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kernel: mm/pagewalk.c: walk_hugetlb_range function mishandles holes in hugetlb ranges causing information leak

🗓️ 13 Mar 2018 15:39:22Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 2 Views

The walk_hugetlb_range routine mishandles holes in hugetlb ranges, leaking kernel memory via mincore.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
0day.today		Linux Kernel 4.13 (Debian 9) - Local Privilege Escalation Exploit
20 Mar 201800:00
–zdt
0day.today		Linux Kernel - mincore() Heap Page Disclosure (PoC) Exploit
20 Mar 201800:00
–zdt
Gitee		Exploit for Out-of-bounds Write in Linux Linux_Kernel
13 Sep 202521:03
–gitee
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities affect Intel® Manycore Platform Software Stack (Intel® MPSS) for Linux and Windows
25 Feb 201920:40
–ibm
Amazon		Important: kernel
21 Dec 201700:00
–amazon
Tenable Nessus		Amazon Linux AMI : kernel (ALAS-2017-937) (Dirty COW)
26 Dec 201700:00
–nessus
Tenable Nessus		EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1538)
14 May 201900:00
–nessus
Tenable Nessus		Fedora 25 : kernel (2017-905bb449bc)
4 Dec 201700:00
–nessus
Tenable Nessus		Fedora 27 : kernel (2017-92a0ae09aa)
15 Jan 201800:00
–nessus
Tenable Nessus		Fedora 26 : kernel (2017-f9f3d80442)
1 Dec 201700:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7aarch64kernel0:4.11.0-44.6.1.el7akernel-0:4.11.0-44.6.1.el7a.aarch64.rpm
Red Hat Enterprise Linux7ppc64lekernel0:4.11.0-44.6.1.el7akernel-0:4.11.0-44.6.1.el7a.ppc64le.rpm
Red Hat Enterprise Linux7anykernel-abi-whitelists0:4.11.0-44.6.1.el7a.noarchkernel-abi-whitelists-0:4.11.0-44.6.1.el7a.noarch.noarch.rpm
Red Hat Enterprise Linux7ppc64lekernel-bootwrapper0:4.11.0-44.6.1.el7akernel-bootwrapper-0:4.11.0-44.6.1.el7a.ppc64le.rpm
Red Hat Enterprise Linux7aarch64kernel-debug0:4.11.0-44.6.1.el7akernel-debug-0:4.11.0-44.6.1.el7a.aarch64.rpm
Red Hat Enterprise Linux7ppc64lekernel-debug0:4.11.0-44.6.1.el7akernel-debug-0:4.11.0-44.6.1.el7a.ppc64le.rpm
Red Hat Enterprise Linux7aarch64kernel-debug-debuginfo0:4.11.0-44.6.1.el7akernel-debug-debuginfo-0:4.11.0-44.6.1.el7a.aarch64.rpm
Red Hat Enterprise Linux7ppc64lekernel-debug-debuginfo0:4.11.0-44.6.1.el7akernel-debug-debuginfo-0:4.11.0-44.6.1.el7a.ppc64le.rpm
Red Hat Enterprise Linux7aarch64kernel-debug-devel0:4.11.0-44.6.1.el7akernel-debug-devel-0:4.11.0-44.6.1.el7a.aarch64.rpm
Red Hat Enterprise Linux7ppc64lekernel-debug-devel0:4.11.0-44.6.1.el7akernel-debug-devel-0:4.11.0-44.6.1.el7a.ppc64le.rpm
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25 Jun 2026 10:51Current
7.1High risk
Vulners AI Score7.1
CVSS 22.1
CVSS 35.5
EPSS0.02084
CWE-200
hugepages holesmincore leakkernel memory exposurewalk hugepage range
2