wifi: mt76: mt7915: release hif2 reference on probe IRQ failure
Noroxi assessment
Priority: Monitor (action score 0/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.20% (FIRST EPSS).
- Fixed version: Linux Linux 2a434d2637b9c9be9bcc8a84dc46880cc1446643, 5c30a6350a300fbb800831f1b4373b2f59e03410, 8370aebd26a9dfa2e0de665e3ab504c0e97ee730; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1.
Low priority for now. Upgrade to Linux Linux 2a434d2637b9c9be9bcc8a84dc46880cc1446643, 5c30a6350a300fbb800831f1b4373b2f59e03410, 8370aebd26a9dfa2e0de665e3ab504c0e97ee730; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: release hif2 reference on probe IRQ failure The hif2 reference obtained by mt7915_pci_init_hif2() is only released on error paths that key off dev->hif2, which is not assigned until after the IRQ setup. If pci_alloc_irq_vectors() or the primary devm_request_irq() fails, the reference leaks. Drop it explicitly on those paths via mt7915_put_hif2().
- Published
- Sep 17, 2026
- Updated
- Oct 19, 2026
- EPSS
- 0.2% · 9th percentile
- CWE
- —
Report tools
Action score
0
Monitor
Low priority for now.
- CVSS
- 0 / 40 · —
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
—
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 5.19affected
- f68d67623dec9445960b52a0e9e8e60297596b4b and later · before 8a2e38019846da29a112fac4dd96fe5bfa298fafaffected · git
- f68d67623dec9445960b52a0e9e8e60297596b4b and later · before 2a434d2637b9c9be9bcc8a84dc46880cc1446643affected · git
- f68d67623dec9445960b52a0e9e8e60297596b4b and later · before 5c30a6350a300fbb800831f1b4373b2f59e03410affected · git
- f68d67623dec9445960b52a0e9e8e60297596b4b and later · before ed5cc46a3c8f4fe7f549c661914d8d835169acc0affected · git
- f68d67623dec9445960b52a0e9e8e60297596b4b and later · before fb9c7b4c238b4e5469a11a1fb8cf332f6193b995affected · git
- f68d67623dec9445960b52a0e9e8e60297596b4b and later · before 8370aebd26a9dfa2e0de665e3ab504c0e97ee730affected · git
- before 5.19not affected · semver
- 6.1.188 and later · up to and including 6.1.*not affected · semver
- 6.6.157 and later · up to and including 6.6.*not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 6.1.190-1 | 6.1.190-1 |
| Debian:12 | linux-6.12 | before 6.12.111-1~deb12u1 | 6.12.111-1~deb12u1 |
| Debian:13 | linux | before 6.12.111-1 | 6.12.111-1 |
| Debian:14 | linux | before 7.2.6-1 | 7.2.6-1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation40Plan
- CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment40Plan
- CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()40Plan
Published before and after this one in the same product
- ← EarlierCVE-2026-90350Sep 17, 2026 · wifi: mt76: reject out-of-range link ids in mt76_vif_link()0Monitor
- ← EarlierCVE-2026-90351Sep 17, 2026 · wifi: mt76: mt7996: do not attach hif2 WED when the main WED attach failed0Monitor
- Later →CVE-2026-90353Sep 17, 2026 · wifi: mt76: mt7915: fix ext PHY use-after-free on register error path28Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 2a434d2637b9c9be9bcc8a84dc46880cc1446643 | Vendor (CNA) |
| Linux Linux | 5c30a6350a300fbb800831f1b4373b2f59e03410 | Vendor (CNA) |
| Linux Linux | 8370aebd26a9dfa2e0de665e3ab504c0e97ee730 | Vendor (CNA) |
| Linux Linux | 8a2e38019846da29a112fac4dd96fe5bfa298faf | Vendor (CNA) |
| Linux Linux | ed5cc46a3c8f4fe7f549c661914d8d835169acc0 | Vendor (CNA) |
| Linux Linux | fb9c7b4c238b4e5469a11a1fb8cf332f6193b995 | Vendor (CNA) |
| azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 | — | Microsoft (MSRC) |
| azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 | 6.6.157.1-1 · Release Notes | Microsoft (MSRC) |
| debian:linux | 6.1.190-1 · Debian:12 | Package registry (OSV) |
| debian:linux | 6.12.111-1 · Debian:13 | Package registry (OSV) |
| debian:linux-6.12 | 6.12.111-1~deb12u1 · Debian:12 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
No CVSS vector for this record, so attack conditions can't be derived.
Weakness class (CWE)
—
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (5 more)Show less
- git.kernel.org/stable/c/5c30a6350a300fbb800831f1b4373b2f59e03410
- git.kernel.org/stable/c/8370aebd26a9dfa2e0de665e3ab504c0e97ee730
- git.kernel.org/stable/c/8a2e38019846da29a112fac4dd96fe5bfa298faf
- git.kernel.org/stable/c/ed5cc46a3c8f4fe7f549c661914d8d835169acc0
- git.kernel.org/stable/c/fb9c7b4c238b4e5469a11a1fb8cf332f6193b995
Vendor advisories and official records. Exploit/PoC links are deliberately left out.