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In the Linux kernel, the following vulnerability has been resolved:
userfaultfd: fix a race between writeprotect and exit_mmap()
A race is possible when a process exits, its VMAs are removed by exit_mmap() and at the same time userfaultfd_writeprotect() is called.
The race was detected by KASAN on a development kernel, but it appears to be possible on vanilla kernels as well.
Use mmget_not_zero() to prevent the race as done in other userfaultfd operations.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-modules-extraUpgrade kernel-toolsUpgrade kernel-rt-debugUpgrade kernel-docUpgrade kernel-rtUpgrade python3-perfUpgrade kernel-zfcpdump-coreUpgrade kernel-modulesUpgrade kernel-zfcpdumpUpgrade kernel-develUpgrade kernel-rt-develUpgrade kernel-rt-modulesUpgrade bpftoolUpgrade kernel-rt-debug-modules-extraUpgrade perfUpgrade kernel-coreUpgrade kernel-rt-kvmUpgrade kernel-rt-debug-coreUpgrade kernel-debugUpgrade kernel-zfcpdump-modulesUpgrade kernel-tools-libs-develUpgrade kernelUpgrade kernel-rt-debug-develUpgrade kernel-rt-coreUpgrade kernel-cross-headersUpgrade kernel-rt-debug-kvmUpgrade kernel-debug-coreUpgrade kernel-zfcpdump-develUpgrade kernel-rt-debug-modulesUpgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-rt-modules-extraUpgrade kernel-debug-modulesUpgrade kernel-debug-develUpgrade kernel-debug-modules-extraUpgrade kernel-headers | Aug 12, 2024 | May 22, 2024 |
| Amazon Linux Ami 2 | — | Upgrade kernel-toolsUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade bpftoolUpgrade kernel-develUpgrade kernelUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade python-perfUpgrade perfUpgrade kernel-tools-develUpgrade kernel-livepatch-5.10.82-83.359Upgrade perf-debuginfoUpgrade kernel-headersUpgrade python-perf-debuginfo | Apr 25, 2025 | May 22, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | May 22, 2024 |
| Oracle_linux | — | Upgrade kernel | Aug 16, 2024 | May 22, 2024 |
| Redhat_linux | — | Upgrade kernelNo solution existsUpgrade kernel-rt | Aug 12, 2024 | May 22, 2024 |
| Rocky_linux | — | Upgrade kernel-rt-kvmUpgrade python3-perf-debuginfoUpgrade kernel-rt-modules-extraUpgrade kernel-debuginfoUpgrade kernel-rt-debuginfoUpgrade kernel-modules-extraUpgrade kernel-rt-debugUpgrade bpftool-debuginfoUpgrade kernel-rt-coreUpgrade kernel-debug-develUpgrade bpftoolUpgrade kernel-debug-debuginfoUpgrade kernel-rt-debug-modulesUpgrade kernel-debug-modulesUpgrade kernel-debugUpgrade kernel-rt-debug-coreUpgrade kernel-rt-debug-debuginfoUpgrade kernel-develUpgrade kernel-coreUpgrade kernel-modulesUpgrade kernel-tools-libsUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-cross-headersUpgrade kernel-rt-develUpgrade kernel-debug-modules-extraUpgrade kernel-debug-coreUpgrade kernel-tools-debuginfoUpgrade kernelUpgrade kernel-rt-debuginfo-common-x86_64Upgrade kernel-rt-debug-modules-extraUpgrade kernel-rt-debug-kvmUpgrade kernel-rt-modulesUpgrade perfUpgrade kernel-rtUpgrade kernel-headersUpgrade kernel-toolsUpgrade perf-debuginfoUpgrade kernel-tools-libs-develUpgrade python3-perfUpgrade kernel-rt-debug-devel | Aug 22, 2024 | May 22, 2024 |
| Suse | — | Upgrade dlm-kmp-defaultUpgrade dtb-nvidiaUpgrade kernel-docsUpgrade kernel-default-baseUpgrade kernel-develUpgrade reiserfs-kmp-64kbUpgrade dtb-socionextUpgrade kernel-rt_debug-develUpgrade kernel-source-vanillaUpgrade reiserfs-kmp-azureUpgrade dlm-kmp-rtUpgrade ocfs2-kmp-azureUpgrade kselftests-kmp-rtUpgrade kernel-rt-optionalUpgrade dtb-caviumUpgrade kernel-azureUpgrade kernel-default-base-rebuildUpgrade cluster-md-kmp-64kbUpgrade kernel-azure-optionalUpgrade gfs2-kmp-defaultUpgrade gfs2-kmp-azureUpgrade kernel-debug-vdsoUpgrade kernel-default-optionalUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-rt-vdsoUpgrade dtb-renesasUpgrade kernel-rt-extraUpgrade dtb-alteraUpgrade kernel-defaultUpgrade reiserfs-kmp-rtUpgrade kernel-source-rtUpgrade ocfs2-kmp-64kbUpgrade reiserfs-kmp-defaultUpgrade dtb-rockchipUpgrade ocfs2-kmp-defaultUpgrade kernel-64kb-extraUpgrade kselftests-kmp-azureUpgrade cluster-md-kmp-rtUpgrade dtb-sprdUpgrade kernel-default-livepatch-develUpgrade kernel-obs-buildUpgrade kselftests-kmp-defaultUpgrade dtb-allwinnerUpgrade kernel-kvmsmall-vdsoUpgrade kernel-64kb-livepatch-develUpgrade dtb-armUpgrade dlm-kmp-64kbUpgrade dtb-lgUpgrade kernel-syms-azureUpgrade kernel-zfcpdumpUpgrade kernel-rt_debugUpgrade kernel-kvmsmall-develUpgrade kernel-devel-rtUpgrade dtb-amdUpgrade dtb-marvellUpgrade kernel-default-livepatchUpgrade kernel-default-vdsoUpgrade dtb-appleUpgrade kernel-rtUpgrade kernel-debug-livepatch-develUpgrade kernel-kvmsmallUpgrade kernel-macrosUpgrade kernel-devel-azureUpgrade dlm-kmp-azureUpgrade kernel-default-extraUpgrade kernel-azure-extraUpgrade kernel-kvmsmall-livepatch-develUpgrade dtb-broadcomUpgrade kernel-azure-livepatch-develUpgrade dtb-freescaleUpgrade kernel-azure-vdsoUpgrade kernel-docs-htmlUpgrade kernel-rt-livepatch-develUpgrade dtb-hisiliconUpgrade kselftests-kmp-64kbUpgrade ocfs2-kmp-rtUpgrade kernel-azure-develUpgrade dtb-xilinxUpgrade dtb-amazonUpgrade dtb-apmUpgrade kernel-symsUpgrade kernel-64kb-develUpgrade dtb-exynosUpgrade kernel-syms-rtUpgrade kernel-rt-livepatchUpgrade kernel-rt-develUpgrade dtb-mediatekUpgrade dtb-qcomUpgrade cluster-md-kmp-azureUpgrade kernel-64kbUpgrade gfs2-kmp-64kbUpgrade gfs2-kmp-rtUpgrade cluster-md-kmp-defaultUpgrade kernel-sourceUpgrade kernel-debug-develUpgrade kernel-rt_debug-vdsoUpgrade kernel-obs-qaUpgrade kernel-default-develUpgrade kernel-64kb-optionalUpgrade kernel-source-azureUpgrade kernel-debugUpgrade dtb-amlogic | Aug 9, 2024 | May 22, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | May 22, 2024 |
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