CVE-2022-49821
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMay 1, 2025
First seenMay 1, 2025
Weakness typeCWE-401CWE-401
How to fix
Update
- linux linux_kernel4.9.334, 4.14.300, 4.19.267, 5.4.225, 5.10.156, 5.15.80, 6.0.10 or later
Patches
- git.kernel.org/stable/c/083a2c9ef82e184bdf0b9f9a1e5fc38d32afbb47
- git.kernel.org/stable/c/0f2c681900a01e3f23789bca26d88268c3d5b51d
- git.kernel.org/stable/c/727ed7d28348c026c7ef4d852f3d0e5054d376e8
- git.kernel.org/stable/c/7a05e3929668c8cfef495c69752a9e91fac4878f
- git.kernel.org/stable/c/98a2ac1ca8fd6eca6867726fe238d06e75eb1acd
- git.kernel.org/stable/c/b119bedbefb7dd9ed8bf8cb9f1056504250d610e
- git.kernel.org/stable/c/bbd53d05c4c892080ef3b617eff4f57903acecb9
- git.kernel.org/stable/c/d4b8394725079670be309f9a35ad88a8cbbaaefd
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.30 ≤ v < 4.9.334, 4.10 ≤ v < 4.14.300, 4.15 ≤ v < 4.19.267, 4.20 ≤ v < 5.4.225, 5.5 ≤ v < 5.10.156, 5.11 ≤ v < 5.15.80, 5.16 ≤ v < 6.0.10, 6.1 | 4.9.334, 4.14.300, 4.19.267, 5.4.225, 5.10.156, 5.15.80, 6.0.10 |
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