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vfio/pci: Lock external INTx masking ops

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Lock external INTx masking ops Mask operations through config space changes to DisINTx may race INTx configuration changes via ioctl. Create wrappers that add locking for paths outside of the core interrupt code. In particular, irq_type is updated holding igate, therefore testing is_intx() requires holding igate. For example clearing DisINTx from config space can otherwise race changes of the interrupt configuration. This aligns interfaces which may trigger the INTx eventfd into two camps, one side serialized by igate and the other only enabled while INTx is configured. A subsequent patch introduces synchronization for the latter flows.

Announced Source revision 1
Original source ↗

CVE-2024-26810

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-2024-26810

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": "89e1f7d4c66d85f42c3d52ea3866eb10cadf6153",
        "lessThan": "1e71b6449d55179170efc8dee8664510bb813b42",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "89e1f7d4c66d85f42c3d52ea3866eb10cadf6153",
        "lessThan": "3dd9be6cb55e0f47544e7cdda486413f7134e3b3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "89e1f7d4c66d85f42c3d52ea3866eb10cadf6153",
        "lessThan": "ec73e079729258a05452356cf6d098bf1504d5a6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "89e1f7d4c66d85f42c3d52ea3866eb10cadf6153",
        "lessThan": "3fe0ac10bd117df847c93408a9d428a453cd60e5",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "89e1f7d4c66d85f42c3d52ea3866eb10cadf6153",
        "lessThan": "04a4a017b9ffd7b0f427b8c376688d14cb614651",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "89e1f7d4c66d85f42c3d52ea3866eb10cadf6153",
        "lessThan": "6fe478d855b20ac1eb5da724afe16af5a2aaaa40",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "89e1f7d4c66d85f42c3d52ea3866eb10cadf6153",
        "lessThan": "03505e3344b0576fd619416793a31eae9c5b73bf",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "89e1f7d4c66d85f42c3d52ea3866eb10cadf6153",
        "lessThan": "810cd4bb53456d0503cc4e7934e063835152c1b7",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/vfio/pci/vfio_pci_intrs.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.6"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.6",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.4.274",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.215",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.154",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.84",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.24",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.7.12",
        "versionType": "semver",
        "lessThanOrEqual": "6.7.*"
      },
      {
        "status": "unaffected",
        "version": "6.8.3",
        "versionType": "semver",
        "lessThanOrEqual": "6.8.*"
      },
      {
        "status": "unaffected",
        "version": "6.9",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/vfio/pci/vfio_pci_intrs.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-26810

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#26427 · Revision 1
Added to Heist Feed
Publisher date
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