CVE-2021-31916

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2021-31916
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-05-06 17:15:00 UTC
Updated2022-01-01 17:51:00 UTC
DescriptionAn out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.

Risk And Classification

Problem Types: CWE-787

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 9.0 All All All
Operating System Linux Linux Kernel All All All All
Operating System Redhat Enterprise Linux 7.0 All All All
Operating System Redhat Enterprise Linux 8.0 All All All

References

ReferenceSourceLinkTags
dm ioctl: fix out of bounds array access when no devices · torvalds/linux@4edbe1d · GitHub MISC github.com
[SECURITY] [DLA 2689-1] linux security update MLIST lists.debian.org
1946965 – (CVE-2021-31916) CVE-2021-31916 kernel: out of bounds array access in drivers/md/dm-ioctl.c MISC bugzilla.redhat.com
[SECURITY] [DLA 2690-1] linux-4.19 security update MLIST lists.debian.org
oss-sec: Linux Kernel: out of bounds array access in dm-ioctl.c MISC seclists.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159276 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9305)
  • 159277 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9306)
  • 159278 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9307)
  • 159280 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9308)
  • 159296 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9346)
  • 159492 Oracle Enterprise Linux Security Update for kernel (ELSA-2021-4356)
  • 178679 Debian Security Update for linux-4.19 (DLA 2690-1)
  • 178680 Debian Security Update for linux (DLA 2689-1)
  • 180153 Debian Security Update for linux (CVE-2021-31916)
  • 198365 Ubuntu Security Notification for Linux kernel (OEM) vulnerabilities (USN-4948-1)
  • 198398 Ubuntu Security Notification for Linux kernel vulnerabilities (USN-4979-1)
  • 198401 Ubuntu Security Notification for Linux kernel vulnerabilities (USN-4982-1)
  • 198403 Ubuntu Security Notification for Linux kernel vulnerabilities (USN-4984-1)
  • 239816 Red Hat Update for kernel security (RHSA-2021:4356)
  • 239879 Red Hat Update for kernel-rt (RHSA-2021:4140)
  • 352366 Amazon Linux Security Advisory for kernel: ALAS-2021-1503
  • 352831 Amazon Linux Security Advisory for kernel: ALAC2012-2021-030
  • 352832 Amazon Linux Security Advisory for kmod-sfc: ALAC2012-2021-031
  • 352833 Amazon Linux Security Advisory for kmod-mlx5: ALAC2012-2021-032
  • 390223 Oracle Managed Virtualization (VM) Server for x86 Security Update for kernel (OVMSA-2021-0022)
  • 610372 Google Pixel Android October 2021 Security Patch Missing
  • 610381 Google Android November 2021 Security Patch Missing for Huawei EMUI
  • 670488 EulerOS Security Update for kernel (EulerOS-SA-2021-2246)
  • 670514 EulerOS Security Update for kernel (EulerOS-SA-2021-2272)
  • 670543 EulerOS Security Update for kernel (EulerOS-SA-2021-2301)
  • 670578 EulerOS Security Update for kernel (EulerOS-SA-2021-2336)
  • 670634 EulerOS Security Update for kernel (EulerOS-SA-2021-2392)
  • 671047 EulerOS Security Update for kernel (EulerOS-SA-2021-2588)
  • 751399 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:1501-1)
  • 751406 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3806-1)
  • 751424 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3848-1)
  • 751436 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3877-1)
  • 751437 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3876-1)
  • 751441 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3876-1)
  • 751451 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3935-1)
  • 751462 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3941-1)
  • 751473 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3969-1)
  • 751476 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3972-1)
  • 900096 CBL-Mariner Linux Security Update for kernel 5.10.52.1
  • 900304 CBL-Mariner Linux Security Update for kernel 5.10.57.1
  • 900319 CBL-Mariner Linux Security Update for kernel 5.10.60.1
  • 901545 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (6558-1)
  • 903632 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (4193)
  • 905761 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (4193-1)
  • 940265 AlmaLinux Security Update for kernel (ALSA-2021:4356)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report