CVE-2026-93782

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Source
https://cve.org/CVERecord?id=CVE-2026-93782
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93782.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-93782
Downstream
AZL (1)
BELL (1)
DEBIAN (1)
SUSE (4)
UBUNTU (1)
Related
SUSE (4)
Published
2026-09-24T16:02:14Z
Modified
2026-10-15T10:41:54Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
vhost-scsi: flush backend after device ioctls
Details

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.

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93782.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
057cbf49a1f08297877e46c82f707b1bfea806a8
Fixed
6436411203d8c702ffc055700f1a6bde488ff681
Fixed
cec088285adcc7ae23c119b6bbdb22270dc2de8f
Fixed
e0bf6bed528693a6b32439ab122b34a34b66d96f
Fixed
be2636e1b21fe860db918152abf2932638d06ed7
Fixed
981c97d09c6b9560bb12dcc41f11ce59b1a48e97
Fixed
6c1b802e36b05ebd9d41686c4dce6f06966af469
Fixed
22598f55a4c2b510b3df5e69e563387a963222ae

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93782.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.6.0
Fixed
5.10.271
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.222
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.189
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.158
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.111
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.53

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93782.json"