FKIE_CVE-2026-53115

Vulnerability from fkie_nvd - Published: 2026-06-24 17:17 - Updated: 2026-06-24 17:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: bus: fsl-mc: use generic driver_override infrastructure When a driver is probed through __driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a lock, which can cause a UAF. Fix this by using the driver-core driver_override infrastructure taking care of proper locking internally. Note that calling match() from __driver_attach() without the device lock held is intentional. [1]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4911b836f35c034c36f102db4ecbe339b38e7d1d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/60bfb563a399c4597dc80588a1109758a8908b97
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6c8dfb0362732bf1e4829867a2a5239fedc592d0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8139ce66b52a4a5638bfb445b037c07d4abeb08e
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/bus/fsl-mc/fsl-mc-bus.c",
            "drivers/vfio/fsl-mc/vfio_fsl_mc.c",
            "include/linux/fsl/mc.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4911b836f35c034c36f102db4ecbe339b38e7d1d",
              "status": "affected",
              "version": "1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d",
              "versionType": "git"
            },
            {
              "lessThan": "8139ce66b52a4a5638bfb445b037c07d4abeb08e",
              "status": "affected",
              "version": "1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d",
              "versionType": "git"
            },
            {
              "lessThan": "60bfb563a399c4597dc80588a1109758a8908b97",
              "status": "affected",
              "version": "1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d",
              "versionType": "git"
            },
            {
              "lessThan": "6c8dfb0362732bf1e4829867a2a5239fedc592d0",
              "status": "affected",
              "version": "1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/bus/fsl-mc/fsl-mc-bus.c",
            "drivers/vfio/fsl-mc/vfio_fsl_mc.c",
            "include/linux/fsl/mc.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "lessThan": "5.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.91",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbus: fsl-mc: use generic driver_override infrastructure\n\nWhen a driver is probed through __driver_attach(), the bus\u0027 match()\ncallback is called without the device lock held, thus accessing the\ndriver_override field without a lock, which can cause a UAF.\n\nFix this by using the driver-core driver_override infrastructure taking\ncare of proper locking internally.\n\nNote that calling match() from __driver_attach() without the device lock\nheld is intentional. [1]"
    }
  ],
  "id": "CVE-2026-53115",
  "lastModified": "2026-06-24T17:17:25.890",
  "metrics": {},
  "published": "2026-06-24T17:17:25.890",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4911b836f35c034c36f102db4ecbe339b38e7d1d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/60bfb563a399c4597dc80588a1109758a8908b97"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6c8dfb0362732bf1e4829867a2a5239fedc592d0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8139ce66b52a4a5638bfb445b037c07d4abeb08e"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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