VulnerabilityPublished 18 Oct 2026Updated 21 Oct 2026

CVE-2026-98767: Linux kernel · usb: dwc3: gadget: fix IRQ storm on invalid event buffer count

Source GCVE Database

Authoritative record:CVE-2026-98767

Not known to be exploited · fixed in f51cadb02b439850ab411df0a2cf4288a66d42e2 : patch Linux kernel soon.

Data as of 26 Oct 2026, 14:05 UTC

Severity

High

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in f51cadb02b439850ab411df0a2cf4288a66d42e2, ba927133b301894e7d24099afbb701887c8cd2f1, 96918ca25ff467c25675478fc79393df4ae9d74c +9

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-7v54-4578-623x

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected >=6.6.89 <6.6.160 >=6.12.26 <6.12.113 >=5.4.293 <5.5 >=5.10.237 <5.11 >=5.15.181 <5.16 >=6.1.136 <6.2 >=6.14.5 <6.15	Fixed in f51cadb02b439850ab411df0a2cf4288a66d42e2 ba927133b301894e7d24099afbb701887c8cd2f1 96918ca25ff467c25675478fc79393df4ae9d74c 6cd82563bb270e03fe2f91324660ea14e3ce5d1a 6.15 6.12.113 6.6.160 6.2 5.16 5.11 5.5 1ff77cbefe5a653ea12874c213ea4bd0d72c1067
LinuxLinux	Affected =6.15	Fixed in–

AI-suggested

If you cannot patch yet, avoid conditions that could cause invalid event buffer counts in the DWC3 USB gadget driver. The described fix involves clearing the interrupt source by writing back the bogus count and scheduling error recovery, but official patches or updates should be monitored.

Description

A vulnerability in the Linux kernel's USB DWC3 gadget driver causes an interrupt storm leading to a kernel panic. The issue arises when the dwc3_check_event_buf() function reads an invalid event buffer count exceeding the buffer length and fails to clear the interrupt source, resulting in a level-triggered IRQ storm and eventual kernel crash.

References

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