net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-43149
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 12:16:32 UTC
Updated2026-05-13 20:15:21 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean() The priv->rx_buffer and priv->tx_buffer are alloc'd together as contiguous buffers in uhdlc_init() but freed as two buffers in uhdlc_memclean(). Change the cleanup to only call dma_free_coherent() once on the whole buffer.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected c19b6d246a35627c3a69b2fa6bdece212b48214b 6496fb830cbb741d831225cc4e7e5601c6e42970 git Not specified
CNA Linux Linux affected c19b6d246a35627c3a69b2fa6bdece212b48214b ba8d8429e5d6c36f9a654d2b96b9e043c43d92b4 git Not specified
CNA Linux Linux affected c19b6d246a35627c3a69b2fa6bdece212b48214b 011ae5dd84dc9f05eb9b8e1adff44252ac776e7b git Not specified
CNA Linux Linux affected c19b6d246a35627c3a69b2fa6bdece212b48214b 0f85a9655445e67bb0238cfc983d7c383b54938e git Not specified
CNA Linux Linux affected c19b6d246a35627c3a69b2fa6bdece212b48214b 84b932bc9899d43e5829e6cf088b72d73a922b2b git Not specified
CNA Linux Linux affected c19b6d246a35627c3a69b2fa6bdece212b48214b d8a522085d09b30aba1016daf1dddac37c0f0285 git Not specified
CNA Linux Linux affected c19b6d246a35627c3a69b2fa6bdece212b48214b d68994e37ac3b285692559776e0279a88a3b5f8d git Not specified
CNA Linux Linux affected c19b6d246a35627c3a69b2fa6bdece212b48214b 36bd7d5deef936c4e1e3cd341598140e5c14c1d3 git Not specified
CNA Linux Linux affected 4.8 Not specified
CNA Linux Linux unaffected 4.8 semver Not specified
CNA Linux Linux unaffected 5.10.252 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.202 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.165 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.128 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.75 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.16 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.6 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/36bd7d5deef936c4e1e3cd341598140e5c14c1d3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/d8a522085d09b30aba1016daf1dddac37c0f0285 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/0f85a9655445e67bb0238cfc983d7c383b54938e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/6496fb830cbb741d831225cc4e7e5601c6e42970 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/d68994e37ac3b285692559776e0279a88a3b5f8d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/84b932bc9899d43e5829e6cf088b72d73a922b2b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/011ae5dd84dc9f05eb9b8e1adff44252ac776e7b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ba8d8429e5d6c36f9a654d2b96b9e043c43d92b4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report