SB20260507178 - Out-of-bounds write in Linux kernel clk driver

Description

This security bulletin contains information about 1 vulnerability.

1) Out-of-bounds write (CVE-ID: CVE-2026-43175)

CWE-ID: CWE-787 - Out-of-bounds write

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 user to cause a denial of service.

The vulnerability exists due to an out-of-bounds write in the rs9 clock driver when registering clock hardware pointers for the 9FGV0841 chip. A local user can trigger the vulnerable driver path to cause a denial of service.

Memory corruption may affect adjacent members of struct rs9_driver_data, and the kernel is reported to crash when the driver is unbound or during suspend.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/2f926875dffe2226ea26d129e16d9092cccd03aa
• https://git.kernel.org/stable/c/5ec820fc28d0b8a0f3890d476b1976f20e8343cc
• https://git.kernel.org/stable/c/82a34f344999d8029bcebf131028fa519140c7cc
• https://git.kernel.org/stable/c/da86ca15d7389ee0b5df08e8f70c39354e6b8a4b