CVE-2022-49821
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.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 2.6.30 | 4.9.334 |
| linux / linux_kernel | 4.10 | 4.14.300 |
| linux / linux_kernel | 4.15 | 4.19.267 |
| linux / linux_kernel | 4.20 | 5.4.225 |
| linux / linux_kernel | 5.5 | 5.10.156 |
| linux / linux_kernel | 5.11 | 5.15.80 |
| linux / linux_kernel | 5.16 | 6.0.10 |
| linux / linux_kernel | 6.1-rc1 | 6.1-rc1.x |
| linux / linux_kernel | 6.1-rc2 | 6.1-rc2.x |
| linux / linux_kernel | 6.1-rc3 | 6.1-rc3.x |
| linux / linux_kernel | 6.1-rc4 | 6.1-rc4.x |
| linux / linux_kernel | 6.1-rc5 | 6.1-rc5.x |
- 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
- https://git.kernel.org/stable/c/b119bedbefb7dd9ed8bf8cb9f1056504250d610e
- https://git.kernel.org/stable/c/bbd53d05c4c892080ef3b617eff4f57903acecb9
- https://git.kernel.org/stable/c/d4b8394725079670be309f9a35ad88a8cbbaaefd
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