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iommu: Return right value in iommu_sva_bind_device()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: iommu: Return right value in iommu_sva_bind_device() iommu_sva_bind_device() should return either a sva bond handle or an ERR_PTR value in error cases. Existing drivers (idxd and uacce) only check the return value with IS_ERR(). This could potentially lead to a kernel NULL pointer dereference issue if the function returns NULL instead of an error pointer. In reality, this doesn't cause any problems because iommu_sva_bind_device() only returns NULL when the kernel is not configured with CONFIG_IOMMU_SVA. In this case, iommu_dev_enable_feature(dev, IOMMU_DEV_FEAT_SVA) will return an error, and the device drivers won't call iommu_sva_bind_device() at all.

Announced Source revision 1
Original source ↗

CVE-2024-40945

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-2024-40945

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": "26b25a2b98e45aeb40eedcedc586ad5034cbd984",
        "lessThan": "700f564758882db7c039dfba9443fe762561a3f8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "26b25a2b98e45aeb40eedcedc586ad5034cbd984",
        "lessThan": "cf34f8f66982a36e5cba0d05781b21ec9606b91e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "26b25a2b98e45aeb40eedcedc586ad5034cbd984",
        "lessThan": "2973b8e7d127754de9013177c41c0b5547406998",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "26b25a2b98e45aeb40eedcedc586ad5034cbd984",
        "lessThan": "6325eab6c108fed27f60ff51852e3eac0ba23f3f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "26b25a2b98e45aeb40eedcedc586ad5034cbd984",
        "lessThan": "7388ae6f26c0ba95f70cc96bf9c5d5cb06c908b6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "26b25a2b98e45aeb40eedcedc586ad5034cbd984",
        "lessThan": "61a96da9649a6b6a1a5d5bde9374b045fdb5c12e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "26b25a2b98e45aeb40eedcedc586ad5034cbd984",
        "lessThan": "89e8a2366e3bce584b6c01549d5019c5cda1205e",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "include/linux/iommu.h"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.2"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.2",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.4.279",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.162",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.129",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.35",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.9.6",
        "versionType": "semver",
        "lessThanOrEqual": "6.9.*"
      },
      {
        "status": "unaffected",
        "version": "6.10",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "include/linux/iommu.h"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-40945

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#26643 · Revision 1
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Publisher date
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