In the Linux kernel, the following vulnerability has been resolved:
drm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()
While receiving an MST up request message from one thread in drm_dp_mst_handle_up_req(), the MST topology could be removed from another thread via drm_dp_mst_topology_mgr_set_mst(false), freeing mst_primary and setting drm_dp_mst_topology_mgr::mst_primary to NULL. This could lead to a NULL deref/use-after-free of mst_primary in drm_dp_mst_handle_up_req().
Avoid the above by holding a reference for mst_primary in drm_dp_mst_handle_up_req() while it's used.
v2: Fix kfreeing the request if getting an mst_primary reference fails.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel-tools-debuginfoUpgrade kernel-libbpf-staticUpgrade kernel-debuginfoUpgrade kernel-libbpf-develUpgrade bpftoolUpgrade kernel-headersUpgrade kernel-modules-extra-commonUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-develUpgrade kernel-libbpfUpgrade python3-perfUpgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade kernel-toolsUpgrade bpftool-debuginfoUpgrade perfUpgrade kernel-livepatch-6.1.124-134.200Upgrade python3-perf-debuginfoUpgrade kernel-modules-extra | Mar 10, 2025 | Jan 11, 2025 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Jan 13, 2025 | Jan 11, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade python3-perfUpgrade bpftoolUpgrade kernel-toolsUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libs | Apr 11, 2025 | Jan 11, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernelUpgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade python3-perfUpgrade bpftool | May 7, 2025 | Jan 11, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-tools-libsUpgrade python3-perfUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-abi-stablelistsUpgrade kernel | Jun 11, 2025 | Jan 11, 2025 |
| Redhat_linux | — | Upgrade kernel-rtUpgrade kernelNo solution exists | May 15, 2025 | Jan 11, 2025 |
| Ubuntu | — | Upgrade linux-image-oem-24.04aUpgrade linux-image-5.15.0-1081-aws-fipsUpgrade linux-image-lowlatency-64k-hwe-24.04Upgrade linux-image-5.15.0-1081-realtimeUpgrade linux-image-aws-lts-24.04Upgrade linux-image-nvidia-64kUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-realtimeUpgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-1023-oracleUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-6.11.0-1013-oracle-64kUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-6.8.0-1025-nvidia-64kUpgrade linux-image-6.8.0-1026-azure-fdeUpgrade linux-image-gkeop-5.15Upgrade linux-image-oem-22.04bUpgrade linux-image-gcp-fipsUpgrade linux-image-6.8.0-1023-oracle-64kUpgrade linux-image-5.15.0-136-fipsUpgrade linux-image-6.11.0-1011-gcp-64kUpgrade linux-image-5.15.0-1074-ibmUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-5.15.0-1086-azure-fdeUpgrade linux-image-6.8.0-1022-gkeUpgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-aws-lts-22.04Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-5.15.0-1081-gcpUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-6.8.0-57-lowlatency-64kUpgrade linux-image-azure-fipsUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-57-generic-64kUpgrade linux-image-6.8.0-1027-awsUpgrade linux-image-6.8.0-1023-ibmUpgrade linux-image-5.15.0-136-generic-64kUpgrade linux-image-5.15.0-1078-oracleUpgrade linux-image-6.11.0-1011-lowlatencyUpgrade linux-image-6.8.0-1028-raspiUpgrade linux-image-5.15.0-1077-intel-iotgUpgrade linux-image-6.8.0-1027-gcpUpgrade linux-image-5.15.0-1078-gkeUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-6.11.0-21-generic-64kUpgrade linux-image-virtualUpgrade linux-image-5.15.0-136-lowlatency-64kUpgrade linux-image-6.11.0-1010-raspiUpgrade