CVE-2022-50364

Summary

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

i2c: mux: reg: check return value after calling platform_get_resource()

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

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxb3fdd32799d834e2626fae087906e886037350c6 < 61df25c41b8e0d2c988ccf17139f70075a2e1ba4affected
LinuxLinuxb3fdd32799d834e2626fae087906e886037350c6 < 8212800943997fab61874550278d653cb378c60caffected
LinuxLinuxb3fdd32799d834e2626fae087906e886037350c6 < f5049b3ad9446203b916ee375f30fa217735f63aaffected
LinuxLinuxb3fdd32799d834e2626fae087906e886037350c6 < f7a440c89b6d460154efeb058272760e41bdfea8affected
LinuxLinuxb3fdd32799d834e2626fae087906e886037350c6 < 2d47b79d2bd39cc6369eccf94a06568d84c906aeaffected
LinuxLinux4.3affected
LinuxLinux0 < 4.3unaffected
LinuxLinux5.10.163 <= 5.10.*unaffected
LinuxLinux5.15.86 <= 5.15.*unaffected
LinuxLinux6.0.16 <= 6.0.*unaffected
LinuxLinux6.1.2 <= 6.1.*unaffected
LinuxLinux6.2 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References