CVE-2022-49836
MEDIUM severity · CVSS 5.5 · CWE-401
5.5CVSS MEDIUM
Summary
In the Linux kernel, the following vulnerability has been resolved: siox: fix possible memory leak in siox_device_add() If device_register() returns error in siox_device_add(), the name allocated by dev_set_name() need be freed. As comment of device_register() says, it should use put_device() to give up the reference in the error path. So fix this by calling put_device(), then the name can be freed in kobject_cleanup(), and sdevice is freed in siox_device_release(), set it to null in error path.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/0a5da069603ecc3d7aa09167450235462adaa295 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/0a5da069603ecc3d7aa09167450235462adaa295Patch
- https://git.kernel.org/stable/c/5d03c2911c529ea4d6ebfec53425f1091e8d402bPatch
- https://git.kernel.org/stable/c/6e63153db50059fb78b8a8447b132664887d24e3Patch
- https://git.kernel.org/stable/c/a4b5423f88a17a36550ae8c16c46779b1ee42f4bPatch
- https://git.kernel.org/stable/c/d9c31e728843259209fb530c59995e4fe262699fPatch
- https://git.kernel.org/stable/c/f9fe7ba4ea5b24ffdf8e125f660aca3ba4a147fbPatch