CVE-2026-80788
kernel: nvmet-tcp: Do not WARN on remotely-controlled oversized SGL allocations
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 4, 2026
Updated · September 29, 2026
Description
A flaw was found in the Linux kernel's nvmet-tcp component. A remote attacker can send a specially crafted command with an oversized Scatter-Gather List (SGL) allocation. This can lead to an excessive memory allocation, triggering a kernel warning. On systems configured to panic on warnings, this could result in a denial of service.
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 · 6.2CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-1285 · Improper Validation of Specified Index, Position, or Offset in Input