SB2025091716 - NULL pointer dereference in Linux kernel irq
Published: September 17, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091716
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-2023-53332)
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.
Remediation
Install update from vendor's website.
References
- 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