← CVE Intelligence

CVE-2022-49821

mISDN: fix possible memory leak in mISDN_dsp_element_register() PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: mISDN: fix possible memory leak in mISDN_dsp_element_register() Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array"), the name of device is allocated dynamically, use put_device() to give up the reference, so that the name can be freed in kobject_cleanup() when the refcount is 0. The 'entry' is going to be freed in mISDN_dsp_dev_release(), so the kfree() is removed. list_del() is called in mISDN_dsp_dev_release(), so it need be initialized.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 1fa5ae857bb14f6046205171d98506d8112dd74e before bbd53d05c4c892080ef3b617eff4f57903acecb9; affected 1fa5ae857bb14f6046205171d98506d8112dd74e before b119bedbefb7dd9ed8bf8cb9f1056504250d610e; affected 1fa5ae857bb14f6046205171d98506d8112dd74e before 727ed7d28348c026c7ef4d852f3d0e5054d376e8; affected 1fa5ae857bb14f6046205171d98506d8112dd74e before 0f2c681900a01e3f23789bca26d88268c3d5b51d; affected 1fa5ae857bb14f6046205171d98506d8112dd74e before 083a2c9ef82e184bdf0b9f9a1e5fc38d32afbb47; affected 1fa5ae857bb14f6046205171d98506d8112dd74e before 7a05e3929668c8cfef495c69752a9e91fac4878f; affected 1fa5ae857bb14f6046205171d98506d8112dd74e before d4b8394725079670be309f9a35ad88a8cbbaaefd; affected 1fa5ae857bb14f6046205171d98506d8112dd74e before 98a2ac1ca8fd6eca6867726fe238d06e75eb1acd
Linux / Linuxaffected 2.6.30; unaffected 0 before 2.6.30; unaffected 4.9.334 through 4.9.*; unaffected 4.14.300 through 4.14.*; unaffected 4.19.267 through 4.19.*; unaffected 5.4.225 through 5.4.*; unaffected 5.10.156 through 5.10.*; unaffected 5.15.80 through 5.15.*; unaffected 6.0.10 through 6.0.*; unaffected 6.1 through *

CWE

No CWE identifiers supplied.

References