CVE-2022-49323

Summary

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

iommu/arm-smmu: fix possible null-ptr-deref in arm_smmu_device_probe()

It will cause null-ptr-deref when using 'res', if platform_get_resource() returns NULL, so move using 'res' after devm_ioremap_resource() that will check it to avoid null-ptr-deref. And use devm_platform_get_and_ioremap_resource() to simplify code.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux9648cbc9625b67c91ed1aaf4b8b77f3f0c537496 < 3660db29b0305f9a1d95979c7af0f5db6ea99f5daffected
LinuxLinux9648cbc9625b67c91ed1aaf4b8b77f3f0c537496 < 98dd53a92825747395649f54d23512a13c3ed471affected
LinuxLinux9648cbc9625b67c91ed1aaf4b8b77f3f0c537496 < 80776a71340f57d6a4952635fc89f0342072f3caaffected
LinuxLinux9648cbc9625b67c91ed1aaf4b8b77f3f0c537496 < 449fc4561762ad9ad85362d5f01f0d0df397457aaffected
LinuxLinux9648cbc9625b67c91ed1aaf4b8b77f3f0c537496 < d9ed8af1dee37f181096631fb03729ece98ba816affected
LinuxLinux4.11affected
LinuxLinux0 < 4.11unaffected
LinuxLinux5.10.122 <= 5.10.*unaffected
LinuxLinux5.15.47 <= 5.15.*unaffected
LinuxLinux5.17.15 <= 5.17.*unaffected
LinuxLinux5.18.4 <= 5.18.*unaffected
LinuxLinux5.19 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References