In the Linux kernel, the following vulnerability has been resolved:
mm: hugetlb: avoid soft lockup when mprotect to large memory area
When calling mprotect() to a large hugetlb memory area in our customer's workload (~300GB hugetlb memory), soft lockup was observed:
watchdog: BUG: soft lockup - CPU#98 stuck for 23s! [t2_new_sysv:126916]
CPU: 98 PID: 126916 Comm: t2_new_sysv Kdump: loaded Not tainted 6.17-rc7 Hardware name: GIGACOMPUTING R2A3-T40-AAV1/Jefferson CIO, BIOS 5.4.4.1 07/15/2025 pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : mte_clear_page_tags+0x14/0x24 lr : mte_sync_tags+0x1c0/0x240 sp : ffff80003150bb80 x29: ffff80003150bb80 x28: ffff00739e9705a8 x27: 0000ffd2d6a00000 x26: 0000ff8e4bc00000 x25: 00e80046cde00f45 x24: 0000000000022458 x23: 0000000000000000 x22: 0000000000000004 x21: 000000011b380000 x20: ffff000000000000 x19: 000000011b379f40 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : ffffc875e0aa5e2c x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : fffffc01ce7a5c00 x4 : 00000000046cde00 x3 : fffffc0000000000 x2 : 0000000000000004 x1 : 0000000000000040 x0 : ffff0046cde7c000
Call trace: mte_clear_page_tags+0x14/0x24 set_huge_pte_at+0x25c/0x280 hugetlb_change_protection+0x220/0x430 change_protection+0x5c/0x8c mprotect_fixup+0x10c/0x294 do_mprotect_pkey.constprop.0+0x2e0/0x3d4 __arm64_sys_mprotect+0x24/0x44 invoke_syscall+0x50/0x160 el0_svc_common+0x48/0x144 do_el0_svc+0x30/0xe0 el0_svc+0x30/0xf0 el0t_64_sync_handler+0xc4/0x148 el0t_64_sync+0x1a4/0x1a8
Soft lockup is not triggered with THP or base page because there is cond_resched() called for each PMD size.
Although the soft lockup was triggered by MTE, it should be not MTE specific. The other processing which takes long time in the loop may trigger soft lockup too.
So add cond_resched() for hugetlb to avoid soft lockup.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-livepatch-5.10.247-246.989Upgrade kernel-tools-debuginfoUpgrade kernel-tools-develUpgrade kernel-livepatch-5.15.195-136.216Upgrade kernelUpgrade kernel-headersUpgrade python-perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade perf-debuginfoUpgrade python-perfUpgrade bpftool-debuginfoUpgrade kernel-develUpgrade perfUpgrade bpftoolUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-livepatch-6.1.156-177.286Upgrade kernel-modules-extra-commonUpgrade kernel-libbpf-develUpgrade python3-perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel6.12-tools-debuginfoUpgrade kernel6.12-toolsUpgrade python3-perfUpgrade perf6.12Upgrade bpftoolUpgrade python3-perf6.12-debuginfoUpgrade kernel6.12-libbpf-staticUpgrade kernel-livepatch-6.12.53-69.119Upgrade kernel6.12-debuginfoUpgrade kernel6.12-libbpf-develUpgrade kernelUpgrade kernel-tools-develUpgrade kernel-libbpf-staticUpgrade kernel6.12-headersUpgrade kernel6.12-develUpgrade kernel6.12-libbpfUpgrade kernel-develUpgrade kernel-toolsUpgrade perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade perfUpgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernel6.12-modules-extraUpgrade kernel6.12Upgrade kernel6.12-modules-extra-commonUpgrade python3-perf6.12Upgrade kernel-debuginfoUpgrade kernel6.12-libbpf-debuginfoUpgrade perf6.12-debuginfoUpgrade kernel6.12-tools-develUpgrade bpftool6.12-debuginfoUpgrade bpftool6.12Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-modules-extraUpgrade kernel-libbpf-debuginfoUpgrade kernel-libbpfUpgrade bpftool-debuginfoUpgrade kernel6.12-debuginfo-common-aarch64 | Dec 9, 2025 | Nov 12, 2025 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Nov 13, 2025 | Nov 13, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernelUpgrade bpftool | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernelUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade python3-perf | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade bpftoolUpgrade kernel-tools-libsUpgrade kernelUpgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernel-tools | Feb 3, 2026 | Feb 2, 2026 |
| Oracle_linux | — | Upgrade kernel-uek | Dec 15, 2025 | Nov 12, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Nov 12, 2025 |
| Ubuntu | — | Upgrade linux-image-aws-6.17Upgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-aws-lts-22.04Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-aws-6.8Upgrade linux-image-aws-64kUpgrade linux-image-aws-64k-6.8Upgrade linux-image-oem-20.04cUpgrade linux-image-xilinxUpgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-5.15.0-1097-oracleUpgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-6.8.0-106-genericUpgrade linux-image-6.8.0-106-fipsUpgrade linux-image-5.15.0-1095-nvidiaUpgrade linux-image-intelUpgrade linux-image-kvmUpgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-5.15.0-1096-gkeUpgrade linux-image-6.8.0-1050-awsUpgrade linux-image-generic-6.8Upgrade linux-image-ibm-classicUpgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-raspi-realtimeUpgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-oem-22.04dUpgrade linux-image-nvidia-5.15Upgrade linux-image-raspiUpgrade linux-image-xilinx-6.8Upgrade linux-image-aws-lts-24.04Upgrade linux-image-ibm-6.8Upgrade linux-image-generic-64kUpgrade linux-image-realtime-5.15Upgrade linux-image-realtime-6.8.1Upgrade