SB20241022108 - Improper locking in Linux kernel nfs
Published: October 22, 2024 Updated: May 12, 2025
Security Bulletin ID
SB20241022108
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-2024-50046)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the nfs42_complete_copies() function in fs/nfs/nfs4state.c, within the handle_async_copy() function in fs/nfs/nfs42proc.c, within the nfs_alloc_server() function in fs/nfs/client.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/f892165c564e3aab272948dbb556cc20e290c55a
- https://git.kernel.org/stable/c/584c019baedddec3fd634053e8fb2d8836108d38
- https://git.kernel.org/stable/c/632344b9efa064ca737bfcdaaaced59fd5f18ae9
- https://git.kernel.org/stable/c/fca41e5fa4914d12b2136c25f9dad69520b52683
- https://git.kernel.org/stable/c/ef9189bb15dcbe7ed3f3515aaa6fc8bf7483960d
- https://git.kernel.org/stable/c/a848c29e3486189aaabd5663bc11aea50c5bd144
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.227
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.168
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.113
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.57