{"api_version":"1","generated_at":"2026-10-26T08:56:11+00:00","cve":"CVE-2026-98428","urls":{"html":"https://cve.report/CVE-2026-98428","api":"https://cve.report/api/cve/CVE-2026-98428.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98428","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98428"},"summary":{"title":"ALSA: usb: 6fire: Avoid embedded URBs","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb: 6fire: Avoid embedded URBs\n\nThe USB 6fire driver uses URBs embedded in different structs for PCM,\nMIDI and communication, and this is basically a buggy implementation\nnowadays; since a URB is managed with a refcount, this may lead to a\nUAF when the URB is released asynchronously.\n\nFor addressing the problem, this patch converts those embedded URBs to\nones that are properly allocated via usb_alloc_urb().  The\npcm_urb.packets[] is gone, as it's allocated by usb_alloc_urb(), hence\nit's found in urb.iso_frame_desc[] instead.\n\nThe conversions are rather straightforward; each embedded struct urb\nis changed to a pointer, and its callers are updated accordingly.\nThe resource for those structs are released in the common destructor\nfunctions (usb6fire_comm_free(), etc), which are called at both the\ninit error path and the disconnect.\n\nNo functional changes, only compile-tested.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-14 14:17:54","updated_at":"2026-10-26 07:17:10"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/9fe49dbc023e82dfaee7b245997d820d01742a9a","name":"https://git.kernel.org/stable/c/9fe49dbc023e82dfaee7b245997d820d01742a9a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d181434549b3da668110a25d743848cce9897f4e","name":"https://git.kernel.org/stable/c/d181434549b3da668110a25d743848cce9897f4e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/999f433c09e4668412bd68ca207ae2b4af863862","name":"https://git.kernel.org/stable/c/999f433c09e4668412bd68ca207ae2b4af863862","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3ef9093d83ffecb8e5f6c9d5769a52d39df74f7a","name":"https://git.kernel.org/stable/c/3ef9093d83ffecb8e5f6c9d5769a52d39df74f7a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/52a43c2d57e774489ac3fbbac06ff02f19bd9a52","name":"https://git.kernel.org/stable/c/52a43c2d57e774489ac3fbbac06ff02f19bd9a52","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8b8559aeaba2e51cfee1779b2383b085991f7d81","name":"https://git.kernel.org/stable/c/8b8559aeaba2e51cfee1779b2383b085991f7d81","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98428","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98428","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 3ef9093d83ffecb8e5f6c9d5769a52d39df74f7a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 8b8559aeaba2e51cfee1779b2383b085991f7d81 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 52a43c2d57e774489ac3fbbac06ff02f19bd9a52 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 999f433c09e4668412bd68ca207ae2b4af863862 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 d181434549b3da668110a25d743848cce9897f4e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 9fe49dbc023e82dfaee7b245997d820d01742a9a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2.6.39","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 2.6.39 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.189 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.158 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.112 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.54 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.8 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * 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":["sound/usb/6fire/comm.c","sound/usb/6fire/comm.h","sound/usb/6fire/midi.c","sound/usb/6fire/midi.h","sound/usb/6fire/pcm.c","sound/usb/6fire/pcm.