Vulnerability 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 <[email protected]>. 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.8, < 5.10.111 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/1d89f2b9eadbcf3ce93c6d7238f68299a1f84968Patch
- https://git.kernel.org/stable/c/47e239117bd97c8556f9187af7a9a7938db4e021Patch
- https://git.kernel.org/stable/c/71ff461c3f41f6465434b9e980c01782763e7ad8Patch
- https://git.kernel.org/stable/c/bd905fed87ce01ac010011bb8f44ed0140116cebPatch
- https://git.kernel.org/stable/c/ea518578aa8a9a0280605b53cc33f707e10c8178Patch
FAQ
What is CVE-2022-49083?
CVE-2022-49083 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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"...
How severe is CVE-2022-49083?
CVE-2022-49083 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-49083?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.