CVE-2022-49422 Information

Description

In the Linux kernel the following vulnerability has been resolved:

dmaengine: idxd: Fix the error handling path in idxd_cdev_register()

If a call to alloc_chrdev_region() fails the already allocated resources are leaking.

Add the needed error handling path to fix the leak.

Reference

https://git.kernel.org/stable/c/5e88561eceb34ae3f88451c2b8e30fe403484189 https://git.kernel.org/stable/c/6073af78156b8c3fc1198f8bcc190b7ac3ac0143 https://git.kernel.org/stable/c/aab08c1aac01097815fbcf10fce7021d2396a31f https://git.kernel.org/stable/c/b3c7b5d08e9d5b2ff31c03078c00ecf11042419f https://git.kernel.org/stable/c/c308a2e711a52a47f4b45e7add2b5200169e429a