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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/1d89f2b9eadbcf3ce93c6d7238f68299a1f84968 cve-icon cve-icon
https://git.kernel.org/stable/c/47e239117bd97c8556f9187af7a9a7938db4e021 cve-icon cve-icon
https://git.kernel.org/stable/c/71ff461c3f41f6465434b9e980c01782763e7ad8 cve-icon cve-icon
https://git.kernel.org/stable/c/bd905fed87ce01ac010011bb8f44ed0140116ceb cve-icon cve-icon
https://git.kernel.org/stable/c/ea518578aa8a9a0280605b53cc33f707e10c8178 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025022657-CVE-2022-49083-34be@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-49083 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-49083 cve-icon
History

Thu, 27 Feb 2025 01:45:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Wed, 26 Feb 2025 02:15:00 +0000

Type Values Removed Values Added
Description 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.
Title iommu/omap: Fix regression in probe for NULL pointer dereference
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-02-26T01:54:42.582Z

Updated: 2025-05-04T08:29:21.393Z

Reserved: 2025-02-26T01:49:39.248Z

Link: CVE-2022-49083

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2025-02-26T07:00:45.643

Modified: 2025-02-26T07:00:45.643

Link: CVE-2022-49083

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-02-26T00:00:00Z

Links: CVE-2022-49083 - Bugzilla