CVE-2021-47472
kernel: net: mdiobus: Fix memory leak in __mdiobus_register
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 22, 2024
Updated · October 21, 2026
Description
[REJECTED CVE] A memory leak bug was identified in the Linux kernel's net: mdiobus module. When device_register() fails during __mdiobus_register, the reference count is not decremented via put_device(), resulting in unreferenced memory allocations and subsequent leaks.
Statement
This CVE has been rejected upstream: https://lore.kernel.org/linux-cve-announce/2024061703-REJECTED-713c@gregkh/
Red Hat has also evaluated this issue and determined that it does not meet the criteria to be classified as a security vulnerability. This assessment is based on the issue not posing a significant security risk, being a result of misconfiguration or usage error, or falling outside the scope of security considerations.
As such, this CVE has been marked as "Rejected" in alignment with Red Hat's vulnerability management policies.
If you have additional information or concerns regarding this determination, please contact Red Hat Product Security for further clarification.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 0CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:N
CWE-833 · Deadlock