolUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-libbpfUpgrade kernel-livepatch-6.1.94-99.176Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-libbpf-develUpgrade kernel-toolsUpgrade kernel-headersUpgrade bpftool-debuginfoUpgrade kernelUpgrade kernel-libbpf-staticUpgrade perf-debuginfoUpgrade kernel-modules-extra-common | Jun 11, 2025 | Jun 19, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Jun 19, 2024 |
| Oracle_linux | — | Upgrade kernel | Aug 16, 2024 | Jun 19, 2024 |
| Redhat_linux | — | Upgrade kernel-rtNo solution existsUpgrade kernel | Dec 5, 2024 | Jun 19, 2024 |
| Rocky_linux | — | Upgrade kernel-rt-debug-debuginfoUpgrade kernel-rtUpgrade rvUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-rt-debugUpgrade kernel-tools-libs-develUpgrade kernel-cross-headersUpgrade kernel-rt-kvmUpgrade kernel-rt-develUpgrade bpftoolUpgrade libperf-debuginfoUpgrade kernel-zfcpdump-debuginfoUpgrade kernel-rt-modules-coreUpgrade perfUpgrade kernel-rt-modulesUpgrade kernel-zfcpdump-coreUpgrade kernel-toolsUpgrade python3-perf-debuginfoUpgrade kernel-zfcpdump-modulesUpgrade kernel-tools-libsUpgrade kernel-rt-modules-extraUpgrade kernel-debug-modules-extraUpgrade kernel-develUpgrade kernel-rt-debuginfoUpgrade kernel-rt-debug-modules-coreUpgrade kernel-rt-debug-coreUpgrade kernel-debug-modulesUpgrade kernel-zfcpdump-devel-matchedUpgrade bpftool-debuginfoUpgrade kernel-debug-develUpgrade kernel-headersUpgrade kernel-debuginfoUpgrade kernel-debug-modules-coreUpgrade kernel-debug-devel-matchedUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-rt-debug-modules-extraUpgrade kernel-debug-uki-virtUpgrade kernel-debugUpgrade kernel-rt-debug-develUpgrade kernel-zfcpdumpUpgrade kernel-debug-coreUpgrade kernelUpgrade libperfUpgrade kernel-rt-coreUpgrade kernel-coreUpgrade kernel-rt-debug-kvmUpgrade kernel-modules-coreUpgrade kernel-debug-debuginfoUpgrade kernel-uki-virtUpgrade kernel-zfcpdump-develUpgrade kernel-devel-matchedUpgrade rtlaUpgrade python3-perfUpgrade perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-modules-extraUpgrade kernel-modulesUpgrade kernel-rt-debug-modules | Aug 1, 2024 | Jun 19, 2024 |
| Suse | — | Upgrade kernel-default-optionalUpgrade kernel-source-vanillaUpgrade dlm-kmp-64kbUpgrade kernel-source-azureUpgrade reiserfs-kmp-azureUpgrade dtb-amlogicUpgrade kernel-rt-vdsoUpgrade kernel-kvmsmallUpgrade dtb-nvidiaUpgrade dtb-caviumUpgrade kernel-obs-qaUpgrade kernel-default-base-rebuildUpgrade kernel-default-extraUpgrade kernel-debug-livepatch-develUpgrade kernel-rtUpgrade dtb-mediatekUpgrade gfs2-kmp-rtUpgrade cluster-md-kmp-defaultUpgrade kernel-azureUpgrade kernel-macrosUpgrade kernel-devel-azureUpgrade kernel-kvmsmall-develUpgrade cluster-md-kmp-rtUpgrade kernel-syms-azureUpgrade cluster-md-kmp-azureUpgrade dtb-lgUpgrade kselftests-kmp-64kbUpgrade dtb-rockchipUpgrade kernel-rt-develUpgrade kernel-debug-vdsoUpgrade dtb-qcomUpgrade kernel-azure-livepatch-develUpgrade dtb-alteraUpgrade kernel-default-vdsoUpgrade dtb-armUpgrade dtb-exynosUpgrade kernel-obs-buildUpgrade kernel-devel-rtUpgrade gfs2-kmp-azureUpgrade dtb-xilinxUpgrade kernel-azure-optionalUpgrade kernel-rt-extraUpgrade dtb-apmUpgrade kernel-azure-develUpgrade kernel-rt-livepatchUpgrade kernel-sourceUpgrade kernel-default-livepatchUpgrade dtb-appleUpgrade kselftests-kmp-azureUpgrade reiserfs-kmp-rtUpgrade kernel-kvmsmall-livepatch-develUpgrade dtb-renesasUpgrade kernel-azure-extraUpgrade kernel-64kb-optionalUpgrade kernel-default-baseUpgrade kernel-default-develUpgrade kernel-azure-vdsoUpgrade kernel-64kbUpgrade kernel-source-rtUpgrade dtb-freescaleUpgrade gfs2-kmp-64kbUpgrade kernel-debug-develUpgrade kernel-symsUpgrade cluster-md-kmp-64kbUpgrade dtb-broadcomUpgrade kernel-zfcpdumpUpgrade kselftests-kmp-defaultUpgrade ocfs2-kmp-64kbUpgrade reiserfs-kmp-defaultUpgrade kernel-rt-optionalUpgrade