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In the Linux kernel, the following vulnerability has been resolved:
drm/prime: Fix use after free in mmap with drm_gem_ttm_mmap
drm_gem_ttm_mmap() drops a reference to the gem object on success. If the gem object's refcount == 1 on entry to drm_gem_prime_mmap(), that drop will free the gem object, and the subsequent drm_gem_object_get() will be a UAF. Fix by grabbing a reference before calling the mmap helper.
This issue was forseen when the reference dropping was adding in commit 9786b65bc61ac ("drm/ttm: fix mmap refcounting"): "For that to work properly the drm_gem_object_get() call in drm_gem_ttm_mmap() must be moved so it happens before calling obj->funcs->mmap(), otherwise the gem refcount would go down to zero."
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 30, 2024 | Apr 10, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade kernelUpgrade python3-perf | Oct 9, 2024 | Apr 10, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 10, 2024 |
| Suse | — | Upgrade kernel-devel-rtUpgrade gfs2-kmp-azureUpgrade dtb-qcomUpgrade kernel-azure-develUpgrade reiserfs-kmp-azureUpgrade kernel-default-optionalUpgrade kernel-azure-optionalUpgrade cluster-md-kmp-rtUpgrade kernel-devel-azureUpgrade dtb-allwinnerUpgrade kernel-kvmsmallUpgrade kernel-develUpgrade dtb-mediatekUpgrade kselftests-kmp-64kbUpgrade dtb-exynosUpgrade kernel-sourceUpgrade dtb-xilinxUpgrade dtb-armUpgrade kernel-azure-livepatch-develUpgrade gfs2-kmp-rtUpgrade dtb-caviumUpgrade ocfs2-kmp-rtUpgrade kernel-rtUpgrade gfs2-kmp-defaultUpgrade dtb-alteraUpgrade dtb-sprdUpgrade kernel-syms-azureUpgrade kernel-preempt-develUpgrade kernel-rt-develUpgrade kernel-preemptUpgrade kernel-64kb-develUpgrade kernel-rt-livepatchUpgrade dlm-kmp-64kbUpgrade kernel-symsUpgrade ocfs2-kmp-defaultUpgrade kernel-default-vdsoUpgrade kernel-default-base-rebuildUpgrade dtb-rockchipUpgrade ocfs2-kmp-azureUpgrade dtb-nvidiaUpgrade kernel-obs-qaUpgrade kernel-default-livepatch-develUpgrade kernel-rt-livepatch-develUpgrade dtb-apmUpgrade kernel-default-extraUpgrade dtb-freescaleUpgrade kernel-azure-extraUpgrade gfs2-kmp-64kbUpgrade dtb-marvellUpgrade kernel-default-develUpgrade kernel-rt_debug-develUpgrade kernel-64kb-livepatch-develUpgrade kernel-debugUpgrade kernel-rt-extraUpgrade dtb-socionextUpgrade reiserfs-kmp-64kbUpgrade reiserfs-kmp-defaultUpgrade kernel-rt_debugUpgrade dlm-kmp-azureUpgrade kernel-64kb-optionalUpgrade kernel-kvmsmall-vdsoUpgrade kernel-rt_debug-vdsoUpgrade reiserfs-kmp-rtUpgrade kernel-azureUpgrade dtb-renesasUpgrade kernel-64kbUpgrade kernel-docs-htmlUpgrade dtb-lgUpgrade kselftests-kmp-rtUpgrade kselftests-kmp-azureUpgrade kernel-64kb-extraUpgrade kernel-rt-vdsoUpgrade kernel-default-livepatchUpgrade cluster-md-kmp-64kbUpgrade dtb-appleUpgrade dtb-amlogicUpgrade kernel-syms-rtUpgrade kernel-debug-vdsoUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-default-baseUpgrade dtb-amdUpgrade kselftests-kmp-defaultUpgrade dtb-hisiliconUpgrade kernel-debug-livepatch-develUpgrade kernel-kvmsmall-develUpgrade ocfs2-kmp-64kbUpgrade kernel-source-rtUpgrade cluster-md-kmp-defaultUpgrade kernel-azure-vdsoUpgrade kernel-zfcpdumpUpgrade dlm-kmp-rtUpgrade cluster-md-kmp-azureUpgrade kernel-defaultUpgrade kernel-obs-buildUpgrade kernel-macrosUpgrade kernel-source-azureUpgrade kernel-rt-optionalUpgrade dtb-amazonUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-docsUpgrade kernel-source-vanillaUpgrade kernel-debug-develUpgrade dtb-broadcomUpgrade dlm-kmp-default | Aug 9, 2024 | Apr 10, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 2, 2025 | Apr 10, 2024 |
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