In the Linux kernel, the following vulnerability has been resolved:
serial: protect uart_port_dtr_rts() in uart_shutdown() too
Commit af224ca2df29 (serial: core: Prevent unsafe uart port access, part 3) added few uport == NULL checks. It added one to uart_shutdown(), so the commit assumes, uport can be NULL in there. But right after that protection, there is an unprotected "uart_port_dtr_rts(uport, false);" call. That is invoked only if HUPCL is set, so I assume that is the reason why we do not see lots of these reports.
Or it cannot be NULL at this point at all for some reason :P.
Until the above is investigated, stay on the safe side and move this dereference to the if too.
I got this inconsistency from Coverity under CID 1585130. Thanks.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-toolsUpgrade python-perfUpgrade perfUpgrade perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-livepatch-5.10.230-223.885Upgrade bpftoolUpgrade kernel-headersUpgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-x86_64Upgrade python-perf-debuginfoUpgrade kernel-livepatch-5.15.173-118.169Upgrade kernelUpgrade kernel-debuginfo | Mar 14, 2025 | Oct 21, 2024 |
| Amazon_linux_2023 | — | Upgrade kernel-toolsUpgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64Upgrade bpftool-debuginfoUpgrade kernel-livepatch-6.1.115-126.197Upgrade kernel-modules-extraUpgrade kernel-libbpf-staticUpgrade kernel-modules-extra-commonUpgrade python3-perf-debuginfoUpgrade perfUpgrade kernel-libbpfUpgrade kernel-tools-develUpgrade kernelUpgrade bpftoolUpgrade kernel-tools-debuginfoUpgrade python3-perfUpgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade kernel-libbpf-develUpgrade kernel-debuginfo | Mar 27, 2025 | Oct 21, 2024 |
| Debian | — | Upgrade linux-6.1Upgrade linux | Nov 11, 2024 | Oct 21, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernel-tools-libsUpgrade kernel-toolsUpgrade python3-perfUpgrade kernelUpgrade kernel-abi-stablelists | Jan 14, 2025 | Oct 21, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade bpftoolUpgrade kernelUpgrade kernel-tools-libsUpgrade python3-perfUpgrade kernel-toolsUpgrade kernel-abi-stablelists | Feb 11, 2025 | Oct 21, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernelUpgrade bpftoolUpgrade kernel-toolsUpgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libs | Feb 11, 2025 | Oct 21, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade kernelUpgrade python3-perfUpgrade kernel-toolsUpgrade kernel-tools-libs | Jan 15, 2025 | Oct 21, 2024 |
| Redhat_linux | — | No solution existsUpgrade kernel-rtUpgrade kernel | May 15, 2025 | Oct 21, 2024 |
| Ubuntu | — | Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-nvidia-64kUpgrade linux-image-raspi-realtimeUpgrade linux-image-6.8.0-1027-awsUpgrade linux-image-5.15.0-1060-gkeopUpgrade linux-image-6.8.0-57-generic-64kUpgrade linux-image-6.11.0-18-generic-64kUpgrade linux-image-6.8.0-1026-gcpUpgrade linux-image-6.11.0-1010-lowlatency-64kUpgrade linux-image-azure-cvmUpgrade linux-image-lowlatency-64kUpgrade linux-image-oem-20.04dUpgrade linux-image-generic-lpaeUpgrade linux-image-intelUpgrade linux-image-ibmUpgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-5.15.0-1033-nvidia-tegra-rtUpgrade linux-image-oracleUpgrade linux-image-6.11.0-1011-oracleUpgrade linux-image-azure-nvidiaUpgrade linux-image-5.15.0-1080-awsUpgrade linux-image-kvmUpgrade linux-image-oem-22.04bUpgrade linux-image-5.15.0-1081-azure-fdeUpgrade linux-image-virtualUpgrade linux-image-nvidiaUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-gkeUpgrade linux-image-6.8.0-1024-nvidia-64kUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-oem-20.04bUpgrade linux-image-lowlatencyUpgrade linux-image-5.15.0-133-lowlatencyUpgrade linux-image-6.8.0-1026-gcp-64kUpgrade linux-image-5.15.0-134-genericUpgrade linux-image-oem-22.04aUpgrade linux-image-6.11.0-18-genericUpgrade