In the Linux kernel, the following vulnerability has been resolved:
fs/proc: do_task_stat: use sig->stats_lock to gather the threads/children stats
lock_task_sighand() can trigger a hard lockup. If NR_CPUS threads call do_task_stat() at the same time and the process has NR_THREADS, it will spin with irqs disabled O(NR_CPUS * NR_THREADS) time.
Change do_task_stat() to use sig->stats_lock to gather the statistics outside of ->siglock protected section, in the likely case this code will run lockless.
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 |
|---|---|---|---|---|
| Alma_linux | — | Upgrade perfUpgrade kernel-debug-modules-extraUpgrade kernel-rt-debugUpgrade kernel-zfcpdump-coreUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-develUpgrade kernel-rt-kvmUpgrade kernel-rt-debug-coreUpgrade kernel-zfcpdump-modulesUpgrade kernel-tools-libsUpgrade kernel-rt-modulesUpgrade kernel-tools-libs-develUpgrade kernel-rt-develUpgrade kernel-rtUpgrade kernel-rt-modules-extraUpgrade kernel-docUpgrade kernel-zfcpdump-develUpgrade kernel-debug-develUpgrade kernel-zfcpdumpUpgrade kernel-debugUpgrade kernel-rt-coreUpgrade kernelUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-headersUpgrade kernel-cross-headersUpgrade kernel-abi-stablelistsUpgrade kernel-rt-debug-develUpgrade python3-perfUpgrade kernel-debug-coreUpgrade kernel-coreUpgrade kernel-rt-debug-modulesUpgrade kernel-modulesUpgrade kernel-debug-modulesUpgrade kernel-modules-extraUpgrade kernel-rt-debug-kvmUpgrade kernel-rt-debug-modules-extra | Aug 12, 2024 | Apr 3, 2024 |
| Amazon Linux Ami 2 | — | Upgrade python-perfUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernelUpgrade python-perf-debuginfoUpgrade perf-debuginfoUpgrade kernel-livepatch-5.15.184-125.190Upgrade kernel-tools-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-debuginfoUpgrade kernel-tools-develUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-debuginfo-common-aarch64Upgrade perfUpgrade kernel-develUpgrade kernel-livepatch-5.10.237-230.949 | May 30, 2025 | Apr 3, 2024 |
| Amazon_linux_2023 | — | Upgrade kernel-tools-debuginfoUpgrade perf-debuginfoUpgrade kernel-headersUpgrade kernel-develUpgrade kernel-debuginfoUpgrade perfUpgrade kernel-libbpfUpgrade kernel-livepatch-6.1.82-99.168Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-toolsUpgrade kernel-modules-extraUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-libbpf-develUpgrade kernel-modules-extra-commonUpgrade python3-perfUpgrade kernel-libbpf-staticUpgrade python3-perf-debuginfoUpgrade bpftoolUpgrade kernelUpgrade kernel-tools-devel | Feb 17, 2025 | Apr 3, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Apr 3, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernelUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernel-abi-stablelists | Jul 16, 2024 | Apr 3, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel | Jun 26, 2024 | Apr 3, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade kernelUpgrade python3-perfUpgrade bpftoolUpgrade kernel-tools-libs | Oct 8, 2024 | Apr 3, 2024 |
| Huawei Euleros 2_0_sp8 | — | Upgrade bpftoolUpgrade python-perfUpgrade perfUpgrade kernel-develUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernelUpgrade kernel-headersUpgrade python3-perf | Jul 23, 2024 | Apr 3, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade kernelUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade python3-perf | Jul 17, 2024 | Apr 3, 2024 |
| Oracle_linux | — | Upgrade kernel-uekUpgrade kernel | Aug 16, 2024 | Apr 3, 2024 |
| Redhat_linux | — | No solution existsUpgrade kernelUpgrade kernel-rt | Aug 12, 2024 | Apr 3, 2024 |
