SB2025091718 - NULL pointer dereference in Linux kernel kernel ptrace
Published: September 17, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091718
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-2023-53326)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the gpr_set() function in arch/powerpc/kernel/ptrace/ptrace-view.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/01849382373b867ddcbe7536b9dfa89f3bcea60e
- https://git.kernel.org/stable/c/064a1c7b0f8403260d77627e62424a72ca26cee2
- https://git.kernel.org/stable/c/7624973bc15b76d000e8e6f9b8080fcb76d36595
- https://git.kernel.org/stable/c/80a4200d51e5a7e046f4a90f5faa5bafd5a60c58
- https://git.kernel.org/stable/c/fd7276189450110ed835eb0a334e62d2f1c4e3be
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.177
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.106
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.23
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3