Race condition in Linux kernel - CVE-2026-93782
Published: September 25, 2026
Vulnerability identifier: #VU152111
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93782
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to write response data to an unrelated userspace object.
The vulnerability exists due to a race condition in vhost-scsi ioctl handling when replacing the memory table while commands are in flight. A local user can submit commands and issue VHOST_SET_MEM_TABLE to write response data to an unrelated userspace object.
Affected software
Linux kernel
How to mitigate CVE-2026-93782
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3