Answer in brief
CVE-2026-98767 records a Unknown severity vulnerability in usb: dwc3: gadget: fix IRQ storm on invalid event buffer count. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=52a7c9d930b95aa8b1620edaba4818040c32631f <96918ca25ff467c25675478fc79393df4ae9d74c || >=63ccd26cd1f6600421795f6ca3e625076be06c9f <ba927133b301894e7d24099afbb701887c8cd2f1 || >=63ccd26cd1f6600421795f6ca3e625076be06c9f <f51cadb02b439850ab411df0a2cf4288a66d42e2 || >=63ccd26cd1f6600421795f6ca3e625076be06c9f <1ff77cbefe5a653ea12874c213ea4bd0d72c1067 || 015c39f38e69a491d2abd5e98869a500a9459b3b || b43225948b231b3f331194010f84512bee4d9f59 || c0079630f268843a25ed75226169cba40e0d8880 || a44547015287a19001384fe94dbff84c92ce4ee1 || c4d80e41cb42008dceb35e5dbf52574d93beac0d || 99d655119b870ee60e4dbf310aa9a1ed8d9ede3d || >=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 || >=6.6.89 <6.7 || >=6.14.5 <6.15 | 96918ca25ff467c25675478fc79393df4ae9d74c, ba927133b301894e7d24099afbb701887c8cd2f1, f51cadb02b439850ab411df0a2cf4288a66d42e2, 1ff77cbefe5a653ea12874c213ea4bd0d72c1067, 6.12.113, 5.5, 5.11, 5.16, 6.2, 6.7, 6.15 |
| Linux/Linuxgeneric | 6.15 | Not reported |
| Linux/Linuxgeneric | >=c4d80e41cb42008dceb35e5dbf52574d93beac0d <6cd82563bb270e03fe2f91324660ea14e3ce5d1a || >=52a7c9d930b95aa8b1620edaba4818040c32631f <96918ca25ff467c25675478fc79393df4ae9d74c || >=63ccd26cd1f6600421795f6ca3e625076be06c9f <ba927133b301894e7d24099afbb701887c8cd2f1 || >=63ccd26cd1f6600421795f6ca3e625076be06c9f <f51cadb02b439850ab411df0a2cf4288a66d42e2 || >=63ccd26cd1f6600421795f6ca3e625076be06c9f <1ff77cbefe5a653ea12874c213ea4bd0d72c1067 || 015c39f38e69a491d2abd5e98869a500a9459b3b || b43225948b231b3f331194010f84512bee4d9f59 || c0079630f268843a25ed75226169cba40e0d8880 || a44547015287a19001384fe94dbff84c92ce4ee1 || 99d655119b870ee60e4dbf310aa9a1ed8d9ede3d || >=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 | 6cd82563bb270e03fe2f91324660ea14e3ce5d1a, 96918ca25ff467c25675478fc79393df4ae9d74c, ba927133b301894e7d24099afbb701887c8cd2f1, f51cadb02b439850ab411df0a2cf4288a66d42e2, 1ff77cbefe5a653ea12874c213ea4bd0d72c1067, 6.6.160, 6.12.113, 5.5, 5.11, 5.16, 6.2, 6.15 |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: gadget: fix IRQ storm on invalid event buffer count When dwc3_check_event_buf() reads a GEVNTCOUNT value exceeding the event buffer length, commit 63ccd26cd1f6 ("usb: dwc3: gadget: check that event count does not exceed event buffer length") returns IRQ_NONE without writing back GEVNTCOUNT. Since the DWC3 interrupt is level-triggered, the uncleared IRQ source keeps the line asserted, causing a tight IRQ storm that accumulates 99,900 unhandled interrupts and triggers spurious.c:184 BUG -> kernel panic. The resulting call stack: __report_bad_irq+0xac/0xc8 note_interrupt+0x340/0x468 handle_irq_event+0xac/0xc0 handle_fasteoi_irq+0x120/0x228 gic_handle_irq+0x68/0x108 ... kernel BUG at kernel/irq/spurious.c:184 To reproduce, write a bogus value exceeding the event buffer length directly to the GEVNTCOUNT register: devmem <DWC3_BASE + 0xc40c> 4 0x1004 Write the bogus count back to GEVNTCOUNT to clear the IRQ source, consistent with the stale event clearing pattern in dwc3_event_buffers_setup(), and schedule error recovery to reinitialize the controller.
Quoted source text, attributed separately from HOL analysis.