CVE-2022-49410
Linux Kernel: Double Free Vulnerability in Tracing Module
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().
INFO
Published Date :
Feb. 26, 2025, 7:01 a.m.
Last Modified :
April 17, 2025, 8:31 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-49410.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2022-49410 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49410 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Apr. 17, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-415 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.198 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.121 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.46 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.17.14 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.18 up to (excluding) 5.18.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.17 up to (excluding) 4.19.247 Added Reference Type kernel.org: https://git.kernel.org/stable/c/058cb6d86b9789377216c936506b346aaa1eb581 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/37443b3508b8cce6832f8d25cb4550b2f7801f50 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4fdfb15e08598711dbf50daf56a33965232daf0e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/99696a2592bca641eb88cc9a80c90e591afebd0f Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/bd83ff3bbfb003832481c9bff999d12385f396ae Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c27f744ceefadc7bbeb14233b6abc150ced617d2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f8b383f83cb573152c577eca1ef101e89995b72a Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added 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(). Added Reference https://git.kernel.org/stable/c/058cb6d86b9789377216c936506b346aaa1eb581 Added Reference https://git.kernel.org/stable/c/37443b3508b8cce6832f8d25cb4550b2f7801f50 Added Reference https://git.kernel.org/stable/c/4fdfb15e08598711dbf50daf56a33965232daf0e Added Reference https://git.kernel.org/stable/c/99696a2592bca641eb88cc9a80c90e591afebd0f Added Reference https://git.kernel.org/stable/c/bd83ff3bbfb003832481c9bff999d12385f396ae Added Reference https://git.kernel.org/stable/c/c27f744ceefadc7bbeb14233b6abc150ced617d2 Added Reference https://git.kernel.org/stable/c/f8b383f83cb573152c577eca1ef101e89995b72a
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49410 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49410
weaknesses.