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vsock/virtio: read virtqueues under worker locks

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: read virtqueues under worker locks Commit bd50c5dc182b ("vsock/virtio: add support for device suspend/resume") made the *_run flags transition from false to true when restore installs replacement virtqueues. The RX, TX and event workers read their virtqueue before locking and checking the corresponding flag, so a worker delayed across freeze and restore can observe the replacement queue's running state while retaining a pointer to the deleted queue. Read each virtqueue under its mutex after checking the run flag, keeping the pointer and state in the same queue generation.

Announced Source revision 1
Original source ↗

CVE-2026-74614

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-74614

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "762c251c7f5c4ee5bef71460c6e822ed293fd69f",
        "lessThan": "941329ce14c5f481223a10d1d4c8b57ea7f3048a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c",
        "lessThan": "29dd10583bf9d2744cd84b862e4257c0a5699570",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c",
        "lessThan": "a1fb0c5b8a7c2753758aeced40971f99449dde0c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c",
        "lessThan": "eae099c764c7ebdb842eb1f638913e310bdd6513",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c",
        "lessThan": "bd43a7ec668be428265b3209eb43647aedcf720a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c",
        "lessThan": "1cecb4202afdbeddcf29d59baf596ac6ab753f7f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c",
        "lessThan": "ebac8f6b1ef0e9278afe204b8692a7479988dace",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5.15.138",
        "lessThan": "5.15.216",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "net/vmw_vsock/virtio_transport.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.19"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.19",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.15.216",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.183",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.152",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.104",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.45",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.1.9",
        "versionType": "semver",
        "lessThanOrEqual": "7.1.*"
      },
      {
        "status": "unaffected",
        "version": "7.2",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/vmw_vsock/virtio_transport.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-74614

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#33240 · Revision 1
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Publisher date
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