Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.30, < 4.9.334 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/083a2c9ef82e184bdf0b9f9a1e5fc38d32afbb47Patch
- https://git.kernel.org/stable/c/0f2c681900a01e3f23789bca26d88268c3d5b51dPatch
- https://git.kernel.org/stable/c/727ed7d28348c026c7ef4d852f3d0e5054d376e8Patch
- https://git.kernel.org/stable/c/7a05e3929668c8cfef495c69752a9e91fac4878fPatch
- https://git.kernel.org/stable/c/98a2ac1ca8fd6eca6867726fe238d06e75eb1acdPatch
- https://git.kernel.org/stable/c/b119bedbefb7dd9ed8bf8cb9f1056504250d610ePatch
- https://git.kernel.org/stable/c/bbd53d05c4c892080ef3b617eff4f57903acecb9Patch
- https://git.kernel.org/stable/c/d4b8394725079670be309f9a35ad88a8cbbaaefdPatch
FAQ
What is CVE-2022-49821?
CVE-2022-49821 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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...
How severe is CVE-2022-49821?
CVE-2022-49821 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-49821?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.