CVE-2026-97482 — usb: gadget: goku_udc: avoid NULL deref of dev->driver in INT_USBRESET log
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: goku_udc: avoid NULL deref of dev->driver in INT_USBRESET log goku_irq() handles a number of bus events under a single ep0 path. It already guards the gadget driver suspend/resume callbacks against a NULL ->driver: if (dev->gadget.speed != USB_SPEED_UNKNOWN && dev->driver && dev->driver->resume) { spin_unlock(&dev->lock); dev->driver->resume(&dev->gadget); ... } but the very next branch unconditionally dereferences dev->driver when an INT_USBRESET arrives: if (stat & INT_USBRESET) { ACK(INT_USBRESET); INFO(dev, "USB reset done, gadget %s\n", dev->driver->driver.name); } If the controller raises INT_USBRESET before any gadget driver has been bound (or after one has been unbound), dev->driver is NULL and the printk dereferences NULL. smatch flags the inconsistency: drivers/usb/gadget/udc/goku_udc.c:1618 goku_irq() error: we previously assumed 'dev->driver' could be null (see line 1607) Fall back to a placeholder when the gadget driver is not bound. No functional change while a gadget driver is bound.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- EPSS 0.2% (30-day exploitation probability)+1
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
- No fix documented in the sources: reduce exposure and monitor the vendor advisory.
- Search available logs for exploit probes, errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Linux | Linux | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < d7b33afbf9b54b61cb423af9663df54eae11d3b1≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < ea2901a4a90afc662e4d023542d91f10ab10fd3c≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < 999ff3bf665f2abfb6af519ef3d6d42b061d3c15≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < a018d4195114ca2cf79858cc45c98581dee4795b≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < 10d7fc3008d5b7ec03af8e08927f1d090014c2af≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < 28d78783a871cdb7a637dcb72452ff7d303430ae≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < 5bf5e3fba9bc7dfd69701521dbe9809f8ccbdb02version 2.6.12 | Vulnerable | CVE Program (cve.org) e CISA ADP |
EPSS over time FIRST
Oct 15, 2026 → Oct 16, 2026 · 2 reading(s) · max 0.17%
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Not enough vector or weakness data: use the affected application’s logs as a starting point.
Timeline
What happened to this CVE, newest first.
- 2026
- Record published
- Affected products added · linux/linux
- Source status changed · → Received
- Record created in this database
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 1× Official description updated · Oct 15, 2026 – Oct 15, 2026
References
7 on the record
- git.kernel.org/stable/c/ea2901a4a90afc662e4d023542d91f10ab10fd3c
- git.kernel.org/stable/c/5bf5e3fba9bc7dfd69701521dbe9809f8ccbdb02
- git.kernel.org/stable/c/999ff3bf665f2abfb6af519ef3d6d42b061d3c15
- git.kernel.org/stable/c/10d7fc3008d5b7ec03af8e08927f1d090014c2af
- git.kernel.org/stable/c/28d78783a871cdb7a637dcb72452ff7d303430ae
- git.kernel.org/stable/c/a018d4195114ca2cf79858cc45c98581dee4795b
- git.kernel.org/stable/c/d7b33afbf9b54b61cb423af9663df54eae11d3b1
Elsewhere on this site
Related CVEs (same products)
- Critical CVE-2026-99999 ipv4: validate checksum_start before completing checksum 2d
- Unknown CVE-2026-98432 ipv4: free inet_opt and ireq_opt after an RCU grace period 2d
- Unknown CVE-2026-98430 RDMA/efa: Keep admin queues alive while IRQ is registered 3d
- Unknown CVE-2026-98424 wifi: cfg80211: undo netns switch if renaming the wiphy fails 3d
- Unknown CVE-2026-98425 wifi: mac80211: don't warn when an IBSS has no channel to scan 3d
- Unknown CVE-2026-98426 wifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path 3d
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No CVSS score published by NVD, the CNA, CISA or GitHub so far.
- No fixed version, patch or mitigation documented.
- No CISA SSVC assessment.
- No CWE classification.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2026-97482 is "usb: gadget: goku_udc: avoid NULL deref of dev->driver in INT_USBRESET log", rated Unknown. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. EPSS 0.17% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
Comments
Moderated technical discussion. Read the community guidelines.
No comments yet.
Sign in or create an account to comment and suggest corrections.