CVE-2022-49212

mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init

State: Published
Severity: 5.5 Medium
Published: Feb 26, 2025
Updated: May 11, 2026
Reserved: Feb 26, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	f88fc122cc34c2545dec9562eaab121494e401ef to before 0856bf27057561f42b37df111603cf5a0d040294Affected f88fc122cc34c2545dec9562eaab121494e401ef to before 9843c9c98f26c6ad843260b19bfdaa2598f2ae1eAffected f88fc122cc34c2545dec9562eaab121494e401ef to before 9b08d211db4c447eb1a07df65e45e0aa772e0fa6Affected f88fc122cc34c2545dec9562eaab121494e401ef to before a3587259ae553e41d1ce8c7435351a5d6b299a11Affected f88fc122cc34c2545dec9562eaab121494e401ef to before fe0e2ce5c87e9c0b9485ff566362030aa55972cfAffected f88fc122cc34c2545dec9562eaab121494e401ef to before 8baea2b96fa90af8d0f937caf4cf2105ee094d93Affected f88fc122cc34c2545dec9562eaab121494e401ef to before f1694169f3674cdf7553aed06864254635679878Affected f88fc122cc34c2545dec9562eaab121494e401ef to before fecbd4a317c95d73c849648c406bcf1b6a0ec1cfAffected
LinuxLinux	4.12Affected before 4.12Not affected 4.14.276 through 4.14.Not affected 4.19.238 through 4.19.Not affected 5.4.189 through 5.4.Not affected 5.10.110 through 5.10.Not affected 5.15.33 through 5.15.Not affected 5.16.19 through 5.16.Not affected 5.17.2 through 5.17.*Not affected 5.18 and laterNot affected

Product

Versions

LinuxLinux

f88fc122cc34c2545dec9562eaab121494e401ef to before 0856bf27057561f42b37df111603cf5a0d040294Affected
f88fc122cc34c2545dec9562eaab121494e401ef to before 9843c9c98f26c6ad843260b19bfdaa2598f2ae1eAffected
f88fc122cc34c2545dec9562eaab121494e401ef to before 9b08d211db4c447eb1a07df65e45e0aa772e0fa6Affected
f88fc122cc34c2545dec9562eaab121494e401ef to before a3587259ae553e41d1ce8c7435351a5d6b299a11Affected
f88fc122cc34c2545dec9562eaab121494e401ef to before fe0e2ce5c87e9c0b9485ff566362030aa55972cfAffected
f88fc122cc34c2545dec9562eaab121494e401ef to before 8baea2b96fa90af8d0f937caf4cf2105ee094d93Affected
f88fc122cc34c2545dec9562eaab121494e401ef to before f1694169f3674cdf7553aed06864254635679878Affected
f88fc122cc34c2545dec9562eaab121494e401ef to before fecbd4a317c95d73c849648c406bcf1b6a0ec1cfAffected

LinuxLinux

4.12Affected
before 4.12Not affected
4.14.276 through 4.14.*Not affected
4.19.238 through 4.19.*Not affected
5.4.189 through 5.4.*Not affected
5.10.110 through 5.10.*Not affected
5.15.33 through 5.15.*Not affected
5.16.19 through 5.16.*Not affected
5.17.2 through 5.17.*Not affected
5.18 and laterNot affected

References

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