In the Linux kernel, the following vulnerability has been resolved:
drm/vmwgfx: Create debugfs ttm_resource_manager entry only if needed
The driver creates /sys/kernel/debug/dri/0/mob_ttm even when the corresponding ttm_resource_manager is not allocated. This leads to a crash when trying to read from this file.
Add a check to create mob_ttm, system_mob_ttm, and gmr_ttm debug file only when the corresponding ttm_resource_manager is allocated.
crash> bt PID: 3133409 TASK: ffff8fe4834a5000 CPU: 3 COMMAND: "grep" #0 [ffffb954506b3b20] machine_kexec at ffffffffb2a6bec3 #1 [ffffb954506b3b78] __crash_kexec at ffffffffb2bb598a #2 [ffffb954506b3c38] crash_kexec at ffffffffb2bb68c1 #3 [ffffb954506b3c50] oops_end at ffffffffb2a2a9b1 #4 [ffffb954506b3c70] no_context at ffffffffb2a7e913 #5 [ffffb954506b3cc8] __bad_area_nosemaphore at ffffffffb2a7ec8c #6 [ffffb954506b3d10] do_page_fault at ffffffffb2a7f887 #7 [ffffb954506b3d40] page_fault at ffffffffb360116e [exception RIP: ttm_resource_manager_debug+0x11] RIP: ffffffffc04afd11 RSP: ffffb954506b3df0 RFLAGS: 00010246 RAX: ffff8fe41a6d1200 RBX: 0000000000000000 RCX: 0000000000000940 RDX: 0000000000000000 RSI: ffffffffc04b4338 RDI: 0000000000000000 RBP: ffffb954506b3e08 R8: ffff8fee3ffad000 R9: 0000000000000000 R10: ffff8fe41a76a000 R11: 0000000000000001 R12: 00000000ffffffff R13: 0000000000000001 R14: ffff8fe5bb6f3900 R15: ffff8fe41a6d1200 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 #8 [ffffb954506b3e00] ttm_resource_manager_show at ffffffffc04afde7 [ttm] #9 [ffffb954506b3e30] seq_read at ffffffffb2d8f9f3 RIP: 00007f4c4eda8985 RSP: 00007ffdbba9e9f8 RFLAGS: 00000246 RAX: ffffffffffffffda RBX: 000000000037e000 RCX: 00007f4c4eda8985 RDX: 000000000037e000 RSI: 00007f4c41573000 RDI: 0000000000000003 RBP: 000000000037e000 R8: 0000000000000000 R9: 000000000037fe30 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4c41573000 R13: 0000000000000003 R14: 00007f4c41572010 R15: 0000000000000003 ORIG_RAX: 0000000000000000 CS: 0033 SS: 002b
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-rt-modulesUpgrade kernel-rtUpgrade kernel-zfcpdump-modulesUpgrade kernel-rt-kvmUpgrade kernel-debug-modulesUpgrade kernel-toolsUpgrade kernel-zfcpdumpUpgrade kernel-abi-stablelistsUpgrade kernel-zfcpdump-coreUpgrade kernel-tools-libsUpgrade bpftoolUpgrade kernel-debug-modules-extraUpgrade kernel-docUpgrade kernel-rt-debug-modulesUpgrade kernel-modulesUpgrade kernel-rt-debug-modules-extraUpgrade kernel-tools-libs-develUpgrade kernel-rt-modules-extraUpgrade kernel-rt-debug-coreUpgrade kernel-rt-develUpgrade kernel-cross-headersUpgrade perfUpgrade kernel-debug-coreUpgrade kernel-debug-develUpgrade kernelUpgrade kernel-rt-coreUpgrade kernel-rt-debug-kvmUpgrade kernel-zfcpdump-develUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-rt-debug-develUpgrade kernel-develUpgrade kernel-rt-debugUpgrade kernel-debugUpgrade kernel-headersUpgrade python3-perfUpgrade kernel-coreUpgrade kernel-modules-extra | Aug 12, 2024 | May 1, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | May 1, 2024 |
| Oracle_linux | — | Upgrade kernel | Aug 16, 2024 | May 1, 2024 |
| Redhat_linux | — | Upgrade kernelNo solution existsUpgrade kernel-rt | Aug 12, 2024 | May 1, 2024 |
| Rocky_linux | — | Upgrade python3-perfUpgrade kernelUpgrade kernel-develUpgrade kernel-headersUpgrade kernel-debug-coreUpgrade kernel-rt-modules-extraUpgrade kernel-cross-headersUpgrade kernel-tools-debuginfoUpgrade kernel-debug-develUpgrade kernel-rt-debug-kvmUpgrade python3-perf-debuginfoUpgrade kernel-rt-debug-develUpgrade kernel-rt-debuginfo-common-x86_64Upgrade kernel-modules-extraUpgrade kernel-debugUpgrade kernel-modulesUpgrade kernel-debuginfoUpgrade kernel-rt-debug-debuginfoUpgrade kernel-rt-coreUpgrade kernel-rt-debugUpgrade perfUpgrade kernel-tools-libsUpgrade kernel-coreUpgrade kernel-rt-debug-modulesUpgrade kernel-rt-develUpgrade kernel-rt-modulesUpgrade bpftool-debuginfoUpgrade kernel-toolsUpgrade kernel-debug-debuginfoUpgrade kernel-rt-kvmUpgrade kernel-rt-debuginfoUpgrade perf-debuginfoUpgrade kernel-tools-libs-develUpgrade kernel-rt-debug-coreUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-rt-debug-modules-extraUpgrade kernel-debug-modulesUpgrade bpftoolUpgrade kernel-debug-modules-extraUpgrade kernel-rt | Aug 22, 2024 | May 1, 2024 |