| Rocky_linux | — | Upgrade kernel-tools-debuginfoUpgrade perfUpgrade python3-perf-debuginfoUpgrade kernel-modules-extraUpgrade bpftool-debuginfoUpgrade kernel-debug-modulesUpgrade kernel-rt-debuginfo-common-x86_64Upgrade python3-perfUpgrade kernel-coreUpgrade kernel-debug-coreUpgrade kernel-debug-debuginfoUpgrade kernel-headersUpgrade kernel-rt-debug-kvmUpgrade kernel-rt-kvmUpgrade kernel-rt-debug-debuginfoUpgrade kernel-rt-debug-modules-extraUpgrade kernel-rt-debug-coreUpgrade bpftoolUpgrade kernel-rt-debug-modulesUpgrade kernel-develUpgrade kernel-rt-develUpgrade kernel-debuginfoUpgrade kernel-rt-debug-develUpgrade kernel-modulesUpgrade kernel-rt-coreUpgrade kernel-debug-develUpgrade kernel-tools-libsUpgrade kernel-rt-debugUpgrade kernel-debugUpgrade kernel-rt-modules-extraUpgrade kernel-rt-modulesUpgrade kernel-toolsUpgrade kernel-tools-libs-develUpgrade kernel-cross-headersUpgrade kernel-debug-modules-extraUpgrade kernel-rtUpgrade perf-debuginfoUpgrade kernel-rt-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel | Aug 22, 2024 | Apr 3, 2024 |
| Ubuntu | — | Upgrade linux-image-5.15.0-144-genericUpgrade linux-image-nvidiaUpgrade linux-image-virtualUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-5.15.0-144-lowlatency-64kUpgrade linux-image-generic-5.15Upgrade linux-image-5.15.0-1085-gkeUpgrade linux-image-oracleUpgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-lowlatency-64kUpgrade linux-image-fipsUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-fips-5.15Upgrade linux-image-gkeopUpgrade linux-image-5.15.0-1041-nvidia-tegraUpgrade linux-image-oem-20.04dUpgrade linux-image-5.15.0-1082-nvidiaUpgrade linux-image-aws-lts-22.04Upgrade linux-image-aws-64k-5.15Upgrade linux-image-azure-fipsUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-5.15.0-144-fipsUpgrade linux-image-generic-lpaeUpgrade linux-image-generic-64kUpgrade linux-image-gke-5.15Upgrade linux-image-5.15.0-1094-azure-fipsUpgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-5.15.0-1083-intel-iotgUpgrade linux-image-5.15.0-1088-awsUpgrade linux-image-ibmUpgrade linux-image-nvidia-tegraUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-5.15.0-1088-aws-64kUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-oem-20.04bUpgrade linux-image-5.15.0-144-lowlatencyUpgrade linux-image-5.15.0-1081-intel-iot-realtimeUpgrade linux-image-intelUpgrade linux-image-5.15.0-1052-xilinx-zynqmpUpgrade linux-image-intel-iotg-5.15Upgrade linux-image-5.15.0-1094-azureUpgrade linux-image-5.15.0-1041-nvidia-tegra-rtUpgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-azure-lts-22.04Upgrade linux-image-gcpUpgrade linux-image-lowlatencyUpgrade linux-image-genericUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-raspi-nolpaeUpgrade linux-image-5.15.0-144-generic-lpaeUpgrade linux-image-5.15.0-1080-ibmUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-kvm-5.15Upgrade linux-image-azure-fips-5.15Upgrade linux-image-aws-fips-5.15Upgrade linux-image-lowlatency-5.15Upgrade linux-image-gkeop-5.15Upgrade linux-image-oracle-5.15Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-5.15.0-1084-kvmUpgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-virtual-5.15Upgrade linux-image-ibm-5.15Upgrade linux-image-nvidia-tegra-igxUpgrade linux-image-5.15.0-1088-aws-fipsUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-aws-fipsUpgrade linux-image-azure-5.15Upgrade linux-image-awsUpgrade linux-image-realtimeUpgrade linux-image-5.15.0-1030-nvidia-tegra-igx-rtUpgrade linux-image-gcp-fipsUpgrade linux-image-gkeUpgrade linux-image-5.15.0-144-generic-64kUpgrade linux-image-azure-cvmUpgrade linux-image-intel-iotgUpgrade linux-image-generic-64k-5.15Upgrade linux-image-oem-20.04cUpgrade linux-image-5.15.0-1087-gcp-fipsUpgrade linux-image-aws-5.15Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-5.15.0-1082-nvidia-lowlatencyUpgrade linux-image-raspiUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-5.15.0-1088-realtimeUpgrade linux-image-5.15.0-1085-oracleUpgrade linux-image-5.15.0-1087-gcpUpgrade linux-image-gcp-5.15Upgrade linux-image-raspi-5.15Upgrade linux-image-kvmUpgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-nvidia-5.15Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-oem-20.04Upgrade linux-image-5.15.0-1030-nvidia-tegra-igxUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-realtime-5.15Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-5.15.0-1083-raspiUpgrade linux-image-5.15.0-1070-gkeopUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-azure | Feb 11, 2025 | Apr 3, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 2, 2025 | Apr 3, 2024 |
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