CVE-2021-4149
Summary
| CVE | CVE-2021-4149 |
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| State | PUBLIC |
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| Assigner | [email protected] |
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| Source Priority | CVE Program / NVD first with legacy fallback |
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| Published | 2022-03-23 20:15:00 UTC |
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| Updated | 2023-02-01 15:53:00 UTC |
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| Description | A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem. |
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NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|
| LKML: Hao Sun: WARNING: lock held when returning to user space in __btrfs_tree_lock |
MISC |
lkml.org |
|
| LKML: Greg Kroah-Hartman: [PATCH 5.14 030/151] btrfs: unlock newly allocated extent buffer after error |
MISC |
lkml.org |
|
| 2026485 – (CVE-2021-4149) CVE-2021-4149 kernel: Improper lock operation in btrfs |
MISC |
bugzilla.redhat.com |
|
| [SECURITY] [DLA 3065-1] linux security update |
MLIST |
lists.debian.org |
|
| CVE Program record |
CVE.ORG |
www.cve.org |
canonical |
| NVD vulnerability detail |
NVD |
nvd.nist.gov |
canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 159760 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel-container (ELSA-2022-9314)
- 159763 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2022-9313)
- 159777 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2022-9348)
- 179840 Debian Security Update for linux (CVE-2021-4149)
- 180282 Debian Security Update for linux (DLA 3065-1)
- 198825 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5466-1)
- 199560 Ubuntu Security Notification for Linux kernel (AWS) Vulnerabilities (USN-6001-1)
- 199568 Ubuntu Security Notification for Linux kernel (AWS) Vulnerabilities (USN-6013-1)
- 199577 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6014-1)
- 390261 Oracle Managed Virtualization (VM) Server for x86 Security Update for kernel (OVMSA-2022-0014)
- 671703 EulerOS Security Update for kernel (EulerOS-SA-2022-1735)
- 751602 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0080-1)
- 751654 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0197-1)
- 751657 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2022:0198-1)
- 751666 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2022:0169-1)
- 751695 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0367-1)
- 751696 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0364-1)
- 751697 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0366-1)
- 751698 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0362-1)
- 751701 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2022:0366-1)
- 751702 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0371-1)
- 751993 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0198-1)
- 753194 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0288-1)
- 753267 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0169-1)
- 753462 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:0289-1)
- 900780 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9136)
- 901316 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9136-1)
- 905972 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9136-2)
