CVE-2022-49212

mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init

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.

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/0856bf27057561f42b37df111603cf5a0d040294	patch
https://git.kernel.org/stable/c/9843c9c98f26c6ad843260b19bfdaa2598f2ae1e	patch
https://git.kernel.org/stable/c/9b08d211db4c447eb1a07df65e45e0aa772e0fa6	patch
https://git.kernel.org/stable/c/a3587259ae553e41d1ce8c7435351a5d6b299a11	patch
https://git.kernel.org/stable/c/fe0e2ce5c87e9c0b9485ff566362030aa55972cf	patch
https://git.kernel.org/stable/c/8baea2b96fa90af8d0f937caf4cf2105ee094d93	patch
https://git.kernel.org/stable/c/f1694169f3674cdf7553aed06864254635679878	patch
https://git.kernel.org/stable/c/fecbd4a317c95d73c849648c406bcf1b6a0ec1cf	patch

Frequently Asked Questions

What is the severity of CVE-2022-49212?: CVE-2022-49212 has been scored as a medium severity vulnerability.
How to fix CVE-2022-49212?: To fix CVE-2022-49212, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-49212 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-49212 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-49212?: CVE-2022-49212 affects Linux Linux, Linux Linux.

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