Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: powerpc/paprscm: Do not request stats with a stats buffer of size “0”. Sachin reported 1 that on a POWER-10 lpar, he is encountering a kernel panic when the vPMEM is used and the paprscm probe is called. The panic occurs as...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drivers/perf: Fixed the issue where the alidrwpmu driver failed to clear the interrupt status during interrupt processing. The alibabauncorepmu driver forgot to clear all interrupt statuses during interrupt handling. After the PM...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: perf/x86: Fixed NULL pointer access and potential loss of PEBS records When the intelpmudrainpebsicl function is called to drain PEBS records, the perfeventoverflow function might be called to process the last PEBS record. The...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: perf/smmuv3: Fixed the hotplug callback leak in armsmmupmuinit. armsmmupmuinit does not remove the callback added by cpuhpsetupstatemulti when platformdriverregister fails. The callback must be removed by cpuhpremovemultistate in...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: perf/x86: Fixed the potential issue with bad containerof in intelpmuhwconfig. The auto counter reload may involve a group of events, some of which are software-related. The software event related to the PMU is not equivalent t...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: perf: RISC-V: Remove PERFHESSTOPPED flag checking in riscvpmustart Since commit 096b52fd2bb4 “perf: RISC-V: throttle perf events”, the perfsampleeventtook function was added to report time spent in overflow interrupts. If the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: perf: RISCV: Fix for panic occurring in the pmu overflow handler 1 idx of int is not desired when setting bits in unsigned long overflowctrs; use BIT instead. This panic occurs when running ‘perf record -e branches’ on sophgo...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: nvdimm: The memory pointed to by ndpmu-pmu.attrgroups is allocated in the function registernvdimmpmu, and it is lost after the kfreendpmu call in the function unregisternvdimmpmu...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: powerpc/imc-pmu: The issue related to the use of mutexes in sections where IRQs are disabled has been fixed. The current imc-pmu code triggers a warning when CONFIGDEBUGATOMICSLEEP and CONFIGPROVELOCKING are enabled, while a...

CVE-2026-31782 perf/x86: Fix potential bad container_of in intel_pmu_hw_config

In the Linux kernel, the following vulnerability has been resolved: perf/x86: Fix potential bad containerof in intelpmuhwconfig Auto counter reload may have a group of events with software events present within it. The software event PMU isn't the x86hybridpmu and a containerof operation in...

CVE-2026-31528 perf: Make sure to use pmu_ctx->pmu for groups

In the Linux kernel, the following vulnerability has been resolved: perf: Make sure to use pmuctx-pmu for groups Oliver reported that x86pmudel ended up doing an out-of-bound memory access when groupschedin fails and needs to roll back. This should be handled by the transaction callbacks, but he...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the incorrect PMU context used by the perf event group, potentially leading to out-of-bound memor...

PT-2026-34433

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bound memory access can occur in the x86 pmu del function when group sched in fails and requires a rollback. This happens because the inherit function uses event-pmu to clone...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-010896)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010896 advisory. In the Linux kernel, the following vulnerability has been resolved: drivers/perf: hisi: use cpuhpstateremoveinstancenocalls for hisihns3pmu uninit process When teari...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011049)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011049 advisory. In the Linux kernel, the following vulnerability has been resolved: perf/smmuv3: Fix hotplug callback leak in armsmmupmuinit armsmmupmuinit won't remove the callback...

CVE-2026-23435

In the Linux kernel, the following vulnerability has been resolved: perf/x86: Move event pointer setup earlier in x86pmuenable A production AMD EPYC system crashed with a NULL pointer dereference in the PMU NMI handler: BUG: kernel NULL pointer dereference, address: 0000000000000198 RIP:...

CVE-2026-23435

In the Linux kernel, the following vulnerability has been resolved: perf/x86: Move event pointer setup earlier in x86pmuenable A production AMD EPYC system crashed with a NULL pointer dereference in the PMU NMI handler: BUG: kernel NULL pointer dereference, address: 0000000000000198 RIP:...

CVE-2026-23435

In the Linux kernel, the following vulnerability has been resolved: perf/x86: Move event pointer setup earlier in x86pmuenable A production AMD EPYC system crashed with a NULL pointer dereference in the PMU NMI handler: BUG: kernel NULL pointer dereference, address: 0000000000000198 RIP:...

CVE-2026-23435

The CVE-2026-23435 entries describe a Linux kernel PMU/X86 perf vulnerability that was resolved. The root cause was a commit that moved cpuc->events[idx] assignment out of x86_pmu_start() into step 2 of x86_pmu_enable(), after PERF_HES_ARCH checks. This could allow a path that calls pmu->st...

CVE-2026-23435 perf/x86: Move event pointer setup earlier in x86_pmu_enable()

In the Linux kernel, the following vulnerability has been resolved: perf/x86: Move event pointer setup earlier in x86pmuenable A production AMD EPYC system crashed with a NULL pointer dereference in the PMU NMI handler: BUG: kernel NULL pointer dereference, address: 0000000000000198 RIP:...