CVE-2026-46145
kernel: RDMA/mana: Validate rx_hash_key_len
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 28, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's RDMA/mana component. A local user could exploit this vulnerability by providing an invalid rx_hash_key_len value through a user-space API (uAPI) structure. This invalid value is then used in a memcpy operation without proper bounds checking, allowing the user to write beyond intended memory boundaries. This can lead to kernel memory corruption, potentially resulting in privilege escalation or 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 · 7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-787 · Out-of-bounds Write