CVE-2021-4149

kernel: Improper lock operation in btrfs

Published Mar 23, 2022 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3065-1 linux security update
EUVD EUVD EUVD-2021-34017 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.
Ubuntu USN Ubuntu USN USN-5466-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6001-1 Linux kernel (AWS) vulnerabilities
Ubuntu USN Ubuntu USN USN-6013-1 Linux kernel (AWS) vulnerabilities
Ubuntu USN Ubuntu USN USN-6014-1 Linux kernel vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 3, 2024, 5:16 PM
Reserved
Dec 21, 2021, 12:00 AM
Status
Modified
Published
Mar 23, 2022, 8:15 PM
Modified
Jun 17, 2026, 4:19 AM
Severity
Moderate
Public date
Oct 18, 2021, 12:00 AM