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In the Linux kernel, the following vulnerability has been resolved:
ARM: 9317/1: kexec: Make smp stop calls asynchronous
If a panic is triggered by a hrtimer interrupt all online cpus will be notified and set offline. But as highlighted by commit 19dbdcb8039c ("smp: Warn on function calls from softirq context") this call should not be made synchronous with disabled interrupts:
softdog: Initiating panic Kernel panic - not syncing: Software Watchdog Timer expired WARNING: CPU: 1 PID: 0 at kernel/smp.c:753 smp_call_function_many_cond unwind_backtrace: show_stack dump_stack_lvl __warn warn_slowpath_fmt smp_call_function_many_cond smp_call_function crash_smp_send_stop.part.0 machine_crash_shutdown __crash_kexec panic softdog_fire __hrtimer_run_queues hrtimer_interrupt
Make the smp call for machine_crash_nonpanic_core() asynchronous.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Oct 24, 2025 | Oct 24, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade python3-perfUpgrade bpftoolUpgrade kernelUpgrade kernel-tools-libs | Mar 17, 2026 | Mar 16, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade python3-perfUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernelUpgrade kernel-abi-stablelists | Mar 10, 2026 | Mar 10, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Oct 22, 2025 |
| Ubuntu | — | Upgrade linux-fipsUpgrade linux-oracle-5.15Upgrade linuxUpgrade linux-aws-fipsUpgrade linux-azure-fde-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-gkeopUpgrade linux-nvidia-tegraUpgrade linux-ibm-5.15Upgrade linux-azureUpgrade linux-nvidiaUpgrade linux-azure-5.15Upgrade linux-nvidia-tegra-igxUpgrade linux-lowlatencyUpgrade linux-ibmUpgrade linux-kvmUpgrade linux-oracleUpgrade linux-hwe-5.15Upgrade linux-raspiUpgrade linux-gkeUpgrade linux-awsUpgrade linux-azure-fdeUpgrade linux-intel-iot-realtimeUpgrade linux-gcp-5.15Upgrade linux-nvidia-tegra-5.15Upgrade linux-bluefieldUpgrade linux-aws-5.15Upgrade linux-intel-iotg-5.15Upgrade linux-riscv-5.15Upgrade linux-gcpUpgrade linux-lowlatency-hwe-5.15Upgrade linux-gcp-fipsUpgrade linux-intel-iotgUpgrade linux-realtime | Oct 28, 2025 | Oct 24, 2025 |
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