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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-docUpgrade kernel-modules-coreUpgrade kernel-debug-uki-virtUpgrade kernel-develUpgrade kernel-rt-debug-modulesUpgrade kernel-debug-modulesUpgrade kernel-modulesUpgrade kernel-rt-debugUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-rt-debug-modules-coreUpgrade kernel-rt-develUpgrade kernel-rt-coreUpgrade kernel-uki-virtUpgrade kernel-zfcpdumpUpgrade kernel-debug-coreUpgrade kernel-debugUpgrade kernel-modules-extraUpgrade kernel-64k-debug-develUpgrade kernel-coreUpgrade kernel-rt-debug-develUpgrade kernel-rt-debug-modules-extraUpgrade kernel-headersUpgrade kernel-64k-develUpgrade kernel-rt-modulesUpgrade rtlaUpgrade kernel-tools-libsUpgrade kernel-zfcpdump-develUpgrade kernel-64k-debug-modulesUpgrade kernel-debug-modules-coreUpgrade kernel-64k-modules-coreUpgrade kernel-debug-develUpgrade bpftoolUpgrade kernel-devel-matchedUpgrade kernel-rt-modules-coreUpgrade kernel-zfcpdump-modulesUpgrade kernel-64k-devel-matchedUpgrade kernel-debug-devel-matchedUpgrade kernel-64k-debug-modules-coreUpgrade kernel-rtUpgrade kernel-64k-debug-devel-matchedUpgrade kernel-64k-debug-modules-extraUpgrade kernel-64k-debug-coreUpgrade perfUpgrade kernel-64k-modules-extraUpgrade rvUpgrade kernel-zfcpdump-coreUpgrade libperfUpgrade kernel-64k-coreUpgrade kernel-64kUpgrade kernel-tools-libs-develUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-64k-debugUpgrade kernel-abi-stablelistsUpgrade kernel-debug-modules-extraUpgrade kernelUpgrade kernel-cross-headersUpgrade python3-perfUpgrade kernel-rt-modules-extraUpgrade kernel-64k-modulesUpgrade kernel-rt-debug-coreUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-tools | Nov 4, 2024 | Jun 19, 2024 |
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfoUpgrade python-perf-debuginfoUpgrade kernel-livepatch-5.15.161-106.159Upgrade bpftool-debuginfoUpgrade kernelUpgrade bpftoolUpgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-toolsUpgrade python-perfUpgrade kernel-tools-debuginfoUpgrade perf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade perfUpgrade kernel-tools-develUpgrade kernel-devel | May 22, 2025 | Jun 19, 2024 |
| Amazon_linux_2023 | — | Upgrade perf-debuginfoUpgrade kernelUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernel-libbpf-develUpgrade kernel-modules-extra-commonUpgrade kernel-toolsUpgrade kernel-libbpf-staticUpgrade kernel-develUpgrade perfUpgrade kernel-libbpfUpgrade python3-perf-debuginfoUpgrade python3-perfUpgrade kernel-debuginfoUpgrade kernel-modules-extraUpgrade kernel-tools-debuginfoUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-6.1.94-99.176Upgrade bpftool | 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 | — | No solution existsUpgrade kernelUpgrade kernel-rt | Dec 5, 2024 | Jun 19, 2024 |