linux-image-5.15.0-1076-intel-iotgUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-5.15.0-1074-intel-iot-realtimeUpgrade linux-image-raspi-nolpaeUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-oem-22.04dUpgrade linux-image-6.11.0-1017-oemUpgrade linux-image-oracleUpgrade linux-image-awsUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.11.0-1011-gcpUpgrade linux-image-azure-cvmUpgrade linux-image-5.15.0-1080-gcpUpgrade linux-image-azure-fdeUpgrade linux-image-6.8.0-1025-nvidia-lowlatencyUpgrade linux-image-5.15.0-1075-nvidiaUpgrade linux-image-oracle-64kUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-6.8.0-1026-azureUpgrade linux-image-6.8.0-1014-azure-nvidiaUpgrade linux-image-gcp-64kUpgrade linux-image-oem-20.04dUpgrade linux-image-6.8.0-1009-gkeopUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-azure-lts-24.04Upgrade linux-image-kvmUpgrade linux-image-6.11.0-1012-azureUpgrade linux-image-6.11.0-1012-azure-fdeUpgrade linux-image-raspi-realtimeUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-5.15.0-1022-nvidia-tegra-igx-rtUpgrade linux-image-gcpUpgrade linux-image-5.15.0-1081-awsUpgrade linux-image-6.8.0-1025-oemUpgrade linux-image-6.11.0-1011-lowlatency-64kUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-5.15.0-1080-gcp-fipsUpgrade linux-image-6.8.0-1026-awsUpgrade linux-image-oem-20.04Upgrade linux-image-lowlatencyUpgrade linux-image-6.8.0-1027-gcp-64kUpgrade linux-image-6.11.0-21-genericUpgrade linux-image-5.15.0-1034-nvidia-tegra-rtUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-5.15.0-1046-xilinx-zynqmpUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-generic-64kUpgrade linux-image-oem-22.04aUpgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-oem-22.04Upgrade linux-image-nvidia-tegraUpgrade linux-image-gkeop-6.8Upgrade linux-image-genericUpgrade linux-image-nvidia-6.8Upgrade linux-image-generic-lpaeUpgrade linux-image-aws-fipsUpgrade linux-image-5.15.0-1022-nvidia-tegra-igxUpgrade linux-image-5.15.0-1063-gkeopUpgrade linux-image-gke-5.15Upgrade linux-image-6.11.0-1011-awsUpgrade linux-image-nvidiaUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-1025-nvidia-lowlatency-64kUpgrade linux-image-oem-20.04bUpgrade linux-image-raspiUpgrade linux-image-6.8.1-1019-realtimeUpgrade linux-image-5.15.0-1073-ibmUpgrade linux-image-gkeUpgrade linux-image-5.15.0-1077-kvmUpgrade linux-image-5.15.0-1086-azureUpgrade linux-image-6.11.0-1007-realtimeUpgrade linux-image-5.15.0-136-lowlatencyUpgrade linux-image-intelUpgrade linux-image-6.11.0-1013-oracleUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-gkeopUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-azure-lts-22.04Upgrade linux-image-5.15.0-136-generic-lpaeUpgrade linux-image-oem-22.04cUpgrade linux-image-fipsUpgrade linux-image-oem-24.04bUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-ibmUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-6.8.0-1025-nvidiaUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-5.15.0-1075-raspiUpgrade linux-image-6.8.0-57-genericUpgrade linux-image-oem-20.04cUpgrade linux-image-5.15.0-136-genericUpgrade linux-image-5.15.0-1034-nvidia-tegraUpgrade linux-image-6.8.0-57-lowlatencyUpgrade linux-image-lowlatency-hwe-24.04Upgrade linux-image-5.15.0-1075-nvidia-lowlatencyUpgrade linux-image-oem-24.04Upgrade linux-image-azure-nvidiaUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-5.15.0-1085-azure-fipsUpgrade linux-image-intel-iotgUpgrade linux-image-6.8.0-2023-raspi-realtimeUpgrade linux-image-azureUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-lowlatency-hwe-20.04 | Mar 28, 2025 | Jan 11, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Jan 11, 2025 |
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