linux-image-raspi-6.17Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-oracle-6.8Upgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-azureUpgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-azure-6.8Upgrade linux-image-5.15.0-1052-nvidia-tegra-rtUpgrade linux-image-5.15.0-1041-nvidia-tegra-igx-rtUpgrade linux-image-5.15.0-1095-nvidia-lowlatencyUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-raspi-5.15Upgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-virtual-5.15Upgrade linux-image-5.15.0-1100-aws-fipsUpgrade linux-image-oem-20.04Upgrade linux-image-oem-20.04dUpgrade linux-image-azure-lts-22.04Upgrade linux-image-azure-fipsUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-aws-fips-6.8Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-5.15.0-170-lowlatency-64kUpgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-5.15.0-1100-gcpUpgrade linux-image-gke-6.8Upgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-azure-5.15Upgrade linux-image-intel-iotgUpgrade linux-image-5.15.0-1083-gkeopUpgrade linux-image-azure-lts-24.04Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-azure-fips-6.8Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-virtualUpgrade linux-image-5.15.0-1095-intel-iotgUpgrade linux-image-oracle-64kUpgrade linux-image-realtime-6.17Upgrade linux-image-gcp-6.17Upgrade linux-image-gkeUpgrade linux-image-fips-5.15Upgrade linux-image-gcpUpgrade linux-image-virtual-6.17Upgrade linux-image-5.15.0-1100-awsUpgrade linux-image-gcp-64kUpgrade linux-image-gke-64k-6.8Upgrade linux-image-5.15.0-1100-aws-64kUpgrade linux-image-5.15.0-1109-azure-fipsUpgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-oem-6.17Upgrade linux-image-raspi-6.8Upgrade linux-image-5.15.0-1064-xilinx-zynqmpUpgrade linux-image-5.15.0-170-genericUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-gkeop-5.15Upgrade linux-image-5.15.0-1094-ibmUpgrade linux-image-nvidia-64kUpgrade linux-image-kvm-5.15Upgrade linux-image-oem-22.04cUpgrade linux-image-oracle-5.15Upgrade linux-image-virtual-hwe-20.04Upgrade linux-image-oem-22.04bUpgrade linux-image-5.15.0-1097-raspiUpgrade linux-image-fips-6.8Upgrade linux-image-gkeopUpgrade linux-image-nvidia-tegraUpgrade linux-image-5.15.0-1099-realtimeUpgrade linux-image-5.15.0-1110-azureUpgrade linux-image-oracleUpgrade linux-image-6.17.0-1008-azureUpgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-aws-5.15Upgrade linux-image-5.15.0-170-generic-lpaeUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-5.15.0-1052-nvidia-tegraUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-nvidia-6.8Upgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-5.15.0-1092-kvmUpgrade linux-image-lowlatencyUpgrade linux-image-generic-6.17Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-fipsUpgrade linux-image-oem-22.04Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-generic-64k-6.8Upgrade linux-image-generic-5.15Upgrade linux-image-awsUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-6.17.0-1011-oemUpgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-5.15.0-1109-azureUpgrade linux-image-aws-fipsUpgrade linux-image-6.8.0-1051-azureUpgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-5.15.0-1100-gcp-fipsUpgrade linux-image-oracle-64k-6.17Upgrade linux-image-oracle-6.17Upgrade linux-image-oem-22.04aUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-lowlatency-6.8Upgrade linux-image-ibm-5.15Upgrade linux-image-gke-64kUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-aws-fips-5.15Upgrade linux-image-aws-64k-6.17Upgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-6.17.0-14-genericUpgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-nvidiaUpgrade linux-image-intel-iotg-5.15Upgrade linux-image-ibmUpgrade linux-image-azure-fips-5.15Upgrade linux-image-azure-cvmUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-5.15.0-170-fipsUpgrade linux-image-gcp-6.8Upgrade linux-image-gke-5.15Upgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-6.17.0-1007-awsUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-lowlatency-5.15Upgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-generic-64k-5.15Upgrade linux-image-genericUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-lowlatency-64kUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-gcp-5.15Upgrade linux-image-azure-6.17Upgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-5.15.0-170-lowlatencyUpgrade linux-image-oem-20.04bUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-gcp-fipsUpgrade linux-image-gkeop-6.8Upgrade linux-image-generic-lpaeUpgrade linux-image-5.15.0-170-generic-64kUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-realtimeUpgrade linux-image-aws-64k-5.15Upgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-virtual-6.8Upgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-5.15.0-1092-intel-iot-realtimeUpgrade linux-image-5.15.0-1041-nvidia-tegra-igxUpgrade linux-image-raspi-nolpaeUpgrade linux-image-generic-64k-6.17Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-gcp-64k-6.17Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-6.8.0-1029-xilinx | Feb 13, 2026 | Feb 12, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Nov 12, 2025 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub