Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a memory leak in drivers/perf hisi hns3...

Unbreakable Enterprise kernel security update

5.15.0-207.156.6 - uek-container: Add advanced routing options Boris Ostrovsky Orabug: 36691279 - slub: use countpartialfreeapprox in slaboutofmemory Jianfeng Wang Orabug: 36655468 - slub: introduce countpartialfreeapprox Jianfeng Wang Orabug: 36655468 - Revert 'lockd: introduce safe async lock o...

SUSE CVE-2023-52835

In the Linux kernel, the following vulnerability has been resolved: perf/core: Bail out early if the request AUX area is out of bound When perf-record with a large AUX area, e.g 4GB, it fails with: perf record -C 0 -m ,4G -e armspe0// -- sleep 1 failed to mmap with 12 Cannot allocate memory and i...

CVE-2021-47543

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority for the following reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

CVE-2021-47543

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

CVE-2021-47543

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

CVE-2021-47545

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

CVE-2021-47545

CVE-2021-47545 is not a software-application vulnerability but a Linux kernel and toolchain issue uncovered in the perf subsystem. The connected OSV entry notes the vulnerability was addressed by fixing a memory-leak in perf_hpp_fmt: perf_hpp__column_unregister() would remove a list entry but fai...

CVE-2021-47545

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CVE-2021-47543

CVE-2021-47543 entry is rejected/not used; not an active vulnerability entry.

SUSE CVE-2023-52788

In the Linux kernel, the following vulnerability has been resolved: i915/perf: Fix NULL deref bugs with drmdbg calls When i915 perf interface is not available dereferencing it will lead to NULL dereferences. As returning -ENOTSUPP is pretty clear return when perf interface is not available...

SUSE CVE-2023-52797

In the Linux kernel, the following vulnerability has been resolved: drivers: perf: Check findfirstbit return value We must check the return value of findfirstbit before using the return value as an index array since it happens to overflow the array and then panic: 107.318430 Kernel BUG 1 107.3194...

SUSE CVE-2023-52839

In the Linux kernel, the following vulnerability has been resolved: drivers: perf: Do not broadcast to other cpus when starting a counter This command: $ perf record -e cycles:k -e instructions:k -c 10000 -m 64M dd if=/dev/zero of=/dev/null count=1000 gives rise to this kernel warning: 444.364395...

CVE-2023-52839

In the Linux kernel, the following vulnerability has been resolved: drivers: perf: Do not broadcast to other cpus when starting a counter This command: $ perf record -e cycles:k -e instructions:k -c 10000 -m 64M dd if=/dev/zero of=/dev/null count=1000 gives rise to this kernel warning: 444.364395...

CVE-2023-52835

In the Linux kernel, the following vulnerability has been resolved: perf/core: Bail out early if the request AUX area is out of bound When perf-record with a large AUX area, e.g 4GB, it fails with: perf record -C 0 -m ,4G -e armspe0// -- sleep 1 failed to mmap with 12 Cannot allocate memory and i...

CVE-2023-52797

In the Linux kernel, the following vulnerability has been resolved: drivers: perf: Check findfirstbit return value We must check the return value of findfirstbit before using the return value as an index array since it happens to overflow the array and then panic: 107.318430 Kernel BUG 1 107.3194...

CVE-2023-52788

In the Linux kernel, the following vulnerability has been resolved: i915/perf: Fix NULL deref bugs with drmdbg calls When i915 perf interface is not available dereferencing it will lead to NULL dereferences. As returning -ENOTSUPP is pretty clear return when perf interface is not available...

CVE-2023-52859

In the Linux kernel, the following vulnerability has been resolved: perf: hisi: Fix use-after-free when register pmu fails When we fail to register the uncore pmu, the pmu context may not been allocated. The error handing will call cpuhpstateremoveinstance to call uncore pmu offline callback, whi...

CVE-2023-52860

In the Linux kernel, the following vulnerability has been resolved: drivers/perf: hisi: use cpuhpstateremoveinstancenocalls for hisihns3pmu uninit process When tearing down a 'hisihns3' PMU, we mistakenly run the CPU hotplug callbacks after the device has been unregistered, leading to fireworks...

CVE-2023-52839

In the Linux kernel, the following vulnerability has been resolved: drivers: perf: Do not broadcast to other cpus when starting a counter This command: $ perf record -e cycles:k -e instructions:k -c 10000 -m 64M dd if=/dev/zero of=/dev/null count=1000 gives rise to this kernel warning: 444.364395...