SB20250619250 - NULL pointer dereference in Linux kernel f2fs
Published: June 19, 2025 Updated: June 21, 2025
Security Bulletin ID
SB20250619250
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-2022-50009)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the f2fs_abort_atomic_write() and __get_segment_type_6() functions in fs/f2fs/segment.c, within the f2fs_ioc_start_atomic_write() function in fs/f2fs/file.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.