CVE-2026-90354wifi: mt76: mt7915: fix double hif2 init on the non-WED path
Updated under an hour ago ()
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from cacdd67812c6df824704ac078f1770188a485ff9 before eac18fadc791928379b179e54636494b92f8cf86; from cacdd67812c6df824704ac078f1770188a485ff9 before 927fe8c0eb8c10295bc0018c8faa4d91f8fe98c6; from cacdd67812c6df824704ac078f1770188a485ff9 before bd2e8f535ae35beb45a7fcc17ec9bbf8dc4db5fe; from cacdd67812c6df824704ac078f1770188a485ff9 before 249cbaa1873550689fab136b74982cbba74c4169; from cacdd67812c6df824704ac078f1770188a485ff9 before 29fbc5256c2d8448f084ff179d2e5092ecd1fc54; from cacdd67812c6df824704ac078f1770188a485ff9 before 3ae8ad277e2819a281b0e36b55633c8515c16ce7 | CNA record |
References
- https://git.kernel.org/stable/c/eac18fadc791928379b179e54636494b92f8cf86
- https://git.kernel.org/stable/c/927fe8c0eb8c10295bc0018c8faa4d91f8fe98c6
- https://git.kernel.org/stable/c/bd2e8f535ae35beb45a7fcc17ec9bbf8dc4db5fe
- https://git.kernel.org/stable/c/249cbaa1873550689fab136b74982cbba74c4169
- https://git.kernel.org/stable/c/29fbc5256c2d8448f084ff179d2e5092ecd1fc54
- https://git.kernel.org/stable/c/3ae8ad277e2819a281b0e36b55633c8515c16ce7
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.