CVE - CVE-2022-49410

CVE-ID
CVE-2022-49410	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: tracing: Fix potential double free in create_var_ref() In create_var_ref(), init_var_ref() is called to initialize the fields of variable ref_field, which is allocated in the previous function call to create_hist_field(). Function init_var_ref() allocates the corresponding fields such as ref_field->system, but frees these fields when the function encounters an error. The caller later calls destroy_hist_field() to conduct error handling, which frees the fields and the variable itself. This results in double free of the fields which are already freed in the previous function. Fix this by storing NULL to the corresponding fields when they are freed in init_var_ref().
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/058cb6d86b9789377216c936506b346aaa1eb581 URL:https://git.kernel.org/stable/c/058cb6d86b9789377216c936506b346aaa1eb581 MISC:https://git.kernel.org/stable/c/37443b3508b8cce6832f8d25cb4550b2f7801f50 URL:https://git.kernel.org/stable/c/37443b3508b8cce6832f8d25cb4550b2f7801f50 MISC:https://git.kernel.org/stable/c/4fdfb15e08598711dbf50daf56a33965232daf0e URL:https://git.kernel.org/stable/c/4fdfb15e08598711dbf50daf56a33965232daf0e MISC:https://git.kernel.org/stable/c/99696a2592bca641eb88cc9a80c90e591afebd0f URL:https://git.kernel.org/stable/c/99696a2592bca641eb88cc9a80c90e591afebd0f MISC:https://git.kernel.org/stable/c/bd83ff3bbfb003832481c9bff999d12385f396ae URL:https://git.kernel.org/stable/c/bd83ff3bbfb003832481c9bff999d12385f396ae MISC:https://git.kernel.org/stable/c/c27f744ceefadc7bbeb14233b6abc150ced617d2 URL:https://git.kernel.org/stable/c/c27f744ceefadc7bbeb14233b6abc150ced617d2 MISC:https://git.kernel.org/stable/c/f8b383f83cb573152c577eca1ef101e89995b72a URL:https://git.kernel.org/stable/c/f8b383f83cb573152c577eca1ef101e89995b72a
Assigning CNA
kernel.org
Date Record Created
20250226	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 (20250226)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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