CVE-2026-98726
kernel: nvme-multipath: fix underflow in ANA log bounds checks
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 23, 2026
Description
A flaw was found in the Linux kernel's NVMe (Non-Volatile Memory Express) multipath subsystem. A malicious NVMe device can provide crafted Asymmetric Namespace Access (ANA) log data that triggers an integer underflow during buffer bounds validation. This failure leads to an out-of-bounds memory read, potentially resulting in a Denial of Service (DoS) through a kernel crash or the disclosure of sensitive memory.
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 · 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-125 · Out-of-bounds Read