Linux kernel 安全漏洞

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 originates from a refcount leak in powerpc/secvar...

CVE-2021-47640: Out-of-bounds Write

In the Linux kernel, the following vulnerability has been resolved: powerpc/kasan: Fix early region not updated correctly The shadow's page table is not updated when PTERPNSHIFT is 24 and PAGESHIFT is 12. It not only causes false positives but also false negative as shown the following text. Fix ...

CVE-2022-49437: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: powerpc/xive: Fix refcount leak in xivespaprinit offindcompatiblenode returns a node pointer with refcount incremented, we should use ofnodeput on it when done. Add missing ofnodeput to avoid refcount leak...

CVE-2022-49432: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: powerpc/xics: fix refcount leak in icpopalinit The offindcompatiblenode function returns a node pointer with refcount incremented, use ofnodeput on it when done...

CVE-2022-49623: Out-of-bounds Read

In the Linux kernel, the following vulnerability has been resolved: powerpc/xive/spapr: correct bitmap allocation size kasan detects access beyond the end of the xibm-bitmap allocation: BUG: KASAN: slab-out-of-bounds in findfirstzerobit+0x40/0x140 Read of size 8 at addr c00000001d1d0118 by task...

CVE-2022-49439: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: powerpc/fslrio: Fix refcount leak in fslriosetup ofparsephandle returns a node pointer with refcount incremented, we should use ofnodeput on it when not need anymore. Add missing ofnodeput to avoid refcount leak...

CVE-2022-49440: Undefined Security Weakness

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...

CVE-2022-49067: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: powerpc: Fix virtaddrvalid for 64-bit Book3E & 32-bit mpe: On 64-bit Book3E vmalloc space starts at 0x8000000000000000. Because of the way pa works we have: pa0x8000000000000000 == 0, and therefore virttopfn0x8000000000000000 == ...

CVE-2022-49164: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: powerpc/tm: Fix more userspace r13 corruption Commit cf13435b730a "powerpc/tm: Fix userspace r13 corruption" fixes a problem in treclaim where a SLB miss can occur on the threadstruct-ckptregs while SCRATCH0 is live with the save...

CVE-2022-49113: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: powerpc/secvar: fix refcount leak in formatshow Refcount leak will happen when formatshow returns failure in multiple cases. Unified management of ofnodeput can fix this problem...

CVE-2022-49196: Use After Free

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 ...

CVE-2022-49431: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: powerpc/iommu: Add missing ofnodeput in iommuinitearlydart The devicenode pointer is returned by offindcompatiblenode with refcount incremented. We should use ofnodeput to avoid the refcount leak...

CVE-2022-49214: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: powerpc/64s: Don't 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 if the fault is for a read or...

CVE-2022-49436: Missing Release of Memory after Effective Lifetime

In the Linux kernel, the following vulnerability has been resolved: powerpc/paprscm: Fix leaking nvdimmeventsmap elements Right now 'char ' elements allocated for individual 'statid' in 'paprscmpriv.nvdimmeventsmap' during paprscmpmucheckevents, get leaked in paprscmremove and paprscmpmuregister,...

CVE-2022-49666: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: powerpc/memhotplug: Add addpages override for PPC With commit ffa0b64e3be5 "powerpc: Fix virtaddrvalid for 64-bit Book3E & 32-bit" the kernel now validate the addr against highmemory value. This results in the below BUGON with da...

Linux kernel 安全漏洞

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 originates from an addpages override in powerpc/memhotplug that causes BUGON...

Siemens SCALANCE Devices Out-of-bounds Write (CVE-2023-6129)

Issue summary: The POLY1305 MAC message authentication code implementation contains a bug that might corrupt the internal state of applications running on PowerPC CPU based platforms if the CPU provides vector instructions. Impact summary: If an attacker can influence whether the POLY1305 MAC...

TFTP Fetch

Fetch and execute an PPC payload from an TFTP server. Module Options msf use payload/cmd/linux/tftp/ppc/meterpreterreversetcp msf payloadmeterpreterreversetcp show actions ...actions... msf payloadmeterpreterreversetcp set ACTION msf payloadmeterpreterreversetcp show options ...show and set...

TFTP Fetch

Fetch and execute an PPC payload from an TFTP server. Module Options msf use payload/cmd/linux/tftp/ppc/meterpreterreversehttps msf payloadmeterpreterreversehttps show actions ...actions... msf payloadmeterpreterreversehttps set ACTION msf payloadmeterpreterreversehttps show options ...show and s...

USN-7277-1: Linux kernel vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM32 architecture; - ARM64 architecture; - PowerPC architecture; - RISC-V architecture; - S390 architecture; -...