{"id":"CVE-2026-93782","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nvhost-scsi: flush backend after device ioctls\n\nvhost-scsi translates guest response descriptors into userspace iovecs\nwhen commands are submitted","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nvhost-scsi: flush backend after device ioctls\n\nvhost-scsi translates guest response descriptors into userspace iovecs\nwhen commands are submitted.  Target-core complete…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 057cbf49a1f08297877e46c82f707b1bfea806a8 < 6436411203d8c702ffc055700f1a6bde488ff681","Linux >= 057cbf49a1f08297877e46c82f707b1bfea806a8 < cec088285adcc7ae23c119b6bbdb22270dc2de8f","Linux >= 057cbf49a1f08297877e46c82f707b1bfea806a8 < e0bf6bed528693a6b32439ab122b34a34b66d96f","Linux >= 057cbf49a1f08297877e46c82f707b1bfea806a8 < be2636e1b21fe860db918152abf2932638d06ed7","Linux >= 057cbf49a1f08297877e46c82f707b1bfea806a8 < 981c97d09c6b9560bb12dcc41f11ce59b1a48e97","Linux >= 057cbf49a1f08297877e46c82f707b1bfea806a8 < 6c1b802e36b05ebd9d41686c4dce6f06966af469","Linux >= 057cbf49a1f08297877e46c82f707b1bfea806a8 < 22598f55a4c2b510b3df5e69e563387a963222ae","Linux 3.6"],"published":"2026-09-24","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:17:47.667","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93782","references":[{"url":"https://git.kernel.org/stable/c/22598f55a4c2b510b3df5e69e563387a963222ae","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6436411203d8c702ffc055700f1a6bde488ff681","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6c1b802e36b05ebd9d41686c4dce6f06966af469","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/981c97d09c6b9560bb12dcc41f11ce59b1a48e97","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/be2636e1b21fe860db918152abf2932638d06ed7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cec088285adcc7ae23c119b6bbdb22270dc2de8f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e0bf6bed528693a6b32439ab122b34a34b66d96f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00122,"epssPercentile":0.01933,"ingestedAt":"2026-09-24T16:47:15.904Z","slug":"CVE-2026-93782","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nvhost-scsi: flush backend after device ioctls\n\nvhost-scsi translates guest response descriptors into userspace iovecs\nwhen commands are submitted.  Target-core completes those commands\nasynchronously, so VHOST_SET_MEM_TABLE can replace the memory table while\nan in-flight command still retains response iovecs translated through the\nold table.\n\nIf the old mapping is reused after VHOST_SET_MEM_TABLE returns, command\ncompletion can write the response to an unrelated userspace object.\n\nFlush the vhost-scsi backend after vhost_dev_ioctl() handles a device\nioctl.  This waits for in-flight commands that can still use the old\nresponse iovecs before the ioctl returns.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":210539,"id":"CVE-2026-93782","ts":1790316054659,"field":"cvss","old":null,"new":"7.8"},{"seq":210538,"id":"CVE-2026-93782","ts":1790316054659,"field":"severity","old":"none","new":"high"}]}