SB2024082238 - Improper locking in Linux kernel btrfs

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Main Vulnerability Database SB2024082238

SB2024082238 - Improper locking in Linux kernel btrfs

Published: August 22, 2024 Updated: May 12, 2025

Security Bulletin ID SB2024082238
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Improper locking (CVE-ID: CVE-2022-48901)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the btrfs_maybe_wake_unfinished_drop() and btrfs_add_dead_root() functions in fs/btrfs/transaction.c, within the btrfs_find_orphan_roots() function in fs/btrfs/root-tree.c, within the btrfs_relocate_block_group() function in fs/btrfs/relocation.c, within the btrfs_drop_snapshot() and btrfs_free_path() functions in fs/btrfs/extent-tree.c, within the open_ctree() and close_ctree() functions in fs/btrfs/disk-io.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References