Stack-based buffer overflow in Linux kernel - CVE-2023-53655
Published: October 8, 2025 / Updated: October 26, 2025
Vulnerability identifier: #VU116821
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2023-53655
CWE-ID: CWE-121
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to stack overflow within the __rcu_irq_enter_check_tick() function in kernel/rcu/tree.c. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
How to mitigate CVE-2023-53655
Install update from vendor's repository.
Linux kernel - update to 5.10.180
External References
- https://git.kernel.org/stable/c/4c3d1a6720aefb02403ddfebe85db521d3af2c3b
- https://git.kernel.org/stable/c/7a29fb4a4771124bc61de397dbfc1554dbbcc19c
- https://git.kernel.org/stable/c/7b5a97333e920b69356e097f185bdc51d61e66ee
- https://git.kernel.org/stable/c/93b6295f677d96b73cfcb703532f6c7369a60d96
- https://git.kernel.org/stable/c/c8a3341b339285495cf7c8d061d659465f2311e0
- https://git.kernel.org/stable/c/eb18bc5a8678f431c500e6da1b8b5f34478d5bc1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.180