Race condition in Linux kernel - CVE-2026-74702
Published: August 24, 2026
Vulnerability identifier: #VU144637
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-74702
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper state management in vhost_scsi_set_features() and the vhost-scsi I/O path when changing negotiated virtio feature bits after the endpoint is active. A local user can change the VIRTIO_SCSI_F_T10_PI feature after endpoint setup and trigger crafted I/O processing to cause a denial of service.
The issue can lead to a kernel BUG_ON when handling a 129-page protection payload because command resources are not rebuilt to match the changed feature state.
Affected software
Linux kernel
How to mitigate CVE-2026-74702
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3