NULL pointer dereference in Linux kernel - CVE-2023-53332
Published: September 17, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115685
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-2023-53332
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 EXPORT_SYMBOL_GPL() and ipi_send_verify() functions in kernel/irq/ipi.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2023-53332
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/7448c73d64075051f50caed2c62f46553b69ab8a
- https://git.kernel.org/stable/c/926aef60ea64cd9becf2829f7388f48dbe8bcb11
- https://git.kernel.org/stable/c/feabecaff5902f896531dde90646ca5dfa9d4f7d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3