CVE-2026-90079
kernel: octeontx2-af: fix cn20k mailbox lifetime on repeated rvu_mbox_init()
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 6, 2026
Description
A flaw was found in the Linux kernel's octeontx2-af component, responsible for managing mailbox operations in Marvell OCTEON TX2 network devices. This vulnerability arises from improper handling of memory allocation during repeated initialization calls, leading to memory leaks. An attacker could potentially exploit this to cause resource exhaustion, resulting in a denial of service (DoS) condition.
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-772 · Missing Release of Resource after Effective Lifetime