{"api_version":"1","generated_at":"2026-10-18T17:22:20+00:00","cve":"CVE-2026-98767","urls":{"html":"https://cve.report/CVE-2026-98767","api":"https://cve.report/api/cve/CVE-2026-98767.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98767","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98767"},"summary":{"title":"usb: dwc3: gadget: fix IRQ storm on invalid event buffer count","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: dwc3: gadget: fix IRQ storm on invalid event buffer count\n\nWhen dwc3_check_event_buf() reads a GEVNTCOUNT value exceeding the\nevent buffer length, commit 63ccd26cd1f6 (\"usb: dwc3: gadget: check\nthat event count does not exceed event buffer length\") returns IRQ_NONE\nwithout writing back GEVNTCOUNT. Since the DWC3 interrupt is\nlevel-triggered, the uncleared IRQ source keeps the line asserted,\ncausing a tight IRQ storm that accumulates 99,900 unhandled interrupts\nand triggers spurious.c:184 BUG -> kernel panic.\n\nThe resulting call stack:\n  __report_bad_irq+0xac/0xc8\n  note_interrupt+0x340/0x468\n  handle_irq_event+0xac/0xc0\n  handle_fasteoi_irq+0x120/0x228\n  gic_handle_irq+0x68/0x108\n  ...\n  kernel BUG at kernel/irq/spurious.c:184\n\nTo reproduce, write a bogus value exceeding the event buffer length\ndirectly to the GEVNTCOUNT register:\n\n  devmem <DWC3_BASE + 0xc40c> 4 0x1004\n\nWrite the bogus count back to GEVNTCOUNT to clear the IRQ source,\nconsistent with the stale event clearing pattern in\ndwc3_event_buffers_setup(), and schedule error recovery to\nreinitialize the controller.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-18 16:17:30","updated_at":"2026-10-18 16:17:30"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/ba927133b301894e7d24099afbb701887c8cd2f1","name":"https://git.kernel.org/stable/c/ba927133b301894e7d24099afbb701887c8cd2f1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/96918ca25ff467c25675478fc79393df4ae9d74c","name":"https://git.kernel.org/stable/c/96918ca25ff467c25675478fc79393df4ae9d74c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f51cadb02b439850ab411df0a2cf4288a66d42e2","name":"https://git.kernel.org/stable/c/f51cadb02b439850ab411df0a2cf4288a66d42e2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1ff77cbefe5a653ea12874c213ea4bd0d72c1067","name":"https://git.kernel.org/stable/c/1ff77cbefe5a653ea12874c213ea4bd0d72c1067","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98767","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98767","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 52a7c9d930b95aa8b1620edaba4818040c32631f 96918ca25ff467c25675478fc79393df4ae9d74c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 63ccd26cd1f6600421795f6ca3e625076be06c9f ba927133b301894e7d24099afbb701887c8cd2f1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 63ccd26cd1f6600421795f6ca3e625076be06c9f f51cadb02b439850ab411df0a2cf4288a66d42e2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 63ccd26cd1f6600421795f6ca3e625076be06c9f 1ff77cbefe5a653ea12874c213ea4bd0d72c1067 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 015c39f38e69a491d2abd5e98869a500a9459b3b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b43225948b231b3f331194010f84512bee4d9f59 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c0079630f268843a25ed75226169cba40e0d8880 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a44547015287a19001384fe94dbff84c92ce4ee1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c4d80e41cb42008dceb35e5dbf52574d93beac0d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 99d655119b870ee60e4dbf310aa9a1ed8d9ede3d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.12.26 6.12.113 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.4.293 5.5 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.10.237 5.11 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.15.181 5.16 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.1.136 6.2 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.6.89 6.7 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.14.5 6.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.113 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.56 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.10 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc6 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/dwc3/core.h","drivers/usb/dwc3/ep0.c","drivers/usb/dwc3/gadget.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"96918ca25ff467c25675478fc79393df4ae9d74c","status":"affected","version":"52a7c9d930b95aa8b1620edaba4818040c32631f","versionType":"git"},{"lessThan":"ba927133b301894e7d24099afbb701887c8cd2f1","status":"affected","version":"63ccd26cd1f6600421795f6ca3e625076be06c9f","versionType":"git"},{"lessThan":"f51cadb02b439850ab411df0a2cf4288a66d42e2","status":"affected","version":"63ccd26cd1f6600421795f6ca3e625076be06c9f","versionType":"git"},{"lessThan":"1ff77cbefe5a653ea12874c213ea4bd0d72c1067","status":"affected","version":"63ccd26cd1f6600421795f6ca3e625076be06c9f","versionType":"git"},{"status":"affected","version":"015c39f38e69a491d2abd5e98869a500a9459b3b","versionType":"git"},{"status":"affected","version":"b43225948b231b3f331194010f84512bee4d9f59","versionType":"git"},{"status":"affected","version":"c0079630f268843