CVE-2026-93782
HIGHDescription
In the Linux kernel, the following vulnerability has been resolved:
vhost-scsi: flush backend after device ioctls
vhost-scsi translates guest response descriptors into userspace iovecs
when commands are submitted. Target-core completes those commands
asynchronously, so VHOST_SET_MEM_TABLE can replace the memory table while
an in-flight command still retains response iovecs translated through the
old table.
If the old mapping is reused after VHOST_SET_MEM_TABLE returns, command
completion can write the response to an unrelated userspace object.
Flush the vhost-scsi backend after vhost_dev_ioctl() handles a device
ioctl. This waits for in-flight commands that can still use the old
response iovecs before the ioctl returns.
CVSS v3 vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected routers (0)
No routers currently mapped to this CVE in our database.