In the Linux kernel, the following vulnerability has been resolved:
selinux: fix NULL-pointer dereference when hashtab allocation fails
When the hash table slot array allocation fails in hashtab_init(), h->size is left initialized with a non-zero value, but the h->htable pointer is NULL. This may then cause a NULL pointer dereference, since the policydb code relies on the assumption that even after a failed hashtab_init(), hashtab_map() and hashtab_destroy() can be safely called on it. Yet, these detect an empty hashtab only by looking at the size.
Fix this by making sure that hashtab_init() always leaves behind a valid empty hashtab when the allocation fails.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade python-perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-livepatch-5.10.82-83.359Upgrade kernel-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-headersUpgrade kernelUpgrade perf-debuginfoUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-tools-develUpgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-debuginfoUpgrade perfUpgrade python-perf | Aug 28, 2024 | Apr 10, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Apr 10, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 10, 2024 |
| Suse | — | Upgrade kernel-64kb-extraUpgrade ocfs2-kmp-defaultUpgrade dlm-kmp-defaultUpgrade kselftests-kmp-rtUpgrade kernel-rt-extraUpgrade dtb-allwinnerUpgrade kernel-default-livepatch-develUpgrade dtb-broadcomUpgrade kernel-defaultUpgrade kernel-default-baseUpgrade kernel-azure-optionalUpgrade cluster-md-kmp-rtUpgrade dtb-renesasUpgrade cluster-md-kmp-64kbUpgrade kselftests-kmp-azureUpgrade kernel-docsUpgrade kernel-default-base-rebuildUpgrade kernel-source-vanillaUpgrade ocfs2-kmp-azureUpgrade dtb-sprdUpgrade reiserfs-kmp-azureUpgrade kernel-debug-vdsoUpgrade kernel-azureUpgrade kernel-source-rtUpgrade reiserfs-kmp-defaultUpgrade gfs2-kmp-azureUpgrade kernel-develUpgrade gfs2-kmp-defaultUpgrade reiserfs-kmp-rtUpgrade kernel-rt-vdsoUpgrade kernel-kvmsmall-vdsoUpgrade dtb-marvellUpgrade dlm-kmp-rtUpgrade reiserfs-kmp-64kbUpgrade kernel-rt_debug-develUpgrade kernel-rt_debug-livepatch-develUpgrade dtb-socionextUpgrade kernel-rt-optionalUpgrade kernel-default-livepatchUpgrade dtb-nvidiaUpgrade dtb-caviumUpgrade ocfs2-kmp-64kbUpgrade kernel-docs-htmlUpgrade dtb-rockchipUpgrade kernel-rt_debugUpgrade kernel-obs-buildUpgrade dtb-alteraUpgrade kernel-rt_debug-vdsoUpgrade kernel-64kb-develUpgrade dtb-apmUpgrade cluster-md-kmp-azureUpgrade kernel-kvmsmallUpgrade dtb-amdUpgrade dtb-qcomUpgrade kernel-rt-livepatch-develUpgrade kernel-debug-livepatch-develUpgrade kernel-azure-extraUpgrade kernel-64kbUpgrade dtb-armUpgrade kernel-default-develUpgrade kernel-rtUpgrade kernel-64kb-livepatch-develUpgrade dtb-hisiliconUpgrade kernel-macrosUpgrade kernel-default-vdsoUpgrade gfs2-kmp-rtUpgrade cluster-md-kmp-defaultUpgrade kernel-default-extraUpgrade dlm-kmp-64kbUpgrade kselftests-kmp-defaultUpgrade kernel-obs-qaUpgrade ocfs2-kmp-rtUpgrade kernel-rt-develUpgrade dtb-lgUpgrade dtb-amazonUpgrade gfs2-kmp-64kbUpgrade kernel-symsUpgrade kernel-kvmsmall-develUpgrade kernel-azure-develUpgrade kernel-devel-rtUpgrade kernel-debug-develUpgrade kernel-default-optionalUpgrade kernel-source-azureUpgrade dlm-kmp-azureUpgrade kernel-sourceUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-syms-rtUpgrade kernel-devel-azureUpgrade kernel-rt-livepatchUpgrade kernel-syms-azureUpgrade dtb-xilinxUpgrade kernel-azure-livepatch-develUpgrade dtb-mediatekUpgrade kernel-azure-vdsoUpgrade dtb-appleUpgrade dtb-freescaleUpgrade kernel-zfcpdumpUpgrade dtb-exynosUpgrade dtb-amlogicUpgrade kernel-64kb-optionalUpgrade kernel-debugUpgrade kselftests-kmp-64kb | Aug 9, 2024 | Apr 10, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Apr 10, 2024 |
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