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CVE-2022-49455

misc: ocxl: fix possible double free in ocxl_file_register_afu

CVSS 7.8 HIGHEPSS 0.3%CWE-415
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · Linux

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References
https://git.kernel.org/stable/c/252768d32e92c1214aeebb5fec0844ca479bcf5chttps://git.kernel.org/stable/c/8fb674216835e1f0c143762696d645facebb4685https://git.kernel.org/stable/c/950cf957fe34d40d63dfa3bf3968210430b6491ehttps://git.kernel.org/stable/c/9e9087cf34ee69f4e95d146ac29385d6e367a97bhttps://git.kernel.org/stable/c/de65c32ace9aa70d51facc61ba986607075e3a25https://git.kernel.org/stable/c/ee89d8dee55ab4b3b8ad8b70866b2841ba334767