SB2025091867 - NULL pointer dereference in Linux kernel hw cxgb4 driver
Published: September 18, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091867
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-2023-53335)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the pass_establish() function in drivers/infiniband/hw/cxgb4/cm.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/283861a4c52c1ea4df3dd1b6fc75a50796ce3524
- https://git.kernel.org/stable/c/2cfc00e974d75a3aa8155f2660f57d342e1f67ca
- https://git.kernel.org/stable/c/9dca64042d855a24b0bd81ce242e5dc7e939f6eb
- https://git.kernel.org/stable/c/9ddc77eefb2a567b705c3c86ab2ddabe43cadf1b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.3