CVE-2022-49455

Summary

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

misc: ocxl: fix possible double free in ocxl_file_register_afu

info_release() will be called in device_unregister() when info->dev's reference count is 0. So there is no need to call ocxl_afu_put() and kfree() again.

Fix this by adding free_minor() and return to err_unregister error path.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux75ca758adbafc81804c39b2c200ecdc819a6c042 < de65c32ace9aa70d51facc61ba986607075e3a25affected
LinuxLinux75ca758adbafc81804c39b2c200ecdc819a6c042 < ee89d8dee55ab4b3b8ad8b70866b2841ba334767affected
LinuxLinux75ca758adbafc81804c39b2c200ecdc819a6c042 < 8fb674216835e1f0c143762696d645facebb4685affected
LinuxLinux75ca758adbafc81804c39b2c200ecdc819a6c042 < 252768d32e92c1214aeebb5fec0844ca479bcf5caffected
LinuxLinux75ca758adbafc81804c39b2c200ecdc819a6c042 < 9e9087cf34ee69f4e95d146ac29385d6e367a97baffected
LinuxLinux75ca758adbafc81804c39b2c200ecdc819a6c042 < 950cf957fe34d40d63dfa3bf3968210430b6491eaffected
LinuxLinux5.2affected
LinuxLinux0 < 5.2unaffected
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: total

References