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3ef9093d83ffecb8e5f6c9d5769a52d39df74f7a","status":"affected","version":"c6d43ba816d1cf1d125bfbfc938f2a28a87facf9","versionType":"git"},{"lessThan":"8b8559aeaba2e51cfee1779b2383b085991f7d81","status":"affected","version":"c6d43ba816d1cf1d125bfbfc938f2a28a87facf9","versionType":"git"},{"lessThan":"52a43c2d57e774489ac3fbbac06ff02f19bd9a52","status":"affected","version":"c6d43ba816d1cf1d125bfbfc938f2a28a87facf9","versionType":"git"},{"lessThan":"999f433c09e4668412bd68ca207ae2b4af863862","status":"affected","version":"c6d43ba816d1cf1d125bfbfc938f2a28a87facf9","versionType":"git"},{"lessThan":"d181434549b3da668110a25d743848cce9897f4e","status":"affected","version":"c6d43ba816d1cf1d125bfbfc938f2a28a87facf9","versionType":"git"},{"lessThan":"9fe49dbc023e82dfaee7b245997d820d01742a9a","status":"affected","version":"c6d43ba816d1cf1d125bfbfc938f2a28a87facf9","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["sound/usb/6fire/comm.c","sound/usb/6fire/comm.h","sound/usb/6fire/midi.c","sound/usb/6fire/midi.h","sound/usb/6fire/pcm.c","sound/usb/6fire/pcm.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.39"},{"lessThan":"2.6.39","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.189","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.158","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.112","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.54","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.189","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.158","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.112","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.54","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.8","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"2.6.39","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb: 6fire: Avoid embedded URBs\n\nThe USB 6fire driver uses URBs embedded in different structs for PCM,\nMIDI and communication, and this is basically a buggy implementation\nnowadays; since a URB is managed with a refcount, this may lead to a\nUAF when the URB is released asynchronously.\n\nFor addressing the problem, this patch converts those embedded URBs to\nones that are properly allocated via usb_alloc_urb().  The\npcm_urb.packets[] is gone, as it's allocated by usb_alloc_urb(), hence\nit's found in urb.iso_frame_desc[] instead.\n\nThe conversions are rather straightforward; each embedded struct urb\nis changed to a pointer, and its callers are updated accordingly.\nThe resource for those structs are released in the common destructor\nfunctions (usb6fire_comm_free(), etc), which are called at both the\ninit error path and the disconnect.\n\nNo functional changes, only compile-tested."}],"providerMetadata":{"dateUpdated":"2026-10-26T06:55:43.958Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/3ef9093d83ffecb8e5f6c9d5769a52d39df74f7a"},{"url":"https://git.kernel.org/stable/c/8b8559aeaba2e51cfee1779b2383b085991f7d81"},{"url":"https://git.kernel.org/stable/c/52a43c2d57e774489ac3fbbac06ff02f19bd9a52"},{"url":"https://git.kernel.org/stable/c/999f433c09e4668412bd68ca207ae2b4af863862"},{"url":"https://git.kernel.org/stable/c/d181434549b3da668110a25d743848cce9897f4e"},{"url":"https://git.kernel.org/stable/c/9fe49dbc023e82dfaee7b245997d820d01742a9a"}],"title":"ALSA: usb: 6fire: Avoid embedded URBs","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98428","datePublished":"2026-10-14T13:27:54.364Z","dateReserved":"2026-09-25T10:25:14.348Z","dateUpdated":"2026-10-26T06:55:43.958Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-14 14:17:54","lastModifiedDate":"2026-10-26 07:17:10","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98428","Ordinal":"1","Title":"ALSA: usb: 6fire: Avoid embedded URBs","CVE":"CVE-2026-98428","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98428","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb: 6fire: Avoid embedded URBs\n\nThe USB 6fire driver uses URBs embedded in different structs for PCM,\nMIDI and communication, and this is basically a buggy implementation\nnowadays; since a URB is managed with a refcount, this may lead to a\nUAF when the URB is released asynchronously.\n\nFor addressing the problem, this patch converts those embedded URBs to\nones that are properly allocated via usb_alloc_urb().  The\npcm_urb.packets[] is gone, as it's allocated by usb_alloc_urb(), hence\nit's found in urb.iso_frame_desc[] instead.\n\nThe conversions are rather straightforward; each embedded struct urb\nis changed to a pointer, and its callers are updated accordingly.\nThe resource for those structs are released in the common destructor\nfunctions (usb6fire_comm_free(), etc), which are called at both the\ninit error path and the disconnect.\n\nNo functional changes, only compile-tested.","Type":"Description","Title":"ALSA: usb: 6fire: Avoid embedded URBs"}]}}}