SB20240625132 - NULL pointer dereference in Linux kernel btrfs
Published: June 25, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240625132
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2024-38306)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the grab_extent_buffer(), check_eb_alignment(), filemap_add_folio(), __free_page(), alloc_extent_buffer() and folio_size() functions in fs/btrfs/extent_io.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.