SB2024081991 - Improper locking in Linux kernel nfs
Published: August 19, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024081991
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) Improper locking (CVE-ID: CVE-2024-43826)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the nfs_wb_folio_cancel() and nfs_wb_folio() functions in fs/nfs/write.c, within the nfs_read_folio() function in fs/nfs/read.c, within the nfs_invalidate_folio() and nfs_launder_folio() functions in fs/nfs/file.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.