{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-98767", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.369Z", "datePublished": "2026-10-18T15:48:02.089Z", "dateUpdated": "2026-10-21T12:56:41.933Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-21T12:56:41.933Z" }, "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 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." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/usb/dwc3/core.h", "drivers/usb/dwc3/ep0.c", "drivers/usb/dwc3/gadget.c" ], "versions": [ { "version": "c4d80e41cb42008dceb35e5dbf52574d93beac0d", "lessThan": "6cd82563bb270e03fe2f91324660ea14e3ce5d1a", "status": "affected", "versionType": "git" }, { "version": "52a7c9d930b95aa8b1620edaba4818040c32631f", "lessThan": "96918ca25ff467c25675478fc79393df4ae9d74c", "status": "affected", "versionType": "git" }, { "version": "63ccd26cd1f6600421795f6ca3e625076be06c9f", "lessThan": "ba927133b301894e7d24099afbb701887c8cd2f1", "status": "affected", "versionType": "git" }, { "version": "63ccd26cd1f6600421795f6ca3e625076be06c9f", "lessThan": "f51cadb02b439850ab411df0a2cf4288a66d42e2", "status": "affected", "versionType": "git" }, { "version": "63ccd26cd1f6600421795f6ca3e625076be06c9f", "lessThan": "1ff77cbefe5a653ea12874c213ea4bd0d72c1067", "status": "affected", "versionType": "git" }, { "version": "015c39f38e69a491d2abd5e98869a500a9459b3b", "status": "affected", "versionType": "git" }, { "version": "b43225948b231b3f331194010f84512bee4d9f59", "status": "affected", "versionType": "git" }, { "version": "c0079630f268843a25ed75226169cba40e0d8880", "status": "affected", "versionType": "git" }, { "version": "a44547015287a19001384fe94dbff84c92ce4ee1", "status": "affected", "versionType": "git" }, { "version": "99d655119b870ee60e4dbf310aa9a1ed8d9ede3d", "status": "affected", "versionType": "git" }, { "version": "6.6.89", "lessThan": "6.6.160", "status": "affected", "versionType": "semver" }, { "version": "6.12.26", "lessThan": "6.12.113", "status": "affected", "versionType": "semver" }, { "version": "5.4.293", "lessThan": "5.5", "status": "affected", "versionType": "semver" }, { "version": "5.10.237", "lessThan": "5.11", "status": "affected", "versionType": "semver" }, { "version": "5.15.181", "lessThan": "5.16", "status": "affected", "versionType": "semver" }, { "version": "6.1.136", "lessThan": "6.2", "status": "affected", "versionType": "semver" }, { "version": "6.14.5", "lessThan": "6.15", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/usb/dwc3/core.h", "drivers/usb/dwc3/ep0.c", "drivers/usb/dwc3/gadget.c" ], "versions": [ { "version": "6.15", "status": "affected" }, { "version": "0", "lessThan": "6.15", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.113", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.56", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2.10", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.89", "versionEndExcluding": "6.6.160" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.26", "versionEndExcluding": "6.12.113" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "6.18.56" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.2.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.3" }, { "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": "6.14.5" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/6cd82563bb270e03fe2f91324660ea14e3ce5d1a" }, { "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" } } } }