SB20260918109 - NULL pointer dereference in Linux kernel platform surface driver
Published: September 18, 2026
Security Bulletin ID
SB20260918109
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2026-93114)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a null pointer dereference in san_probe when the Surface ACPI notification driver is force-bound to a device without an ACPI companion. A local user can force-bind the driver to such a device to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/2b3a5dabe89e330413af403246b648c1890f368f
- https://git.kernel.org/stable/c/3855be0100efb98c26228c610db70a673611f3bd
- https://git.kernel.org/stable/c/428a82d987fcd8844e8868c85582eae75b4b5c51
- https://git.kernel.org/stable/c/4faa43d4ef0b98beb6c2b77a279f4aa5d7fa2d13
- https://git.kernel.org/stable/c/7fea5a310e3b2db24f7aafe64897e4e659ffbb7d
- https://git.kernel.org/stable/c/9b6479da662c2ec4e931ed9f7228df46aa8c3766
- https://git.kernel.org/stable/c/f276b62f2ce1cbff7fa50a8ee5afd8fef5a60897