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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
The pmd_none_or_trans_huge_or_clear_bad function in include/asm-generic/pgtable.h in the Linux kernel before 3.13 on NUMA systems does not properly determine whether a Page Middle Directory (PMD) entry is a transparent huge-table entry, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted MADV_WILLNEED madvise system call that leverages the absence of a page-table lock.
Evaluator Description
CWE-476: NULL Pointer Dereference
Metrics
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CVE Modified by Red Hat, Inc.5/13/2024 11:23:01 PM
Action
Type
Old Value
New Value
Modified Analysis by NIST12/22/2023 3:17:47 PM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.9 up to (excluding) 3.10.76
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.11 up to (excluding) 3.12.43
Removed
CPE Configuration
OR
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:numa_systems:* versions up to (including) 3.12.9
Changed
Reference Type
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ee53664bda169f519ce3c6a22d378f0b946c8178 No Types Assigned
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ee53664bda169f519ce3c6a22d378f0b946c8178 Broken Link
Changed
Reference Type
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html No Types Assigned
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html Third Party Advisory
Changed
Reference Type
http://rhn.redhat.com/errata/RHSA-2015-0290.html No Types Assigned
http://rhn.redhat.com/errata/RHSA-2015-0290.html Third Party Advisory, VDB Entry
Changed
Reference Type
http://rhn.redhat.com/errata/RHSA-2015-0694.html No Types Assigned
http://rhn.redhat.com/errata/RHSA-2015-0694.html Third Party Advisory
Changed
Reference Type
https://bugzilla.redhat.com/show_bug.cgi?id=1198457 No Types Assigned
A NULL pointer dereference flaw was found in the way the Linux kernel's madvise MADV_WILLNEED functionality handled page table locking. A local, unprivileged user could use this flaw to crash the system.
The pmd_none_or_trans_huge_or_clear_bad function in include/asm-generic/pgtable.h in the Linux kernel before 3.13 on NUMA systems does not properly determine whether a Page Middle Directory (PMD) entry is a transparent huge-table entry, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted MADV_WILLNEED madvise system call that leverages the absence of a page-table lock.
The pmd_none_or_trans_huge_or_clear_bad function in include/asm-generic/pgtable.h in the Linux kernel before 3.13 on NUMA systems does not properly determine whether a Page Middle Directory (PMD) entry is a transparent huge-table entry, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted MADV_WILLNEED madvise system call that leverages the absence of a page-table lock.
A NULL pointer dereference flaw was found in the way the Linux kernel's madvise MADV_WILLNEED functionality handled page table locking. A local, unprivileged user could use this flaw to crash the system.
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