CVE - CVE-2021-47058

CVE-ID
CVE-2021-47058	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: regmap: set debugfs_name to NULL after it is freed There is a upstream commit cffa4b2122f5("regmap:debugfs: Fix a memory leak when calling regmap_attach_dev") that adds a if condition when create name for debugfs_name. With below function invoking logical, debugfs_name is freed in regmap_debugfs_exit(), but it is not created again because of the if condition introduced by above commit. regmap_reinit_cache() regmap_debugfs_exit() ... regmap_debugfs_init() So, set debugfs_name to NULL after it is freed.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/2dc1554d5f0fdaf47cc5bea442b84b9226fea867 URL:https://git.kernel.org/stable/c/2dc1554d5f0fdaf47cc5bea442b84b9226fea867 MISC:https://git.kernel.org/stable/c/b9e569ae1da3a113b3acee8703c94777fd20938a URL:https://git.kernel.org/stable/c/b9e569ae1da3a113b3acee8703c94777fd20938a MISC:https://git.kernel.org/stable/c/c764e375ae647832de1ee73d43a4bb3ef8a8f43d URL:https://git.kernel.org/stable/c/c764e375ae647832de1ee73d43a4bb3ef8a8f43d MISC:https://git.kernel.org/stable/c/d8897f7b2283a500666c85ef06e820df38ed7b52 URL:https://git.kernel.org/stable/c/d8897f7b2283a500666c85ef06e820df38ed7b52 MISC:https://git.kernel.org/stable/c/e41a962f82e7afb5b1ee644f48ad0b3aee656268 URL:https://git.kernel.org/stable/c/e41a962f82e7afb5b1ee644f48ad0b3aee656268 MISC:https://git.kernel.org/stable/c/eb949f891226c012138ffd9df90d1e509f428ae6 URL:https://git.kernel.org/stable/c/eb949f891226c012138ffd9df90d1e509f428ae6
Assigning CNA
kernel.org
Date Record Created
20240229	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240229)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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