| Suse | — | Upgrade kernel-rt-livepatchUpgrade dtb-alteraUpgrade kernel-sourceUpgrade dtb-qcomUpgrade kernel-zfcpdumpUpgrade kernel-macrosUpgrade kernel-source-azureUpgrade dtb-freescaleUpgrade kernel-default-extraUpgrade kernel-azure-vdsoUpgrade kernel-syms-rtUpgrade kselftests-kmp-64kbUpgrade kernel-syms-azureUpgrade dtb-exynosUpgrade dtb-amazonUpgrade cluster-md-kmp-azureUpgrade gfs2-kmp-rtUpgrade dtb-rockchipUpgrade kernel-default-livepatchUpgrade dtb-lgUpgrade kernel-rt-vdsoUpgrade kernel-kvmsmallUpgrade kernel-devel-azureUpgrade kernel-rt-livepatch-develUpgrade kernel-kvmsmall-vdsoUpgrade kernel-azure-optionalUpgrade kernel-default-base-rebuildUpgrade kernel-azure-develUpgrade kernel-obs-qaUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-debug-livepatch-develUpgrade ocfs2-kmp-64kbUpgrade kernel-rt_debug-vdsoUpgrade dtb-amlogicUpgrade kernel-default-vdsoUpgrade kernel-rtUpgrade reiserfs-kmp-azureUpgrade kernel-default-develUpgrade kernel-64kb-livepatch-develUpgrade ocfs2-kmp-rtUpgrade dlm-kmp-64kbUpgrade cluster-md-kmp-defaultUpgrade gfs2-kmp-64kbUpgrade kernel-kvmsmall-develUpgrade kernel-symsUpgrade dtb-apmUpgrade kernel-azure-livepatch-develUpgrade dtb-broadcomUpgrade kernel-64kbUpgrade kernel-devel-rtUpgrade kernel-source-vanillaUpgrade kselftests-kmp-defaultUpgrade kernel-default-optionalUpgrade kernel-azure-extraUpgrade dlm-kmp-defaultUpgrade kernel-debug-develUpgrade kernel-debugUpgrade kernel-rt-extraUpgrade reiserfs-kmp-rtUpgrade kernel-rt-optionalUpgrade reiserfs-kmp-defaultUpgrade dtb-amdUpgrade dtb-hisiliconUpgrade kernel-develUpgrade kernel-defaultUpgrade kernel-64kb-optionalUpgrade dtb-sprdUpgrade ocfs2-kmp-azureUpgrade kernel-64kb-develUpgrade dtb-marvellUpgrade dtb-allwinnerUpgrade dlm-kmp-rtUpgrade kselftests-kmp-rtUpgrade cluster-md-kmp-64kbUpgrade dtb-nvidiaUpgrade dlm-kmp-azureUpgrade kernel-azureUpgrade reiserfs-kmp-64kbUpgrade kernel-source-rtUpgrade kernel-rt_debugUpgrade kernel-default-livepatch-develUpgrade gfs2-kmp-azureUpgrade dtb-appleUpgrade kernel-64kb-extraUpgrade kernel-obs-buildUpgrade kernel-debug-vdsoUpgrade gfs2-kmp-defaultUpgrade cluster-md-kmp-rtUpgrade kernel-rt_debug-develUpgrade kernel-docs-htmlUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-default-baseUpgrade kernel-docsUpgrade dtb-caviumUpgrade ocfs2-kmp-defaultUpgrade dtb-renesasUpgrade kernel-rt-develUpgrade kselftests-kmp-azureUpgrade dtb-xilinxUpgrade dtb-armUpgrade dtb-mediatekUpgrade dtb-socionext | Jun 13, 2024 | May 1, 2024 |
| Ubuntu | — | Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-azureUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-oracle-64kUpgrade linux-image-oem-24.04aUpgrade linux-image-6.8.0-1005-raspiUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-ibmUpgrade linux-image-lowlatencyUpgrade linux-image-6.8.0-1008-azure-fdeUpgrade linux-image-6.8.0-1006-oracle-64kUpgrade linux-image-6.8.0-1006-oracleUpgrade linux-image-azure-fdeUpgrade linux-image-6.8.0-1006-ibmUpgrade linux-image-kvmUpgrade linux-image-6.8.0-1008-azureUpgrade linux-image-raspiUpgrade linux-image-ibm-classicUpgrade linux-image-gcpUpgrade linux-image-awsUpgrade linux-image-6.8.0-35-generic-64kUpgrade linux-image-6.8.0-1004-gkeUpgrade linux-image-generic-lpaeUpgrade linux-image-6.8.0-1009-awsUpgrade linux-image-oracleUpgrade linux-image-genericUpgrade linux-image-generic-64kUpgrade linux-image-lowlatency-64kUpgrade linux-image-oem-24.04Upgrade linux-image-6.8.0-35-lowlatencyUpgrade linux-image-6.8.0-35-lowlatency-64kUpgrade linux-image-6.8.0-1006-oemUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.8.0-1008-gcpUpgrade linux-image-virtualUpgrade linux-image-6.8.0-35-genericUpgrade linux-image-gke | Jul 1, 2024 | May 1, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 14, 2025 | May 1, 2024 |
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