CVE-2022-50087

Summary

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

firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails

When scpi probe fails, at any point, we need to ensure that the scpi_info is not set and will remain NULL until the probe succeeds. If it is not taken care, then it could result use-after-free as the value is exported via get_scpi_ops() and could refer to a memory allocated via devm_kzalloc() but freed when the probe fails.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux8cb7cf56c9fe5412de238465b27ef35b4d2801aa < 5aa558232edc30468d1f35108826dd5b3ffe978faffected
LinuxLinux8cb7cf56c9fe5412de238465b27ef35b4d2801aa < 18048cba444a7c41dbf42c180d6b46606fc24c51affected
LinuxLinux8cb7cf56c9fe5412de238465b27ef35b4d2801aa < 08272646cd7c310642c39b7f54348fddd7987643affected
LinuxLinux8cb7cf56c9fe5412de238465b27ef35b4d2801aa < 0c29e149b6bb498778ed8a1c9597b51acfba7856affected
LinuxLinux8cb7cf56c9fe5412de238465b27ef35b4d2801aa < 87c4896d5dd7fd9927c814cf3c6289f41de3b562affected
LinuxLinux8cb7cf56c9fe5412de238465b27ef35b4d2801aa < 4f2d7b46d6b53c07f44a4f8f8f4438888f0e9e87affected
LinuxLinux8cb7cf56c9fe5412de238465b27ef35b4d2801aa < 689640efc0a2c4e07e6f88affe6d42cd40cc3f85affected
LinuxLinux4.4affected
LinuxLinux0 < 4.4unaffected
LinuxLinux4.19.256 <= 4.19.*unaffected
LinuxLinux5.4.211 <= 5.4.*unaffected
LinuxLinux5.10.137 <= 5.10.*unaffected
LinuxLinux5.15.61 <= 5.15.*unaffected
LinuxLinux5.18.18 <= 5.18.*unaffected
LinuxLinux5.19.2 <= 5.19.*unaffected
LinuxLinux6.0 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References