CVE-2022-49455highCWE-415

misc: ocxl: fix possible double free in ocxl_file_register_afu

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.8epss 0.3%

exploitation probability

0.3%top 80% of all CVEs

observed exploitation

nono source reports it

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

References

https://git.kernel.org/stable/c/252768d32e92c1214aeebb5fec0844ca479bcf5c https://git.kernel.org/stable/c/8fb674216835e1f0c143762696d645facebb4685 https://git.kernel.org/stable/c/950cf957fe34d40d63dfa3bf3968210430b6491e https://git.kernel.org/stable/c/9e9087cf34ee69f4e95d146ac29385d6e367a97b https://git.kernel.org/stable/c/de65c32ace9aa70d51facc61ba986607075e3a25 https://git.kernel.org/stable/c/ee89d8dee55ab4b3b8ad8b70866b2841ba334767