kernel-default-manUpgrade kernel-rt-livepatch-develUpgrade gfs2-kmp-defaultUpgrade dtb-hisiliconUpgrade dtb-allwinnerUpgrade dtb-amazonUpgrade kernel-defaultUpgrade kernel-rt_debug-vdsoUpgrade kernel-64kb-extraUpgrade dtb-socionextUpgrade ocfs2-kmp-rtUpgrade kernel-syms-rtUpgrade kernel-develUpgrade dlm-kmp-azureUpgrade kernel-docsUpgrade kernel-rt_debug-develUpgrade kernel-rt_debugUpgrade kernel-kvmsmall-vdsoUpgrade kernel-default-livepatch-develUpgrade kernel-64kb-develUpgrade dtb-sprdUpgrade dtb-amdUpgrade dlm-kmp-rtUpgrade dtb-marvellUpgrade kselftests-kmp-rtUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-debugUpgrade kernel-azure-baseUpgrade ocfs2-kmp-azureUpgrade kernel-docs-htmlUpgrade kernel-64kb-livepatch-develUpgrade dlm-kmp-defaultUpgrade reiserfs-kmp-64kbUpgrade ocfs2-kmp-default | Jul 10, 2024 | Jun 19, 2024 |
| Ubuntu | — | Upgrade linux-image-6.8.0-40-generic-64kUpgrade linux-image-oracleUpgrade linux-image-gcpUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-5.15.0-121-generic-lpaeUpgrade linux-image-5.15.0-1064-nvidia-lowlatencyUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-5.15.0-1064-nvidiaUpgrade linux-image-5.15.0-1067-oracleUpgrade linux-image-raspi-nolpaeUpgrade linux-image-5.15.0-1072-azure-fdeUpgrade linux-image-azure-fdeUpgrade linux-image-oem-24.04aUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-5.15.0-1052-gkeopUpgrade linux-image-6.8.0-1008-gkeUpgrade linux-image-6.8.0-1010-oracleUpgrade linux-image-awsUpgrade linux-image-aws-lts-22.04Upgrade linux-image-6.8.0-1012-gcpUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-raspiUpgrade linux-image-oem-20.04dUpgrade linux-image-6.8.0-1010-oemUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1011-nvidia-lowlatencyUpgrade linux-image-6.8.0-40-genericUpgrade linux-image-azure-cvmUpgrade linux-image-ibm-classicUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-6.8.0-1011-nvidia-64kUpgrade linux-image-5.15.0-1066-gkeUpgrade linux-image-6.8.0-1011-nvidiaUpgrade linux-image-kvmUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-nvidia-64kUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-1010-oracle-64kUpgrade linux-image-5.15.0-1064-intel-iotgUpgrade linux-image-oracle-64kUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-gkeopUpgrade linux-image-nvidia-6.8Upgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.0-40-lowlatency-64kUpgrade linux-image-gkeUpgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-6.8.0-1012-azure-fdeUpgrade linux-image-5.15.0-1035-xilinx-zynqmpUpgrade linux-image-6.8.0-1011-nvidia-lowlatency-64kUpgrade linux-image-generic-64kUpgrade linux-image-6.8.0-1010-ibmUpgrade linux-image-oem-20.04cUpgrade linux-image-ibmUpgrade linux-image-oem-20.04bUpgrade linux-image-6.8.0-1012-azureUpgrade linux-image-6.8.0-1013-awsUpgrade linux-image-6.8.0-40-lowlatencyUpgrade linux-image-5.15.0-1069-awsUpgrade linux-image-nvidiaUpgrade linux-image-lowlatencyUpgrade linux-image-virtualUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-5.15.0-1062-raspiUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-gke-5.15Upgrade linux-image-6.8.0-1009-raspiUpgrade linux-image-azureUpgrade linux-image-oem-20.04Upgrade linux-image-intelUpgrade linux-image-5.15.0-1068-gcpUpgrade linux-image-generic-lpaeUpgrade linux-image-5.15.0-1062-ibmUpgrade linux-image-5.15.0-121-generic-64kUpgrade linux-image-5.15.0-121-lowlatencyUpgrade linux-image-oem-24.04Upgrade linux-image-5.15.0-121-lowlatency-64kUpgrade linux-image-intel-iotgUpgrade linux-image-gkeop-5.15Upgrade linux-image-5.15.0-121-genericUpgrade linux-image-azure-lts-22.04Upgrade linux-image-5.15.0-1066-kvmUpgrade linux-image-genericUpgrade linux-image-5.15.0-1072-azure | Aug 9, 2024 | Jun 19, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 9, 2025 | Jun 19, 2024 |
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