CVE-2022-49212

medium

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.

References

https://git.kernel.org/stable/c/fecbd4a317c95d73c849648c406bcf1b6a0ec1cf

https://git.kernel.org/stable/c/fe0e2ce5c87e9c0b9485ff566362030aa55972cf

https://git.kernel.org/stable/c/f1694169f3674cdf7553aed06864254635679878

https://git.kernel.org/stable/c/a3587259ae553e41d1ce8c7435351a5d6b299a11

https://git.kernel.org/stable/c/9b08d211db4c447eb1a07df65e45e0aa772e0fa6

https://git.kernel.org/stable/c/9843c9c98f26c6ad843260b19bfdaa2598f2ae1e

https://git.kernel.org/stable/c/8baea2b96fa90af8d0f937caf4cf2105ee094d93

https://git.kernel.org/stable/c/0856bf27057561f42b37df111603cf5a0d040294

Details

Source: Mitre, NVD

Published: 2025-02-26

Updated: 2025-02-26

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium