CVE - CVE-2024-53198

CVE-ID
CVE-2024-53198	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: xen: Fix the issue of resource not being properly released in xenbus_dev_probe() This patch fixes an issue in the function xenbus_dev_probe(). In the xenbus_dev_probe() function, within the if (err) branch at line 313, the program incorrectly returns err directly without releasing the resources allocated by err = drv->probe(dev, id). As the return value is non-zero, the upper layers assume the processing logic has failed. However, the probe operation was performed earlier without a corresponding remove operation. Since the probe actually allocates resources, failing to perform the remove operation could lead to problems. To fix this issue, we followed the resource release logic of the xenbus_dev_remove() function by adding a new block fail_remove before the fail_put block. After entering the branch if (err) at line 313, the function will use a goto statement to jump to the fail_remove block, ensuring that the previously acquired resources are correctly released, thus preventing the reference count leak. This bug was identified by an experimental static analysis tool developed by our team. The tool specializes in analyzing reference count operations and detecting potential issues where resources are not properly managed. In this case, the tool flagged the missing release operation as a potential problem, which led to the development of this patch.
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/0aa9e30b5b4af5dd504801689d6d84c584290a45 URL:https://git.kernel.org/stable/c/0aa9e30b5b4af5dd504801689d6d84c584290a45 MISC:https://git.kernel.org/stable/c/217bdce88b104269b73603b84d0ab4dd04f481bc URL:https://git.kernel.org/stable/c/217bdce88b104269b73603b84d0ab4dd04f481bc MISC:https://git.kernel.org/stable/c/2f977a4c82d35d063f5fe198bbc501c4b1c5ea0e URL:https://git.kernel.org/stable/c/2f977a4c82d35d063f5fe198bbc501c4b1c5ea0e MISC:https://git.kernel.org/stable/c/3fc0996d2fefe61219375fd650601724b8cf2d30 URL:https://git.kernel.org/stable/c/3fc0996d2fefe61219375fd650601724b8cf2d30 MISC:https://git.kernel.org/stable/c/804b96f8d0a02fa10b92f28b2e042f9128ed3ffc URL:https://git.kernel.org/stable/c/804b96f8d0a02fa10b92f28b2e042f9128ed3ffc MISC:https://git.kernel.org/stable/c/87106169b4ce26f85561f953d13d1fd86d99b612 URL:https://git.kernel.org/stable/c/87106169b4ce26f85561f953d13d1fd86d99b612 MISC:https://git.kernel.org/stable/c/afc545da381ba0c651b2658966ac737032676f01 URL:https://git.kernel.org/stable/c/afc545da381ba0c651b2658966ac737032676f01 MISC:https://git.kernel.org/stable/c/e8823e6ff313465910edea07581627d85e68d9fd URL:https://git.kernel.org/stable/c/e8823e6ff313465910edea07581627d85e68d9fd
Assigning CNA
kernel.org
Date Record Created
20241119	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 (20241119)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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