{"api_version":"1","generated_at":"2026-09-25T14:33:32+00:00","cve":"CVE-2026-98086","urls":{"html":"https://cve.report/CVE-2026-98086","api":"https://cve.report/api/cve/CVE-2026-98086.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98086","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98086"},"summary":{"title":"ALSA: ump: do not touch legacy_rmidi before it exists","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ump: do not touch legacy_rmidi before it exists\n\nsnd_ump_parse_endpoint() sets ump->parsed on every exit, including\nerror, before the caller attaches the legacy rawmidi device.\nump_handle_ep_name_msg() then treats parsed as \"legacy_rmidi is live\"\nand calls ump_legacy_set_rawmidi_name(), which snprintf()s into\nump->legacy_rmidi->name. If a UMP packet arrives in that window\n(IRQ path from snd_ump_receive), legacy_rmidi is still NULL\n(KASAN null-ptr-deref in snprintf).\n\nGuard the legacy helpers. parsed only means endpoint info was\nparsed, not that legacy_rmidi exists.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-25 11:17:38","updated_at":"2026-09-25 11:17:38"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/a4cef20cd473e0640fefd38094d4baac0ec76ae3","name":"https://git.kernel.org/stable/c/a4cef20cd473e0640fefd38094d4baac0ec76ae3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/adeee7187694719890aaffdc14b7e89cfd736f1d","name":"https://git.kernel.org/stable/c/adeee7187694719890aaffdc14b7e89cfd736f1d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/228075f31b141395233218712242913125ace4e0","name":"https://git.kernel.org/stable/c/228075f31b141395233218712242913125ace4e0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1c8e01792adf91879322f1ad752f1814de8b7e7d","name":"https://git.kernel.org/stable/c/1c8e01792adf91879322f1ad752f1814de8b7e7d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98086","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98086","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 37e0e14128e0685267dc5c037bf655421a6ce2ea 1c8e01792adf91879322f1ad752f1814de8b7e7d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 37e0e14128e0685267dc5c037bf655421a6ce2ea 228075f31b141395233218712242913125ace4e0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 37e0e14128e0685267dc5c037bf655421a6ce2ea a4cef20cd473e0640fefd38094d4baac0ec76ae3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 37e0e14128e0685267dc5c037bf655421a6ce2ea adeee7187694719890aaffdc14b7e89cfd736f1d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.5","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.5 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.111 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.53 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.7 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc2 * 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/core/ump.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1c8e01792adf91879322f1ad752f1814de8b7e7d","status":"affected","version":"37e0e14128e0685267dc5c037bf655421a6ce2ea","versionType":"git"},{"lessThan":"228075f31b141395233218712242913125ace4e0","status":"affected","version":"37e0e14128e0685267dc5c037bf655421a6ce2ea","versionType":"git"},{"lessThan":"a4cef20cd473e0640fefd38094d4baac0ec76ae3","status":"affected","version":"37e0e14128e0685267dc5c037bf655421a6ce2ea","versionType":"git"},{"lessThan":"adeee7187694719890aaffdc14b7e89cfd736f1d","status":"affected","version":"37e0e14128e0685267dc5c037bf655421a6ce2ea","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["sound/core/ump.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.5"},{"lessThan":"6.5","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.111","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.53","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.111","versionStartIncluding":"6.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.53","versionStartIncluding":"6.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.7","versionStartIncluding":"6.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc2","versionStartIncluding":"6.5","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ump: do not touch legacy_rmidi before it exists\n\nsnd_ump_parse_endpoint() sets ump->parsed on every exit, including\nerror, before the caller attaches the legacy rawmidi device.\nump_handle_ep_name_msg() then treats parsed as \"legacy_rmidi is live\"\nand calls ump_legacy_set_rawmidi_name(), which snprintf()s into\nump->legacy_rmidi->name. If a UMP packet arrives in that window\n(IRQ path from snd_ump_receive), legacy_rmidi is still NULL\n(KASAN null-ptr-deref in snprintf).\n\nGuard the legacy helpers. parsed only means endpoint info was\nparsed, not that legacy_rmidi exists."}],"providerMetadata":{"dateUpdated":"2026-09-25T10:24:21.086Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/1c8e01792adf91879322f1ad752f1814de8b7e7d"},{"url":"https://git.kernel.org/stable/c/228075f31b141395233218712242913125ace4e0"},{"url":"https://git.kernel.org/stable/c/a4cef20cd473e0640fefd38094d4baac0ec76ae3"},{"url":"https://git.kernel.org/stable/c/adeee7187694719890aaffdc14b7e89cfd736f1d"}],"title":"ALSA: ump: do not touch legacy_rmidi before it exists","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98086","datePublished":"2026-09-25T10:24:21.086Z","dateReserved":"2026-09-25T10:19:56.075Z","dateUpdated":"2026-09-25T10:24:21.086Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-25 11:17:38","lastModifiedDate":"2026-09-25 11:17:38","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98086","Ordinal":"1","Title":"ALSA: ump: do not touch legacy_rmidi before it exists","CVE":"CVE-2026-98086","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98086","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ump: do not touch legacy_rmidi before it exists\n\nsnd_ump_parse_endpoint() sets ump->parsed on every exit, including\nerror, before the caller attaches the legacy rawmidi device.\nump_handle_ep_name_msg() then treats parsed as \"legacy_rmidi is live\"\nand calls ump_legacy_set_rawmidi_name(), which snprintf()s into\nump->legacy_rmidi->name. If a UMP packet arrives in that window\n(IRQ path from snd_ump_receive), legacy_rmidi is still NULL\n(KASAN null-ptr-deref in snprintf).\n\nGuard the legacy helpers. parsed only means endpoint info was\nparsed, not that legacy_rmidi exists.","Type":"Description","Title":"ALSA: ump: do not touch legacy_rmidi before it exists"}]}}}