CVE-2026-93782 | BDVDB-2026-378813 Detail
LinuxLinux
Description#
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.
Weaknesses#
No weakness recorded in the source data.
References#
- https://git.kernel.org/stable/c/6436411203d8c702ffc055700f1a6bde488ff681
- https://git.kernel.org/stable/c/cec088285adcc7ae23c119b6bbdb22270dc2de8f
- https://git.kernel.org/stable/c/e0bf6bed528693a6b32439ab122b34a34b66d96f
- https://git.kernel.org/stable/c/be2636e1b21fe860db918152abf2932638d06ed7
- https://git.kernel.org/stable/c/981c97d09c6b9560bb12dcc41f11ce59b1a48e97
- https://git.kernel.org/stable/c/6c1b802e36b05ebd9d41686c4dce6f06966af469
- https://git.kernel.org/stable/c/22598f55a4c2b510b3df5e69e563387a963222ae
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.