wifi: mt76: mt7915: fix double hif2 init on the non-WED path

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-90354
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-17 17:17:34 UTC
Updated2026-09-17 17:17:34 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: fix double hif2 init on the non-WED path mt7915_pci_init_hif2() was called unconditionally and again inside the WED-inactive branch. The helper increments the global hif_idx, writes the PCIe RECOG_ID register and takes a get_device() reference via mt7915_pci_get_hif2(), while removal only drops one reference. On non-WED dual-hif hardware this double-incremented hif_idx, wrote RECOG_ID twice and leaked a device reference. Only the call inside the WED-inactive branch is correct; drop the unconditional one. hif2 is already initialised to NULL.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected cacdd67812c6df824704ac078f1770188a485ff9 eac18fadc791928379b179e54636494b92f8cf86 git Not specified
CNA Linux Linux affected cacdd67812c6df824704ac078f1770188a485ff9 927fe8c0eb8c10295bc0018c8faa4d91f8fe98c6 git Not specified
CNA Linux Linux affected cacdd67812c6df824704ac078f1770188a485ff9 bd2e8f535ae35beb45a7fcc17ec9bbf8dc4db5fe git Not specified
CNA Linux Linux affected cacdd67812c6df824704ac078f1770188a485ff9 249cbaa1873550689fab136b74982cbba74c4169 git Not specified
CNA Linux Linux affected cacdd67812c6df824704ac078f1770188a485ff9 29fbc5256c2d8448f084ff179d2e5092ecd1fc54 git Not specified
CNA Linux Linux affected cacdd67812c6df824704ac078f1770188a485ff9 3ae8ad277e2819a281b0e36b55633c8515c16ce7 git Not specified
CNA Linux Linux affected 5.18 Not specified
CNA Linux Linux unaffected 5.18 semver Not specified
CNA Linux Linux unaffected 6.1.188 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.157 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.110 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.52 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.6 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/29fbc5256c2d8448f084ff179d2e5092ecd1fc54 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/927fe8c0eb8c10295bc0018c8faa4d91f8fe98c6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3ae8ad277e2819a281b0e36b55633c8515c16ce7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/249cbaa1873550689fab136b74982cbba74c4169 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/eac18fadc791928379b179e54636494b92f8cf86 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/bd2e8f535ae35beb45a7fcc17ec9bbf8dc4db5fe 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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