linux-image-6.11.0-1009-gcpUpgrade linux-image-6.8.0-1024-nvidia-lowlatency-64kUpgrade linux-image-oem-24.04Upgrade linux-image-oem-24.04aUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-azure-lts-24.04Upgrade linux-image-azure-lts-22.04Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-6.8.0-1024-nvidiaUpgrade linux-image-5.15.0-1078-awsUpgrade linux-image-5.15.0-1021-nvidia-tegra-igxUpgrade linux-image-gkeopUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-56-genericUpgrade linux-image-oem-24.04bUpgrade linux-image-5.15.0-1075-gkeUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-ibm-classicUpgrade linux-image-5.15.0-134-generic-lpaeUpgrade linux-image-5.15.0-1076-kvmUpgrade linux-image-6.8.0-1024-nvidia-lowlatencyUpgrade linux-image-6.11.0-1011-oracle-64kUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-gcpUpgrade linux-image-5.15.0-1081-azureUpgrade linux-image-gke-5.15Upgrade linux-image-gkeop-6.8Upgrade linux-image-intel-iotgUpgrade linux-image-5.15.0-1077-gcpUpgrade linux-image-6.8.0-1024-oemUpgrade linux-image-5.15.0-1073-intel-iotgUpgrade linux-image-oracle-64kUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-oem-20.04Upgrade linux-image-aws-lts-22.04Upgrade linux-image-6.11.0-1005-realtimeUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-5.15.0-1072-raspiUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-5.15.0-133-genericUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-5.15.0-1072-nvidiaUpgrade linux-image-5.15.0-1021-nvidia-tegra-igx-rtUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-awsUpgrade linux-image-oem-22.04dUpgrade linux-image-5.15.0-1074-ibmUpgrade linux-image-azure-fdeUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1014-azure-nvidiaUpgrade linux-image-5.15.0-133-lowlatency-64kUpgrade linux-image-oem-22.04cUpgrade linux-image-6.8.0-1028-raspiUpgrade linux-image-6.8.0-1025-azureUpgrade linux-image-generic-64kUpgrade linux-image-raspi-nolpaeUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-6.11.0-1008-raspiUpgrade linux-image-5.15.0-1072-nvidia-lowlatencyUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-6.11.0-1009-azure-fdeUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-realtimeUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.8.0-57-genericUpgrade linux-image-raspiUpgrade linux-image-5.15.0-1075-oracleUpgrade linux-image-genericUpgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-56-lowlatency-64kUpgrade linux-image-5.15.0-134-generic-64kUpgrade linux-image-5.15.0-133-generic-64kUpgrade linux-image-5.15.0-1070-ibmUpgrade linux-image-azureUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-6.8.0-1008-gkeopUpgrade linux-image-6.8.0-1022-ibmUpgrade linux-image-6.8.0-1022-oracle-64kUpgrade linux-image-6.8.0-1022-oracleUpgrade linux-image-6.8.0-56-lowlatencyUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-6.11.0-1009-awsUpgrade linux-image-aws-lts-24.04Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-oem-22.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-6.11.0-1010-lowlatencyUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-6.11.0-1009-azureUpgrade linux-image-nvidia-tegraUpgrade linux-image-6.8.0-1025-azure-fdeUpgrade linux-image-5.15.0-1033-nvidia-tegraUpgrade linux-image-6.8.0-1025-awsUpgrade linux-image-6.8.0-1021-gkeUpgrade linux-image-5.15.0-1044-xilinx-zynqmpUpgrade linux-image-oem-20.04cUpgrade linux-image-6.11.0-1015-oemUpgrade linux-image-nvidia-6.8Upgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-5.15.0-133-generic-lpaeUpgrade linux-image-gkeop-5.15Upgrade linux-image-6.8.0-2023-raspi-realtimeUpgrade linux-image-6.8.0-56-generic-64kUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.8.1-1018-realtime | Feb 20, 2025 | Oct 21, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Oct 21, 2024 |
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