CVE-2022-49821
mISDN: fix possible memory leak in mISDN_dsp_element_register()
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Description
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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/083a2c9ef82e184bdf0b9f9a1e5fc38d32afbb47
- https://git.kernel.org/stable/c/0f2c681900a01e3f23789bca26d88268c3d5b51d
- https://git.kernel.org/stable/c/727ed7d28348c026c7ef4d852f3d0e5054d376e8
- https://git.kernel.org/stable/c/7a05e3929668c8cfef495c69752a9e91fac4878f
- https://git.kernel.org/stable/c/98a2ac1ca8fd6eca6867726fe238d06e75eb1acd
References (8)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Quick Info
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