Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: powerpc/powernv: Added a null pointer check in opaleventinit. kasprintf returns a pointer to dynamically allocated memory; this pointer may be NULL in case of failure...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/kprobes: Fixed a null pointer reference in archpreparekprobe I found a null pointer reference in archpreparekprobe: echo 'p cmdlineprocshow' kprobeevents echo 'p cmdlineprocshow+16' kprobeevents The kernel attempted to re...

Astra Linux – Vulnerability in Linux

The file arch/powerpc/kvm/book3srtas.c in the Linux kernel, as of version 5.13.5 on the PowerPC platform, allows KVM guest OS users to cause memory corruption in the host OS through rtasargs.nargs, also known as CID-f62f3c20647e...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: PowerPC: Do not attempt to copy PPR for tasks with NULL pt regs. PowerPC sets up PFKTHREAD and PFIOWORKER with a NULL pt regs, which, according to my arguably very brief checking, is not commonly done for other architectures. Thi...

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 paprscm probe is called. The panic occurs as follows and is only observe...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/tm: Fixed corruption in user space r13. The commit cf13435b730a “powerpc/tm: Fixed corruption in user space r13” fixes a problem in treclaim, where a SLB miss can occur on threadstruct-ckpt regs, when SCRATCH0 is active a...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fixed the issue where the variable &phb-ioresource was used after calling deviceunregister&hostbridge-dev. However, the unregister operation might have freed phb, since pcibiosfreecontrollerdeferred is the releas...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/secvar: A refcount leak has been fixed in formatshow. A refcount leak occurs when formatshow returns an error in multiple cases. Unified management of ofnodeput can fix this issue...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/64s: Do not use DSISR for SLB faults. Since commit 46ddcb3950a2 “powerpc/mm: Show if a bad page fault on data is read or write”, we use pagefaultiswriteregs-dsisr in badpagefault to determine whether the fault is for a re...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: powerpc/fslrio: The refcount leak in fslriosetup has been fixed. ofparsephandle returns a node pointer with a refcount incremented; we should use ofnodeput on it when there is no longer a need for it. Add the missing ofnodeput...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: Keep MSRRI set when calling RTAS RTAS runs in real mode MSRDR and MSRIR unset and in 32-bit big endian mode MSRSF,LE unset. The change in MSR is done in enterrtas in a relatively complex way, since the MSR value cou...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: powerpc/paprscm: Fixed the issue where elements of nvdimmeventsmap were leaking during calls to paprscmpmucheckevents, paprscmremove, and paprscmpmuregister. Additionally, during paprscmpmucheckevents, errors occurred when...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: powerpc/xive: Fixed the refcount leak in xivespaprinit. offindcompatiblenode returns a node pointer with a refcount incremented; we should use ofnodeput on it after processing. Added ofnodeput to prevent the refcount leak...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Protection against accessing NULL pt regs in bpfgettaskstack The taskptregs function can return NULL on the powerpc architecture for kernel threads. This NULL value is then used in bpfgetstack to check for the user mode...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: KVM: PPC: Book3S HV: Prevent UAF in kvmspaprtceattachiommugroup It was reported that there might be a use-after-free UAF in the kvmspaprtceattachiommugroup function. The function looks up stt from tablefd, but then continues to u...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and 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 – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: Fix lockup on kernel exec fault The powerpc kernel is not prepared to handle exec faults from the kernel. In particular, the function isexecfault will return ‘false’ when an exec fault is encountered by the kernel,...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: Avoid device tree lookups in rtasosterm. rtasosterm is called during panic. Its behavior depends on several conditions in the /rtas node of the device tree; traversing these nodes involves locking and changes to loc...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: powerpc/lib: Validate size for vector operations Some parts of the fp/vmx code in sstep.c assume a certain maximum size for the instructions being emulated. However, the size of these operations is determined separately in the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

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