SB20251230274 - Improper error handling in Linux kernel bpf
Published: December 30, 2025 Updated: December 30, 2025
Security Bulletin ID
SB20251230274
CSH 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 vulnerability.
1) Improper error handling (CVE-ID: CVE-2023-54247)
CWE-ID: CWE-388 - Error Handling
CVSSv4: 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]
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling within the btf_type_is_fwd() and btf_type_is_datasec() functions in kernel/bpf/btf.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/61f4bd46a03a81865aca3bcbad2f7b7032fb3160
- https://git.kernel.org/stable/c/7c4f5ab63e7962812505cbd38cc765168a223acb
- https://git.kernel.org/stable/c/e6c2f594ed961273479505b42040782820190305
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.110
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5