Riskcovery

CVE-2026-90354

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

State
Published
Severity
Not scored
Published
Sep 17, 2026
Updated
Oct 19, 2026
Reserved
Sep 11, 2026

Read the record on cve.org

Description

In 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • cacdd67812c6df824704ac078f1770188a485ff9 to before eac18fadc791928379b179e54636494b92f8cf86Affected
  • cacdd67812c6df824704ac078f1770188a485ff9 to before 927fe8c0eb8c10295bc0018c8faa4d91f8fe98c6Affected
  • cacdd67812c6df824704ac078f1770188a485ff9 to before bd2e8f535ae35beb45a7fcc17ec9bbf8dc4db5feAffected
  • cacdd67812c6df824704ac078f1770188a485ff9 to before 249cbaa1873550689fab136b74982cbba74c4169Affected
  • cacdd67812c6df824704ac078f1770188a485ff9 to before 29fbc5256c2d8448f084ff179d2e5092ecd1fc54Affected
  • cacdd67812c6df824704ac078f1770188a485ff9 to before 3ae8ad277e2819a281b0e36b55633c8515c16ce7Affected
LinuxLinux
  • 5.18Affected
  • before 5.18Not affected
  • 6.1.188 through 6.1.*Not affected
  • 6.6.157 through 6.6.*Not affected
  • 6.12.110 through 6.12.*Not affected
  • 6.18.52 through 6.18.*Not affected
  • 7.2.6 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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