mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init (Linux Linux)

CVE-2022-49212
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.27 % · percentile 19 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

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

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCISA-ADP
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected f88fc122cc34c2545dec9562eaab121494e401ef < 0856bf27057561f42b37df111603cf5a0d040294 ; affected f88fc122cc34c2545dec9562eaab121494e401ef < 9843c9c98f26c6ad843260b19bfdaa2598f2ae1e ; affected f88fc122cc34c2545dec9562eaab121494e401ef < 9b08d211db4c447eb1a07df65e45e0aa772e0fa6 ; affected f88fc122cc34c2545dec9562eaab121494e401ef < a3587259ae553e41d1ce8c7435351a5d6b299a11 ; affected f88fc122cc34c2545dec9562eaab121494e401ef < fe0e2ce5c87e9c0b9485ff566362030aa55972cf ; affected f88fc122cc34c2545dec9562eaab121494e401ef < 8baea2b96fa90af8d0f937caf4cf2105ee094d93
Linux · Linuxaffected 4.12 ; unaffected 0 < 4.12 ; unaffected 4.14.276 ≤ 4.14.* ; unaffected 4.19.238 ≤ 4.19.* ; unaffected 5.4.189 ≤ 5.4.* ; unaffected 5.10.110 ≤ 5.10.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD