Unchecked Return Value in Linux kernel - CVE-2026-90145

Vulnerability identifier: #VU151337

CSH Severity: Low

CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-90145

CWE-ID: CWE-252

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to transmit packets with incomplete checksums.

The vulnerability exists due to an unchecked return value in hinic3_tx_csum() when checksum calculation fails for unsupported tunnel packets. A local user can submit an unsupported tunnel packet for checksum processing to transmit packets with incomplete checksums.

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-aws (Ubuntu package)
linux-gcp (Ubuntu package)
linux-oracle (Ubuntu package)
linux-ibm (Ubuntu package)
linux-hwe-7.0 (Ubuntu package)
linux-oem-7.0 (Ubuntu package)

Install security update from vendor's repository.

linux (Ubuntu package) - update to 7.0.0-42.42
linux-aws (Ubuntu package) - update to 7.0.0-1016.17
linux-gcp (Ubuntu package) - update to 7.0.0-1016.18
linux-oracle (Ubuntu package) - update to 7.0.0-1015.16
linux-ibm (Ubuntu package) - update to 7.0.0-1017.17
linux-hwe-7.0 (Ubuntu package) - update to 7.0.0-42.42~24.04.1
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1017.17

• https://git.kernel.org/stable/c/96c3959770386b2913c62005f0d0c3151e0c01c3
• https://git.kernel.org/stable/c/d0c2bed6927cbfa2cb51f240b4812bf6916bce0e
• https://git.kernel.org/stable/c/e794cdc5c369c1b06359e2fe03a8d9270f56bead

• Unchecked Return Value in Linux kernel huawei hinic3 driver
• Ubuntu update for linux-oem-7.0
• Ubuntu update for linux, linux-aws, linux-gcp and more