SB2026092506 - Heap-based buffer overflow in Linux kernel acpi acpica driver
Published: September 25, 2026
Security Bulletin ID
SB2026092506
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Heap-based buffer overflow (CVE-ID: CVE-2026-97447)
CWE-ID: CWE-122 - Heap-based Buffer Overflow
CVSSv4: 0 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a heap-based buffer overflow.
The vulnerability exists due to improper validation of OEM ID and OEM Table ID string lengths in acpi_ex_load_table_op() when loading an ACPI table. A local user can supply overlong OEM ID and OEM Table ID strings to cause a heap-based buffer overflow.
Remediation
Install update from vendor's website.