CVE-2021-44879

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Summary

CVECVE-2021-44879
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-02-14 12:15:15 UTC
Updated2026-10-14 12:17:16 UTC
DescriptionIn gc_data_segment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a move_data_page NULL pointer dereference.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Problem Types: CWE-476 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
2.0[email protected]Primary4.3AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:M/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified
ADP Siemens RUGGEDCOM RST2428P unaffected * custom Not specified
ADP Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 Family unaffected * custom Not specified
ADP Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 Family unaffected * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected V1.1 custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified

References

ReferenceSourceLinkTags
cert-portal.siemens.com/productcert/html/ssa-398330.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
[f2fs-dev] [PATCH 1/3] f2fs: fix to do sanity check on inode type during garbage collection af854a3a-2127-422b-91ae-364da2661108 lore.kernel.org
cert-portal.siemens.com/productcert/html/ssa-831302.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
[SECURITY] [DLA 3711-1] linux-5.10 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
cert-portal.siemens.com/productcert/html/ssa-613116.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
cert-portal.siemens.com/productcert/html/ssa-794697.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.3 af854a3a-2127-422b-91ae-364da2661108 cdn.kernel.org Mailing List, Vendor Advisory
215231 – kernel NULL pointer dereference triggered in folio_mark_dirty() when mount and operate on a crafted f2fs image af854a3a-2127-422b-91ae-364da2661108 bugzilla.kernel.org Exploit, Issue Tracking, Vendor Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Mailing List, Patch, Vendor Advisory
lists.debian.org/debian-lts-announce/2024/01/msg00004.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
[f2fs-dev] [PATCH 1/3] f2fs: fix to do sanity check on inode type during garbage collection MITRE lore.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 184331 Debian Security Update for linux (CVE-2021-44879)
  • 198672 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-5302-1)
  • 198745 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5383-1)
  • 200171 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6681-1)
  • 200183 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6681-2)
  • 200192 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6681-3)
  • 200203 Ubuntu Security Notification for Linux kernel (AWS) Vulnerabilities (USN-6681-4)
  • 200221 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-6716-1)
  • 377124 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2022:0029)
  • 377181 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX2-SA-2022:0022)
  • 6000419 Debian Security Update for linux (DSA 5594-1)
  • 6000428 Debian Security Update for linux-5.10 (DLA 3711-1)
  • 6000429 Debian Security Update for linux (DLA 3710-1)
  • 671703 EulerOS Security Update for kernel (EulerOS-SA-2022-1735)
  • 671804 EulerOS Security Update for kernel (EulerOS-SA-2022-1844)
  • 751831 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0768-1)
  • 751832 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0765-1)
  • 751833 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0757-1)
  • 751835 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0767-1)
  • 751836 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0759-1)
  • 751838 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0766-1)
  • 751851 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2022:0768-1)
  • 751952 OpenSUSE Security Update for Linux Kernel (openSUSE-SU-2022:1039-1)
  • 751956 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2022:1037-1)
  • 752016 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1039-1)
  • 752370 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2520-1)
  • 753148 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2615-1)
  • 753348 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1038-1)
  • 753373 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1257-1)
  • 753422 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1037-1)
  • 900712 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (8569)
  • 900904 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (8577-1)
  • 901357 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (8569-1)
  • 905879 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (8569-2)
  • 906279 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (8577-2)

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