CVE - CVE-2022-49951

CVE-ID
CVE-2022-49951	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: firmware_loader: Fix use-after-free during unregister In the following code within firmware_upload_unregister(), the call to device_unregister() could result in the dev_release function freeing the fw_upload_priv structure before it is dereferenced for the call to module_put(). This bug was found by the kernel test robot using CONFIG_KASAN while running the firmware selftests. device_unregister(&fw_sysfs->dev); module_put(fw_upload_priv->module); The problem is fixed by copying fw_upload_priv->module to a local variable for use when calling device_unregister().
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/8b40c38e37492b5bdf8e95b46b5cca9517a9957a URL:https://git.kernel.org/stable/c/8b40c38e37492b5bdf8e95b46b5cca9517a9957a MISC:https://git.kernel.org/stable/c/d380d40930a674c520a5b55f3be1eb17dc634ebc URL:https://git.kernel.org/stable/c/d380d40930a674c520a5b55f3be1eb17dc634ebc
Assigning CNA
kernel.org
Date Record Created
20250618	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 (20250618)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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