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LIN1021-7568 : Security Advisory - linux - CVE-2021-47058

Created: Feb 29, 2024    Updated: Apr 4, 2024
Resolved Date: Apr 4, 2024
Found In Version:
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Kernel


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.
So, set debugfs_name to NULL after it is freed.

CREATE(Triage):(User=admin) CVE-2021-47058 (
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