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medium5.5

CVE-2022-49915

In the Linux kernel, the following vulnerability has been resolved: mISDN: fix possible memory leak in mISDN_register_device() Afer commit 1fa5ae857bb1 ("drive…

Impact

In the Linux kernel, the following vulnerability has been resolved: mISDN: fix possible memory leak in mISDN_register_device() Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array"), the name of device is allocated dynamically, add put_device() to give up the reference, so that the name can be freed in kobject_cleanup() when the refcount is 0. Set device class before put_device() to avoid null release() function WARN message in device_release().

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 2.6.30 before 4.9.333
from 4.10 before 4.14.299
from 4.15 before 4.19.265
from 4.20 before 5.4.224
from 5.5 before 5.10.154
from 5.11 before 5.15.78

Weakness classification

CWE-401

References