| Rocky_linux | — | Upgrade kernel-debug-develUpgrade kernel-rt-debug-develUpgrade kernel-rt-debug-modulesUpgrade bpftool-debuginfoUpgrade kernel-modules-extraUpgrade kernel-modulesUpgrade libperfUpgrade kernelUpgrade kernel-uki-virtUpgrade kernel-zfcpdump-develUpgrade python3-perf-debuginfoUpgrade kernel-cross-headersUpgrade kernel-rt-modules-coreUpgrade kernel-tools-libsUpgrade libperf-debuginfoUpgrade kernel-rt-kvmUpgrade kernel-zfcpdump-modulesUpgrade kernel-rt-debuginfoUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-rt-modulesUpgrade kernel-toolsUpgrade kernel-zfcpdump-coreUpgrade perfUpgrade bpftoolUpgrade kernel-develUpgrade kernel-rt-debug-modules-coreUpgrade kernel-debug-modules-extraUpgrade rvUpgrade kernel-tools-libs-develUpgrade kernel-rt-develUpgrade kernel-rt-modules-extraUpgrade kernel-rt-debugUpgrade kernel-rtUpgrade kernel-rt-debug-debuginfoUpgrade kernel-debug-modulesUpgrade kernel-rt-debug-coreUpgrade kernel-zfcpdump-debuginfoUpgrade kernel-debug-debuginfoUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-debug-devel-matchedUpgrade kernel-debuginfoUpgrade kernel-debug-modules-coreUpgrade kernel-rt-debug-modules-extraUpgrade kernel-modules-coreUpgrade kernel-rt-debug-kvmUpgrade kernel-tools-debuginfoUpgrade kernel-zfcpdumpUpgrade kernel-core | Aug 1, 2024 | Jun 19, 2024 |
| Suse | — | Upgrade kernel-develUpgrade gfs2-kmp-defaultUpgrade reiserfs-kmp-rtUpgrade reiserfs-kmp-64kbUpgrade kernel-docs-htmlUpgrade kselftests-kmp-azureUpgrade dlm-kmp-defaultUpgrade kernel-64kb-livepatch-develUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-64kb-develUpgrade dtb-sprdUpgrade kernel-rt_debug-develUpgrade kernel-rt_debugUpgrade kernel-default-livepatch-develUpgrade dlm-kmp-rtUpgrade kernel-kvmsmall-vdsoUpgrade kernel-docsUpgrade cluster-md-kmp-64kbUpgrade kselftests-kmp-rtUpgrade dtb-amdUpgrade dtb-broadcomUpgrade gfs2-kmp-64kbUpgrade dtb-marvellUpgrade kernel-debug-develUpgrade kernel-debugUpgrade dtb-allwinnerUpgrade kernel-zfcpdumpUpgrade kernel-symsUpgrade kernel-64kb-optionalUpgrade kernel-default-baseUpgrade dtb-freescaleUpgrade kernel-source-rtUpgrade dtb-renesasUpgrade kernel-azure-extraUpgrade kernel-default-livepatchUpgrade kernel-rt-livepatch-develUpgrade kernel-rt-optionalUpgrade kernel-default-manUpgrade kselftests-kmp-defaultUpgrade kernel-rt_debug-vdsoUpgrade kernel-syms-rtUpgrade dtb-hisiliconUpgrade ocfs2-kmp-64kbUpgrade kernel-rt_debug-livepatch-develUpgrade dlm-kmp-azureUpgrade kernel-azure-baseUpgrade dtb-socionextUpgrade kernel-azure-vdsoUpgrade dtb-appleUpgrade kernel-64kb-extraUpgrade reiserfs-kmp-defaultUpgrade ocfs2-kmp-azureUpgrade kernel-default-develUpgrade ocfs2-kmp-defaultUpgrade kernel-defaultUpgrade dtb-amazonUpgrade ocfs2-kmp-rtUpgrade kernel-64kbUpgrade kernel-default-extraUpgrade dtb-amlogicUpgrade kernel-source-azureUpgrade gfs2-kmp-rtUpgrade dtb-mediatekUpgrade kernel-default-base-rebuildUpgrade kernel-debug-livepatch-develUpgrade dlm-kmp-64kbUpgrade kernel-azure-optionalUpgrade dtb-apmUpgrade reiserfs-kmp-azureUpgrade kernel-source-vanillaUpgrade kernel-obs-qaUpgrade kernel-rt-extraUpgrade kernel-devel-azureUpgrade kernel-debug-vdsoUpgrade kernel-azureUpgrade kernel-sourceUpgrade kernel-rtUpgrade kernel-macrosUpgrade kernel-devel-rtUpgrade cluster-md-kmp-defaultUpgrade kernel-kvmsmall-develUpgrade dtb-nvidiaUpgrade dtb-lgUpgrade kernel-rt-livepatchUpgrade gfs2-kmp-azureUpgrade dtb-exynosUpgrade dtb-armUpgrade dtb-rockchipUpgrade kernel-rt-develUpgrade cluster-md-kmp-rtUpgrade kernel-syms-azureUpgrade kernel-azure-develUpgrade cluster-md-kmp-azureUpgrade kernel-rt-vdsoUpgrade kernel-kvmsmallUpgrade kselftests-kmp-64kbUpgrade kernel-obs-buildUpgrade dtb-alteraUpgrade dtb-qcomUpgrade kernel-default-optionalUpgrade kernel-azure-livepatch-develUpgrade kernel-default-vdsoUpgrade dtb-xilinxUpgrade dtb-cavium | Jul 10, 2024 | Jun 19, 2024 |
