CVE-2022-49455
Linux Kernel Double Free in OCXL
Description
In the Linux kernel, the following vulnerability has been resolved: misc: ocxl: fix possible double free in ocxl_file_register_afu info_release() will be called in device_unregister() when info->dev's reference count is 0. So there is no need to call ocxl_afu_put() and kfree() again. Fix this by adding free_minor() and return to err_unregister error path.
INFO
Published Date :
Feb. 26, 2025, 7:01 a.m.
Last Modified :
March 17, 2025, 4:11 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-2022-49455.
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-49455 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49455 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.
-
Initial Analysis by [email protected]
Mar. 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) 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) 5.2 up to (excluding) 5.4.198 Added Reference Type kernel.org: https://git.kernel.org/stable/c/252768d32e92c1214aeebb5fec0844ca479bcf5c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8fb674216835e1f0c143762696d645facebb4685 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/950cf957fe34d40d63dfa3bf3968210430b6491e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9e9087cf34ee69f4e95d146ac29385d6e367a97b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/de65c32ace9aa70d51facc61ba986607075e3a25 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ee89d8dee55ab4b3b8ad8b70866b2841ba334767 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: misc: ocxl: fix possible double free in ocxl_file_register_afu info_release() will be called in device_unregister() when info->dev's reference count is 0. So there is no need to call ocxl_afu_put() and kfree() again. Fix this by adding free_minor() and return to err_unregister error path. Added Reference https://git.kernel.org/stable/c/252768d32e92c1214aeebb5fec0844ca479bcf5c Added Reference https://git.kernel.org/stable/c/8fb674216835e1f0c143762696d645facebb4685 Added Reference https://git.kernel.org/stable/c/950cf957fe34d40d63dfa3bf3968210430b6491e Added Reference https://git.kernel.org/stable/c/9e9087cf34ee69f4e95d146ac29385d6e367a97b Added Reference https://git.kernel.org/stable/c/de65c32ace9aa70d51facc61ba986607075e3a25 Added Reference https://git.kernel.org/stable/c/ee89d8dee55ab4b3b8ad8b70866b2841ba334767
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49455 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-2022-49455
weaknesses.