Use-after-free in Linux kernel - CVE-2026-89888
Published: September 17, 2026
Vulnerability identifier: #VU150396
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89888
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to execute arbitrary code, disclose sensitive information, modify data, or cause a denial of service.
The vulnerability exists due to use-after-free in the ov02a10_check_hwcfg() function of the ov02a10 media I2C driver when handling endpoint configuration. A local user can trigger hardware configuration checking to execute arbitrary code, disclose sensitive information, modify data, or cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-89888
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/213b2489130357c8d3e8d4fb2bdab88791ce3185
- https://git.kernel.org/stable/c/4c2988bf1ad2753240a38db10ce23e87ec542f8f
- https://git.kernel.org/stable/c/6e13784452785cd8402b228bea53bc6a027ade84
- https://git.kernel.org/stable/c/8ddb3b69f67b0632ff3830da18de3e8dcaf5884b
- https://git.kernel.org/stable/c/90f9b421fc6d4f2edab7521efdb1e58571468d33
- https://git.kernel.org/stable/c/94971ba0592ca77ec99b292226a4b398763315b8
- https://git.kernel.org/stable/c/9de48ba68f56de9fe20ebd3f9728d22af25f9a91