a25ed75226169cba40e0d8880","versionType":"git"},{"status":"affected","version":"a44547015287a19001384fe94dbff84c92ce4ee1","versionType":"git"},{"status":"affected","version":"c4d80e41cb42008dceb35e5dbf52574d93beac0d","versionType":"git"},{"status":"affected","version":"99d655119b870ee60e4dbf310aa9a1ed8d9ede3d","versionType":"git"},{"lessThan":"6.12.113","status":"affected","version":"6.12.26","versionType":"semver"},{"lessThan":"5.5","status":"affected","version":"5.4.293","versionType":"semver"},{"lessThan":"5.11","status":"affected","version":"5.10.237","versionType":"semver"},{"lessThan":"5.16","status":"affected","version":"5.15.181","versionType":"semver"},{"lessThan":"6.2","status":"affected","version":"6.1.136","versionType":"semver"},{"lessThan":"6.7","status":"affected","version":"6.6.89","versionType":"semver"},{"lessThan":"6.15","status":"affected","version":"6.14.5","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/dwc3/core.h","drivers/usb/dwc3/ep0.c","drivers/usb/dwc3/gadget.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.113","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.56","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc6","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.113","versionStartIncluding":"6.12.26","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.56","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.10","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc6","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.293","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.237","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.181","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.136","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.89","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14.5","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: dwc3: gadget: fix IRQ storm on invalid event buffer count\n\nWhen dwc3_check_event_buf() reads a GEVNTCOUNT value exceeding the\nevent buffer length, commit 63ccd26cd1f6 (\"usb: dwc3: gadget: check\nthat event count does not exceed event buffer length\") returns IRQ_NONE\nwithout writing back GEVNTCOUNT. Since the DWC3 interrupt is\nlevel-triggered, the uncleared IRQ source keeps the line asserted,\ncausing a tight IRQ storm that accumulates 99,900 unhandled interrupts\nand triggers spurious.c:184 BUG -> kernel panic.\n\nThe resulting call stack:\n  __report_bad_irq+0xac/0xc8\n  note_interrupt+0x340/0x468\n  handle_irq_event+0xac/0xc0\n  handle_fasteoi_irq+0x120/0x228\n  gic_handle_irq+0x68/0x108\n  ...\n  kernel BUG at kernel/irq/spurious.c:184\n\nTo reproduce, write a bogus value exceeding the event buffer length\ndirectly to the GEVNTCOUNT register:\n\n  devmem <DWC3_BASE + 0xc40c> 4 0x1004\n\nWrite the bogus count back to GEVNTCOUNT to clear the IRQ source,\nconsistent with the stale event clearing pattern in\ndwc3_event_buffers_setup(), and schedule error recovery to\nreinitialize the controller."}],"providerMetadata":{"dateUpdated":"2026-10-18T15:48:02.089Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/96918ca25ff467c25675478fc79393df4ae9d74c"},{"url":"https://git.kernel.org/stable/c/ba927133b301894e7d24099afbb701887c8cd2f1"},{"url":"https://git.kernel.org/stable/c/f51cadb02b439850ab411df0a2cf4288a66d42e2"},{"url":"https://git.kernel.org/stable/c/1ff77cbefe5a653ea12874c213ea4bd0d72c1067"}],"title":"usb: dwc3: gadget: fix IRQ storm on invalid event buffer count","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98767","datePublished":"2026-10-18T15:48:02.089Z","dateReserved":"2026-09-25T10:25:14.369Z","dateUpdated":"2026-10-18T15:48:02.089Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-18 16:17:30","lastModifiedDate":"2026-10-18 16:17:30","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98767","Ordinal":"1","Title":"usb: dwc3: gadget: fix IRQ storm on invalid event buffer count","CVE":"CVE-2026-98767","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98767","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: dwc3: gadget: fix IRQ storm on invalid event buffer count\n\nWhen dwc3_check_event_buf() reads a GEVNTCOUNT value exceeding the\nevent buffer length, commit 63ccd26cd1f6 (\"usb: dwc3: gadget: check\nthat event count does not exceed event buffer length\") returns IRQ_NONE\nwithout writing back GEVNTCOUNT. Since the DWC3 interrupt is\nlevel-triggered, the uncleared IRQ source keeps the line asserted,\ncausing a tight IRQ storm that accumulates 99,900 unhandled interrupts\nand triggers spurious.c:184 BUG -> kernel panic.\n\nThe resulting call stack:\n  __report_bad_irq+0xac/0xc8\n  note_interrupt+0x340/0x468\n  handle_irq_event+0xac/0xc0\n  handle_fasteoi_irq+0x120/0x228\n  gic_handle_irq+0x68/0x108\n  ...\n  kernel BUG at kernel/irq/spurious.c:184\n\nTo reproduce, write a bogus value exceeding the event buffer length\ndirectly to the GEVNTCOUNT register:\n\n  devmem <DWC3_BASE + 0xc40c> 4 0x1004\n\nWrite the bogus count back to GEVNTCOUNT to clear the IRQ source,\nconsistent with the stale event clearing pattern in\ndwc3_event_buffers_setup(), and schedule error recovery to\nreinitialize the controller.","Type":"Description","Title":"usb: dwc3: gadget: fix IRQ storm on invalid event buffer count"}]}}}