CVE-2026-46182

A flaw was found in the Linux kernel, specifically within the pseries/papr-hvpipe module. This vulnerability could allow a local user to gain access to uninitialized kernel stack memory. The issue arises because certain padding bytes in a data structure are not cleared before being sent to...

UBUNTU-CVE-2026-46182

In the Linux kernel, the following vulnerability has been resolved: pseries/papr-hvpipe: Prevent kernel stack memory leak to userspace The hdr variable is allocated on the stack and only hdr.version and hdr.flags are initialized explicitly. Because the struct paprhvpipehdr contains reserved paddi...

CVE-2026-46182

The CVE describes a Linux kernel issue in the pseries/papr-hvpipe path where a stack-allocated hdr structure is only partially initialized (hdr.version, hdr.flags). Because papr_hvpipe_hdr includes reserved padding (reserved[3], reserved2[40]), uninitialized padding bytes could be exposed to user...

CVE-2026-46182

In the Linux kernel, the following vulnerability has been resolved: pseries/papr-hvpipe: Prevent kernel stack memory leak to userspace The hdr variable is allocated on the stack and only hdr.version and hdr.flags are initialized explicitly. Because the struct paprhvpipehdr contains reserved paddi...

CVE-2026-46118

In the Linux kernel, the following vulnerability has been resolved: pseries/papr-hvpipe: Fix null ptr deref in paprhvpipedevcreatehandle commit 6d3789d347a7 "papr-hvpipe: convert paprhvpipedevcreatehandle to FDPREPARE", changed the create handle to FDPREPARE, but it caused kernel null-ptr-deref...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from a memory leak in the kernel stack within pseries papr-hvpipe, allowing uninitialized bytes to be leaked...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from a null pointer dereferencing in the paprhvpipedevcreatehandle function within pseries papr-hvpipe...

Astra Linux - уязвимость в linux-6.1

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries/vas: Added a close callback in the vasvmops structure. The VMA address is saved in the VAS window structure when the paste address is mapped. This VMA address is used during migration to unmap the paste address if...

Astra Linux - уязвимость в linux, linux-5.10, linux-5.15, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Enforce hcall result buffer validity and size. The plparhcall, plparhcall9, and related functions expect callers to provide valid result buffers of a certain minimum size. Currently, this is communicated only...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries/iommu: Do not unset the “window” if it was never set. On pSeries, when a user attempts to use the same vfio container used by different iommu groups, the spaprtcesetwindow function returns -EPERM. The subsequent...

Astra Linux - уязвимость в linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: powerpc/pseries/iommu: The IOMMU table is not initialized for kdump over SR-IOV. When the kdump kernel attempts to copy dump data using SR-IOV, LPAR panics due to a NULL pointer exception: - The kernel attempted to read user...

Astra Linux - уязвимость в linux-6.1

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries/iommu: LPAR panics during boot up with a frozen PE During LPAR bootup, the partition firmware provides the Open Firmware property “ibm,dma-window” for the PE. This property is provided on the PCI bus to which the ...

Astra Linux - уязвимость в linux-5.10, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fixed a potential memory leak in paprgetattr. The buffer is allocated in paprgetattr, and the krealloc call for buf could fail. In the event of a failure, we need to free the original buf...

Astra Linux - уязвимость в linux, linux-5.10, linux-5.15, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries/memhp: Fixed access beyond the end of the drmem array The dlparmemoryremovebyindex function may access beyond the bounds of the drmem lmb array when the LMB lookup fails to match an entry with the given DRC index...

Astra Linux - уязвимость в linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fixed the issue where kexec caused a crash when executing scv instructions. kexec on pseries disables AIL reloconexc, which is required for supporting scv instructions. This happens before other CPUs have been sh...

Astra Linux - уязвимость в linux, linux-5.10, linux-5.15, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: fix possible memory leak in ibmebusbusinit If deviceregister returns error in ibmebusbusinit, name of kobject which is allocated in devsetname called in deviceadd is leaked. As comment of deviceadd says, it shoul...

Astra Linux - уязвимость в linux-5.10, linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fixed dtlaccesslock to use a rwsemaphore instead of a rwsemaphore. The dtlaccesslock needs to be a rwsemaphore, a sleeping lock, because the code calls kmalloc while holding it, which can cause a sleep condition:...

Astra Linux - уязвимость в linux-5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fix use after free in removephbdynamic In removephbdynamic we use &phb-ioresource, after we've called deviceunregister&hostbridge-dev. But the unregister may have freed phb, because pcibiosfreecontrollerdeferred ...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013223)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013223 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: fix possible memory leak in ibmebusbusinit If deviceregister returns error in...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007549)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007549 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Whitelist dtl slub object for copying to userspace Reading the dispatch trace lo...