CVE-2021-4149

MediumCVSS 5.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-667

Affected software

Vendor	Product	Versions
n/a	kernel	kernel 5.15 rc6

References

https://bugzilla.redhat.com/show_bug.cgi?id=2026485Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.htmlMailing List, Third Party Advisory
https://lkml.org/lkml/2021/10/18/885Exploit, Mailing List, Patch, Third Party Advisory
https://lkml.org/lkml/2021/9/13/2565Exploit, Mailing List, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2026485Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.htmlMailing List, Third Party Advisory
https://lkml.org/lkml/2021/10/18/885Exploit, Mailing List, Patch, Third Party Advisory
https://lkml.org/lkml/2021/9/13/2565Exploit, Mailing List, Third Party Advisory

Timeline

Published: Mar 23, 2022
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-414907.5Memory leaks in LazyPRM.cpp of OMPL v1.5.0 can cause unexpected behavior.CVE-2021-414929.8Multiple SQL Injection vulnerabilities exist in Sourcecodester Simple Cashiering System (POS) 1.0 via the (1) Product Code in the pos page i CVE-2021-414955.3Null Pointer Dereference vulnerability exists in numpy.sort in NumPy &lt and 1.19 in the PyArray_DescrNew function due to missing return-val CVE-2021-414965.5Buffer overflow in the array_from_pyobj function of fortranobject.c in NumPy < 1.19, which allows attackers to conduct a Denial of Service a CVE-2021-414977.5Null pointer reference in CMS_Conservative_increment_obj in RaRe-Technologies bounter version 1.01 and 1.10, allows attackers to conduct Den CVE-2021-414987.5Buffer overflow in ajaxsoundstudio.com Pyo &lt and 1.03 in the Server_jack_init function. which allows attackers to conduct Denial of Servic CVE-2021-414997.5Buffer Overflow Vulnerability exists in ajaxsoundstudio.com n Pyo < 1.03 in the Server_debug function, which allows remote attackers to cond CVE-2021-41505.5A use-after-free flaw was found in the add_partition in block/partitions/core.c in the Linux kernel. A local attacker with user privileges c CVE-2021-415007.5Incomplete string comparison vulnerability exits in cvxopt.org cvxop <= 1.2.6 in APIs (cvxopt.cholmod.diag, cvxopt.cholmod.getfactor, cvxopt CVE-2021-415025.4An issue was discovered in Subrion CMS v4.2.1 There is a stored cross-site scripting (XSS) vulnerability that can execute malicious JavaScri CVE-2021-415038.0DCS-5000L v1.05 and DCS-932L v2.17 and older are affecged by Incorrect Acess Control. The use of the basic authentication for the devices co CVE-2021-415048.0An Elevated Privileges issue exists in D-Link DCS-5000L v1.05 and DCS-932L v2.17 and older. The use of the digest-authentication for the dev