CVE-2022-49212
Atmel MTD Linux Kernel Reference Count Leak
Description
In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init The reference counting issue happens in several error handling paths on a refcounted object "nc->dmac". In these paths, the function simply returns the error code, forgetting to balance the reference count of "nc->dmac", increased earlier by dma_request_channel(), which may cause refcount leaks. Fix it by decrementing the refcount of specific object in those error paths.
INFO
Published Date :
Feb. 26, 2025, 7 a.m.
Last Modified :
March 18, 2025, 7:31 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
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-2022-49212.
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-2022-49212 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49212 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]
Mar. 18, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.189 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.33 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.17 up to (excluding) 5.17.2 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.238 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.110 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.16.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.12 up to (excluding) 4.14.276 Added Reference Type kernel.org: https://git.kernel.org/stable/c/0856bf27057561f42b37df111603cf5a0d040294 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8baea2b96fa90af8d0f937caf4cf2105ee094d93 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9843c9c98f26c6ad843260b19bfdaa2598f2ae1e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9b08d211db4c447eb1a07df65e45e0aa772e0fa6 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a3587259ae553e41d1ce8c7435351a5d6b299a11 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f1694169f3674cdf7553aed06864254635679878 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fe0e2ce5c87e9c0b9485ff566362030aa55972cf Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fecbd4a317c95d73c849648c406bcf1b6a0ec1cf 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: mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init The reference counting issue happens in several error handling paths on a refcounted object "nc->dmac". In these paths, the function simply returns the error code, forgetting to balance the reference count of "nc->dmac", increased earlier by dma_request_channel(), which may cause refcount leaks. Fix it by decrementing the refcount of specific object in those error paths. Added Reference https://git.kernel.org/stable/c/0856bf27057561f42b37df111603cf5a0d040294 Added Reference https://git.kernel.org/stable/c/8baea2b96fa90af8d0f937caf4cf2105ee094d93 Added Reference https://git.kernel.org/stable/c/9843c9c98f26c6ad843260b19bfdaa2598f2ae1e Added Reference https://git.kernel.org/stable/c/9b08d211db4c447eb1a07df65e45e0aa772e0fa6 Added Reference https://git.kernel.org/stable/c/a3587259ae553e41d1ce8c7435351a5d6b299a11 Added Reference https://git.kernel.org/stable/c/f1694169f3674cdf7553aed06864254635679878 Added Reference https://git.kernel.org/stable/c/fe0e2ce5c87e9c0b9485ff566362030aa55972cf Added Reference https://git.kernel.org/stable/c/fecbd4a317c95d73c849648c406bcf1b6a0ec1cf
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49212 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-2022-49212
weaknesses.