Use of uninitialized resource in Linux kernel - CVE-2026-80791
Published: September 5, 2026
Vulnerability identifier: #VU147129
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80791
CWE-ID: CWE-908
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to use of uninitialized memory in nvmet_execute_auth_receive() when processing a host-supplied AUTH_RECEIVE allocation length. A remote attacker can send a crafted AUTH_RECEIVE request to disclose sensitive information.
Affected software
Linux kernel
How to mitigate CVE-2026-80791
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/1d6837d98bf966a041af65de5f78de7409ff83bc
- https://git.kernel.org/stable/c/2dcc9226203da7275a9c29d20007da278d73d5e9
- https://git.kernel.org/stable/c/3ddcfb013322aa37eaa7a0d344b73079c38dfa21
- https://git.kernel.org/stable/c/447b668faa14710f611e714031e3739ac3ec3a4f
- https://git.kernel.org/stable/c/8f6363c8d54dde95982f0ab45e77cf57ec0efd62
- https://git.kernel.org/stable/c/b26189d28442183a8b5edb754f4a6918f77ca84e
- https://git.kernel.org/stable/c/dfcf013f77709ebdb282767edc2795a37cab5b57