NULL pointer dereference in Linux kernel - CVE-2023-53335
Published: September 18, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115793
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-53335
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.
How to mitigate CVE-2023-53335
Install update from vendor's repository.
Sources
- 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