| Ubuntu | — | Upgrade linux-image-6.8.0-40-genericUpgrade linux-image-ibm-classicUpgrade linux-image-raspi-nolpaeUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-5.15.0-1064-intel-iotgUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-oem-20.04dUpgrade linux-image-oem-24.04aUpgrade linux-image-awsUpgrade linux-image-6.8.0-1011-nvidia-64kUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-6.8.0-1010-oracle-64kUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-6.8.0-40-generic-64kUpgrade linux-image-azure-cvmUpgrade linux-image-5.15.0-1067-oracleUpgrade linux-image-5.15.0-1064-nvidia-lowlatencyUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.8.0-1010-oemUpgrade linux-image-gcpUpgrade linux-image-5.15.0-121-generic-lpaeUpgrade linux-image-oracleUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-raspiUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-nvidia-64kUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-5.15.0-1064-nvidiaUpgrade linux-image-azure-fdeUpgrade linux-image-6.8.0-1011-nvidia-lowlatencyUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-5.15.0-1052-gkeopUpgrade linux-image-6.8.0-1010-oracleUpgrade linux-image-5.15.0-1072-azure-fdeUpgrade linux-image-aws-lts-22.04Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1008-gkeUpgrade linux-image-6.8.0-1012-gcpUpgrade linux-image-6.8.0-1011-nvidiaUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-kvmUpgrade linux-image-5.15.0-1066-gkeUpgrade linux-image-oracle-64kUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-6.8.0-1009-raspiUpgrade linux-image-intelUpgrade linux-image-lowlatencyUpgrade linux-image-gkeop-5.15Upgrade linux-image-5.15.0-1072-azureUpgrade linux-image-azureUpgrade linux-image-nvidiaUpgrade linux-image-oem-20.04Upgrade linux-image-5.15.0-1068-gcpUpgrade linux-image-5.15.0-121-lowlatency-64kUpgrade linux-image-gkeopUpgrade linux-image-6.8.0-1013-awsUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-oem-20.04cUpgrade linux-image-generic-64kUpgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-6.8.0-1010-ibmUpgrade linux-image-5.15.0-1035-xilinx-zynqmpUpgrade linux-image-nvidia-6.8Upgrade linux-image-6.8.0-1011-nvidia-lowlatency-64kUpgrade linux-image-5.15.0-121-generic-64kUpgrade linux-image-lowlatency-64kUpgrade linux-image-gkeUpgrade linux-image-6.8.0-40-lowlatency-64kUpgrade linux-image-5.15.0-1062-ibmUpgrade linux-image-5.15.0-1062-raspiUpgrade linux-image-virtualUpgrade linux-image-6.8.0-1012-azure-fdeUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-5.15.0-1069-awsUpgrade linux-image-6.8.0-40-lowlatencyUpgrade linux-image-5.15.0-1066-kvmUpgrade linux-image-6.8.0-1012-azureUpgrade linux-image-azure-lts-22.04Upgrade linux-image-gke-5.15Upgrade linux-image-5.15.0-121-genericUpgrade linux-image-generic-lpaeUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-genericUpgrade linux-image-ibmUpgrade linux-image-oem-24.04Upgrade linux-image-oem-20.04bUpgrade linux-image-5.15.0-121-lowlatencyUpgrade linux-image-intel-iotg | 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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