CVE-2022-49319
iommu/arm-smmu-v3: check return value after calling platform_get_resource()
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Description
In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu-v3: check return value after calling platform_get_resource() It will cause null-ptr-deref if platform_get_resource() returns NULL, we need check the return value.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/54c1e0e3bbcab2abe25b2874a43050ae5df87831
- https://git.kernel.org/stable/c/54cf47da0c7532d151d76e5d63f5936191698c44
- https://git.kernel.org/stable/c/b131fa8c1d2afd05d0b7598621114674289c2fbb
- https://git.kernel.org/stable/c/db728a891f9177b044aaca89b678f6b5e24d5cc3
- https://git.kernel.org/stable/c/fb0f1c5eb8d60b3e018ba7c87da249b52674ebe6
References (5)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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