PT-2025-53969

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.0.0-rc1home lulu 2452 lulu7 vhost+ Description The Linux kernel contains a flaw within the vhost vdpa component related to unmapping large memory regions. During testing with vIOMMU, a crash could occur when a...

多款Qualcomm产品安全漏洞

The Qualcomm QCA6574AU and others are products of Qualcomm Incorporated, U.S.A. The QCA6574AU is a central processing unit CPU product.The SDX24 is a modem.The SDX55 is a modem.The QCA6574AU is a central processing unit CPU product.The SDX24 is a modem.The SDX55 is a modem. A security vulnerabili...

QEMU 缓冲区错误漏洞

QEMU Quick Emulator is a set of simulation processor software by Fabrice Bellard, a French individual developer. The software is fast and cross-platform. QEMU suffers from a buffer error vulnerability that stems from an uninitialized memory unmapping in pvrdmaringinit...

PT-2024-11131 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A vulnerability in the Linux kernel has been resolved, specifically in the mt76 module for the mt7915 device. The issue was related to the tx skb dma unmap, where the first pointer in...

DEBIAN-CVE-2021-26932

An issue was discovered in the Linux kernel 3.2 through 5.10.16, as used by Xen. Grant mapping operations often occur in batch hypercalls, where a number of operations are done in a single hypercall, the success or failure of each one is reported to the backend driver, and the backend driver then...

The rbd block device driver in drivers/block/rbd.c in the Linux kernel through 5.8.9 used incomplete permission checking for access to rbd devices which could be leveraged by local attackers to map or unmap rbd block devices aka CID-f44d04e696fe.

...

Apple iOS - Kernel Stack Memory Disclosure due to Failure to Check copyin Return Value

Apple iOS - Kernel Stack Memory Disclosure due to Failure to Check copyin Return Value Here's a code snippet from sleh.c with the second level exception handler for undefined instruction exceptions: static void handleuncategorizedarmsavedstatet state, booleant instrLen2 exceptiontypet exception =...

UBUNTU-CVE-2018-17182

An issue was discovered in the Linux kernel through 4.18.8. The vmacacheflushall function in mm/vmacache.c mishandles sequence number overflows. An attacker can trigger a use-after-free and possibly gain privileges via certain thread creation, map, unmap, invalidation, and dereference operations...

Fedora 27 : xen (2017-333ea49a63)

xen: various flaws 1490884 Missing NUMA node parameter verification XSA-231, CVE-2017-14316 Missing check for grant table XSA-232, CVE-2017-14318 cxenstored: Race in domain cleanup XSA-233, CVE-2017-14317 insufficient grant unmapping checks for x86 PV guests XSA-234, CVE-2017-14319 Note that...

Fedora 26 : xen (2017-e399a9008c)

xen: various flaws 1490884 Missing NUMA node parameter verification XSA-231, CVE-2017-14316 Missing check for grant table XSA-232, CVE-2017-14318 cxenstored: Race in domain cleanup XSA-233, CVE-2017-14317 insufficient grant unmapping checks for x86 PV guests XSA-234, CVE-2017-14319 ---- update to...

Citrix XenServer Multiple Security Updates (CTX227185)

A number of security vulnerabilities have been identified in Citrix XenServer that may allow a malicious administrator of a guest VM to compromise the host. SPDX-FileCopyrightText: 2017 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the...

ALPINE-CVE-2017-14319

A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence ...

DEBIAN-CVE-2017-14319

A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence ...

UBUNTU-CVE-2017-14319

A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence ...

CVE-2017-14319

CVE-2017-14319 is a Xen hypervisor vulnerability (affecting up to 4.9.x) in grant unmapping for x86 PV guests. The issue: when removing/replacing a grant mapping, the x86 PV path did not ensure page table entries remained in sync with other accounting, and did not account for the presence of the ...

CVE-2017-14319

A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence ...

UBUNTU-CVE-2017-10920

The grant-table feature in Xen through 4.8.x mishandles a GNTMAPdevicemap and GNTMAPhostmap mapping, when followed by only a GNTMAPhostmap unmapping, which allows guest OS users to cause a denial of service count mismanagement and memory corruption or obtain privileged host OS access, aka XSA-224...

ALPINE-CVE-2017-10920

The grant-table feature in Xen through 4.8.x mishandles a GNTMAPdevicemap and GNTMAPhostmap mapping, when followed by only a GNTMAPhostmap unmapping, which allows guest OS users to cause a denial of service count mismanagement and memory corruption or obtain privileged host OS access, aka XSA-224...

Races in the grant table unmap code

ISSUE DESCRIPTION We have discovered two bugs in the code unmapping grant references. When a grant had been mapped twice by a backend domain, and then unmapped by two concurrent unmap calls, the frontend may be informed that the page had no further mappings when the first call completed rather th...

Kernel: mm: try_to_unmap_cluster() should lock_page() before mlocking

It was found that the trytounmapcluster function in the Linux kernel's Memory Managment subsystem did not properly handle page locking in certain cases, which could potentially trigger the BUGON macro in the mlockvmapage function. A local, unprivileged user could use this flaw to crash the system...