CVE-2026-93782

kernel: vhost-scsi: flush backend after device ioctls

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 24, 2026

Updated · September 28, 2026

Description

A flaw was found in the Linux kernel's vhost-scsi driver. When updating device memory tables, the driver fails to wait for in-flight storage commands to complete before replacing memory mappings. A local user can exploit this issue to overwrite unintended memory when asynchronous command responses finish. This vulnerability leads to memory corruption, system instability, 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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-825 · Expired Pointer Dereference