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CVE-2021-4002 A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of…
Description
A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| kernel | Versions not published |
References
- bugzilla.redhat.com bugzilla.redhat.com
- www.openwall.com www.openwall.com
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- [debian-lts-announce] 20220309 [SECURITY] [DLA 2940-1] linux security update lists.debian.org
- [debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update lists.debian.org
- DSA-5096 www.debian.org
- www.oracle.com www.oracle.com
Timeline
- Published
- Last modified
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