ghsa-3742-9rpq-whr7
Vulnerability from github
Published
2025-09-23 21:30
Modified
2025-09-23 21:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

iommu/omap: Fix regression in probe for NULL pointer dereference

Commit 3f6634d997db ("iommu: Use right way to retrieve iommu_ops") started triggering a NULL pointer dereference for some omap variants:

__iommu_probe_device from probe_iommu_group+0x2c/0x38 probe_iommu_group from bus_for_each_dev+0x74/0xbc bus_for_each_dev from bus_iommu_probe+0x34/0x2e8 bus_iommu_probe from bus_set_iommu+0x80/0xc8 bus_set_iommu from omap_iommu_init+0x88/0xcc omap_iommu_init from do_one_initcall+0x44/0x24

This is caused by omap iommu probe returning 0 instead of ERR_PTR(-ENODEV) as noted by Jason Gunthorpe jgg@ziepe.ca.

Looks like the regression already happened with an earlier commit 6785eb9105e3 ("iommu/omap: Convert to probe/release_device() call-backs") that changed the function return type and missed converting one place.

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-49083"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:00:45Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/omap: Fix regression in probe for NULL pointer dereference\n\nCommit 3f6634d997db (\"iommu: Use right way to retrieve iommu_ops\") started\ntriggering a NULL pointer dereference for some omap variants:\n\n__iommu_probe_device from probe_iommu_group+0x2c/0x38\nprobe_iommu_group from bus_for_each_dev+0x74/0xbc\nbus_for_each_dev from bus_iommu_probe+0x34/0x2e8\nbus_iommu_probe from bus_set_iommu+0x80/0xc8\nbus_set_iommu from omap_iommu_init+0x88/0xcc\nomap_iommu_init from do_one_initcall+0x44/0x24\n\nThis is caused by omap iommu probe returning 0 instead of ERR_PTR(-ENODEV)\nas noted by Jason Gunthorpe \u003cjgg@ziepe.ca\u003e.\n\nLooks like the regression already happened with an earlier commit\n6785eb9105e3 (\"iommu/omap: Convert to probe/release_device() call-backs\")\nthat changed the function return type and missed converting one place.",
  "id": "GHSA-3742-9rpq-whr7",
  "modified": "2025-09-23T21:30:54Z",
  "published": "2025-09-23T21:30:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49083"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d89f2b9eadbcf3ce93c6d7238f68299a1f84968"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/47e239117bd97c8556f9187af7a9a7938db4e021"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/71ff461c3f41f6465434b9e980c01782763e7ad8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bd905fed87ce01ac010011bb8f44ed0140116ceb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ea518578aa8a9a0280605b53cc33f707e10c8178"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.