SB2025091859 - NULL pointer dereference in Linux kernel nfs
Published: September 18, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091859
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-2023-53360)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the nfs_readhdr_alloc() and nfs_pageio_reset_read_mds() functions in fs/nfs/read.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/303a78052091c81e9003915c521fdca1c7e117af
- https://git.kernel.org/stable/c/a2f4cb206bd94b3f4a7bb05fcdce9525283b5681
- https://git.kernel.org/stable/c/adac9f0ddd2b291c7ce41f549fdb27a13616cff5
- https://git.kernel.org/stable/c/ae5d5672f1db711e91db6f52df5cb16ecd8f5692
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.3