NULL pointer dereference in Linux kernel - CVE-2026-43098
Published: May 7, 2026
Vulnerability identifier: #VU130658
CSH Severity: Low
CVSS v4.0: 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
CVE-ID: CVE-2026-43098
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a NULL pointer dereference in s3fwrn82_uart_read() when processing received uart data. A local user can trigger allocation failure during frame reception to cause a denial of service.
How to mitigate CVE-2026-43098
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/09822d3d6f68a0cdc4626e0c507324a4927f55a9
- https://git.kernel.org/stable/c/5c14a19d5b1645cce1cb1252833d70b23635b632
- https://git.kernel.org/stable/c/6d931680a9851481c3243689488eafed08eeff71
- https://git.kernel.org/stable/c/7c31f7a599cf00fad3c204092a91a924126c67e4
- https://git.kernel.org/stable/c/d8c2aa3c4a1ec530a485e46a1c4f1a118bb00156