CVE-2026-80950
kernel: i3c: renesas: Check that the transfer is valid before accessing it
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 11, 2026
Updated · September 29, 2026
Description
A flaw was found in the Linux kernel's Renesas I3C driver. This driver uses an asynchronous model for data transfers. When a transfer times out, the associated memory is freed. However, if an interrupt occurs after the memory is freed but before the interrupt handler is aware, it can attempt to access the freed memory, leading to a use-after-free vulnerability. This can result in a system crash, causing a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-825 · Expired Pointer Dereference