SB2026052894 - NULL pointer dereference in Linux kernel acpi acpica driver
Published: May 28, 2026
Security Bulletin ID
SB2026052894
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) NULL pointer dereference (CVE-ID: CVE-2026-45982)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 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/E:U/U:Clear
The vulnerability allows a local attacker to cause a denial of service.
The vulnerability exists due to a null pointer dereference in acpi_ev_address_space_dispatch() when handling address space dispatch operations. A local attacker can trigger the vulnerable code path to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/56024dbe8c76cff22f53ba81a95d9efd4d0c9c44
- https://git.kernel.org/stable/c/7d99cbe717c1b15a66559215df32312d8cf7e525
- https://git.kernel.org/stable/c/b24595b86920911d2b04f862422b896a0620e9ad
- https://git.kernel.org/stable/c/cce354524da4d10fd2c7eb835e2e4e8ab8c0ce97
- https://git.kernel.org/stable/c/f2cf475d23b8486dfa414f7ac09f918ffd3c32a5
- https://git.kernel.org/stable/c/f851e03bce968ff9b3faad1b616062e1244fd38d