CVE-2022-49451

Summary

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

firmware: arm_scmi: Fix list protocols enumeration in the base protocol

While enumerating protocols implemented by the SCMI platform using BASE_DISCOVER_LIST_PROTOCOLS, the number of returned protocols is currently validated in an improper way since the check employs a sum between unsigned integers that could overflow and cause the check itself to be silently bypassed if the returned value 'loop_num_ret' is big enough.

Fix the validation avoiding the addition.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxb6f20ff8bd94ad34032804a60bab5ee56752007e < 444a2d27fe9867d0da4b28fc45b793f32e099ab8affected
LinuxLinuxb6f20ff8bd94ad34032804a60bab5ee56752007e < b0e4bafac8963c2d85ee18d3d01f393735acceecaffected
LinuxLinuxb6f20ff8bd94ad34032804a60bab5ee56752007e < 1052f22e127d0c34c3387bb389424ba1c61491ffaffected
LinuxLinuxb6f20ff8bd94ad34032804a60bab5ee56752007e < 98342148a8cd242855d7e257f298c966c96dba9faffected
LinuxLinuxb6f20ff8bd94ad34032804a60bab5ee56752007e < 6e7978695f4a6cbd83616b5a702b77fa2087b247affected
LinuxLinuxb6f20ff8bd94ad34032804a60bab5ee56752007e < 2ccfcd7a09c826516edcfe464b05071961aada3faffected
LinuxLinuxb6f20ff8bd94ad34032804a60bab5ee56752007e < 8009120e0354a67068e920eb10dce532391361d0affected
LinuxLinux4.17affected
LinuxLinux0 < 4.17unaffected
LinuxLinux4.19.247 <= 4.19.*unaffected
LinuxLinux5.4.198 <= 5.4.*unaffected
LinuxLinux5.10.121 <= 5.10.*unaffected
LinuxLinux5.15.46 <= 5.15.*unaffected
LinuxLinux5.17.14 <= 5.17.*unaffected
LinuxLinux5.18.3 <= 5.18.*unaffected
LinuxLinux5.19 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References