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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-debug-modules-extraUpgrade kernel-debug-develUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libs-develUpgrade kernel-zfcpdump-modulesUpgrade kernel-debug-modulesUpgrade kernel-zfcpdump-modules-extraUpgrade kernelUpgrade kernel-rt-debug-develUpgrade kernel-rt-coreUpgrade kernel-debugUpgrade kernel-rt-debug-kvmUpgrade kernel-zfcpdump-develUpgrade kernel-headersUpgrade kernel-rt-debug-modulesUpgrade kernel-rt-debug-coreUpgrade kernel-debug-coreUpgrade kernel-rt-modules-extraUpgrade kernel-tools-libsUpgrade kernel-cross-headersUpgrade kernel-develUpgrade kernel-rt-develUpgrade kernel-rtUpgrade kernel-modulesUpgrade kernel-zfcpdumpUpgrade kernel-rt-debug-modules-extraUpgrade bpftoolUpgrade python3-perfUpgrade perfUpgrade kernel-rt-debugUpgrade kernel-modules-extraUpgrade kernel-docUpgrade kernel-toolsUpgrade kernel-coreUpgrade kernel-rt-kvmUpgrade kernel-rt-modulesUpgrade kernel-zfcpdump-core | Aug 12, 2024 | May 22, 2024 |
| Amazon Linux Ami 2 | — | Upgrade python-perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernel-livepatch-5.10.82-83.359Upgrade python-perfUpgrade perfUpgrade perf-debuginfoUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-debuginfoUpgrade kernel-debuginfoUpgrade kernel-toolsUpgrade bpftool-debuginfoUpgrade kernel-develUpgrade kernelUpgrade bpftool | 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-debuginfo-common-x86_64Upgrade kernel-develUpgrade kernel-rt-debug-debuginfoUpgrade kernel-coreUpgrade kernel-tools-libsUpgrade kernel-rt-modules-extraUpgrade kernel-rt-develUpgrade kernelUpgrade kernel-rt-debugUpgrade kernel-rt-debug-modulesUpgrade kernel-tools-debuginfoUpgrade kernel-debug-coreUpgrade kernel-modulesUpgrade kernel-debug-modules-extraUpgrade kernel-modules-extraUpgrade kernel-debug-modulesUpgrade kernel-rt-kvmUpgrade kernel-rt-coreUpgrade bpftoolUpgrade python3-perf-debuginfoUpgrade kernel-debug-debuginfoUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debug-develUpgrade kernel-rt-debug-coreUpgrade bpftool-debuginfoUpgrade kernel-cross-headersUpgrade kernel-debugUpgrade kernel-rt-debuginfoUpgrade perf-debuginfoUpgrade python3-perfUpgrade perfUpgrade kernel-rt-debug-develUpgrade kernel-headersUpgrade kernel-rt-modulesUpgrade kernel-rtUpgrade kernel-rt-debug-kvmUpgrade kernel-rt-debug-modules-extraUpgrade kernel-toolsUpgrade kernel-tools-libs-devel | Aug 22, 2024 | May 22, 2024 |
| Suse | — | Upgrade dtb-marvellUpgrade kernel-kvmsmall-develUpgrade dtb-amdUpgrade kernel-default-livepatchUpgrade kernel-default-vdsoUpgrade kernel-devel-rtUpgrade kernel-rt-livepatch-develUpgrade kernel-rt_debugUpgrade kernel-syms-azureUpgrade kernel-debug-develUpgrade dtb-broadcomUpgrade kernel-default-develUpgrade dtb-amlogicUpgrade kernel-default-extraUpgrade gfs2-kmp-rtUpgrade kernel-devel-azureUpgrade dlm-kmp-azureUpgrade kernel-obs-qaUpgrade dlm-kmp-64kbUpgrade dtb-armUpgrade kernel-azure-develUpgrade dtb-qcomUpgrade ocfs2-kmp-rtUpgrade kernel-sourceUpgrade kernel-64kb-develUpgrade dtb-freescaleUpgrade kernel-kvmsmallUpgrade dtb-appleUpgrade kernel-macrosUpgrade kernel-rt-livepatchUpgrade kernel-rt_debug-vdsoUpgrade kernel-debug-livepatch-develUpgrade gfs2-kmp-64kbUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-64kb-optionalUpgrade kernel-64kbUpgrade kernel-rtUpgrade kernel-zfcpdumpUpgrade cluster-md-kmp-azureUpgrade dtb-exynosUpgrade dtb-xilinxUpgrade kernel-rt-develUpgrade kernel-syms-rtUpgrade kernel-azure-extraUpgrade dtb-lgUpgrade kselftests-kmp-64kbUpgrade dtb-amazonUpgrade kernel-azure-vdsoUpgrade kernel-azure-livepatch-develUpgrade kernel-64kb-livepatch-develUpgrade kernel-debugUpgrade dtb-apmUpgrade cluster-md-kmp-defaultUpgrade kernel-source-azureUpgrade dtb-hisiliconUpgrade dtb-mediatekUpgrade kernel-docs-htmlUpgrade kernel-symsUpgrade dtb-sprdUpgrade dtb-allwinnerUpgrade kernel-azureUpgrade kernel-rt-extraUpgrade dlm-kmp-defaultUpgrade kernel-source-vanillaUpgrade kernel-docsUpgrade kernel-develUpgrade kselftests-kmp-rtUpgrade kernel-default-baseUpgrade dtb-nvidiaUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-rt-optionalUpgrade kernel-rt_debug-develUpgrade kernel-azure-optionalUpgrade gfs2-kmp-defaultUpgrade kernel-rt-vdsoUpgrade kselftests-kmp-defaultUpgrade kernel-default-optionalUpgrade dtb-rockchipUpgrade reiserfs-kmp-rtUpgrade kernel-64kb-extraUpgrade kernel-obs-buildUpgrade cluster-md-kmp-rtUpgrade kselftests-kmp-azureUpgrade dtb-caviumUpgrade reiserfs-kmp-defaultUpgrade reiserfs-kmp-64kbUpgrade kernel-default-base-rebuildUpgrade ocfs2-kmp-64kbUpgrade reiserfs-kmp-azureUpgrade ocfs2-kmp-defaultUpgrade dtb-socionextUpgrade dtb-alteraUpgrade kernel-debug-vdsoUpgrade cluster-md-kmp-64kbUpgrade ocfs2-kmp-azureUpgrade kernel-defaultUpgrade kernel-default-livepatch-develUpgrade dlm-kmp-rtUpgrade kernel-source-rtUpgrade dtb-renesasUpgrade gfs2-kmp-azureUpgrade kernel-kvmsmall-vdso | 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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