{"api_version":"1","generated_at":"2026-10-21T11:52:33+00:00","cve":"CVE-2026-98834","urls":{"html":"https://cve.report/CVE-2026-98834","api":"https://cve.report/api/cve/CVE-2026-98834.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98834","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98834"},"summary":{"title":"mtd: core: avoid double-free of OTP NVMEM device","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: core: avoid double-free of OTP NVMEM device\n\nIf factory OTP setup fails after the user OTP NVMEM device has been\nregistered, mtd_otp_nvmem_add() unregisters the user device but leaves\nmtd->otp_user_nvmem set. On an error, the caller unregisters it again.\nFor -EOPNOTSUPP, registration continues and normal teardown unregisters\nit again.\n\nClear mtd->otp_user_nvmem after unregistering it.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-18 16:17:37","updated_at":"2026-10-19 10:19:47"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/26300879cd8e4612dce66bb8f6ff7cd35fcf3e59","name":"https://git.kernel.org/stable/c/26300879cd8e4612dce66bb8f6ff7cd35fcf3e59","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cecf007418b93a2cbc94269e07fe2fb28f54d8fb","name":"https://git.kernel.org/stable/c/cecf007418b93a2cbc94269e07fe2fb28f54d8fb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98834","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98834","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e0489f6e221f5ddee6cb3bd51b992b790c5fa4b9 cecf007418b93a2cbc94269e07fe2fb28f54d8fb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e0489f6e221f5ddee6cb3bd51b992b790c5fa4b9 26300879cd8e4612dce66bb8f6ff7cd35fcf3e59 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6d1af517817a760d7af3dee0fc4603645485495c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f1b4affca1e13706ca2eb075bf6775421236d7d1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 949476b8601bde5459048eebdf457c9db20addd8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected dd6c85f98ff33b009b819090268cbf679dc208b9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.15.111 5.16 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.1.28 6.2 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.2.15 6.3 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.3.2 6.4 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.4","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.4 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 * 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/mtd/mtdcore.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"cecf007418b93a2cbc94269e07fe2fb28f54d8fb","status":"affected","version":"e0489f6e221f5ddee6cb3bd51b992b790c5fa4b9","versionType":"git"},{"lessThan":"26300879cd8e4612dce66bb8f6ff7cd35fcf3e59","status":"affected","version":"e0489f6e221f5ddee6cb3bd51b992b790c5fa4b9","versionType":"git"},{"status":"affected","version":"6d1af517817a760d7af3dee0fc4603645485495c","versionType":"git"},{"status":"affected","version":"f1b4affca1e13706ca2eb075bf6775421236d7d1","versionType":"git"},{"status":"affected","version":"949476b8601bde5459048eebdf457c9db20addd8","versionType":"git"},{"status":"affected","version":"dd6c85f98ff33b009b819090268cbf679dc208b9","versionType":"git"},{"lessThan":"5.16","status":"affected","version":"5.15.111","versionType":"semver"},{"lessThan":"6.2","status":"affected","version":"6.1.28","versionType":"semver"},{"lessThan":"6.3","status":"affected","version":"6.2.15","versionType":"semver"},{"lessThan":"6.4","status":"affected","version":"6.3.2","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/mtd/mtdcore.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.4"},{"lessThan":"6.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.10","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":"7.2.10","versionStartIncluding":"6.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"6.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.111","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.28","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3.2","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: core: avoid double-free of OTP NVMEM device\n\nIf factory OTP setup fails after the user OTP NVMEM device has been\nregistered, mtd_otp_nvmem_add() unregisters the user device but leaves\nmtd->otp_user_nvmem set. On an error, the caller unregisters it again.\nFor -EOPNOTSUPP, registration continues and normal teardown unregisters\nit again.\n\nClear mtd->otp_user_nvmem after unregistering it."}],"providerMetadata":{"dateUpdated":"2026-10-19T09:26:26.676Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/cecf007418b93a2cbc94269e07fe2fb28f54d8fb"},{"url":"https://git.kernel.org/stable/c/26300879cd8e4612dce66bb8f6ff7cd35fcf3e59"}],"title":"mtd: core: avoid double-free of OTP NVMEM device","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98834","datePublished":"2026-10-18T15:49:46.003Z","dateReserved":"2026-09-25T10:25:14.372Z","dateUpdated":"2026-10-19T09:26:26.676Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-18 16:17:37","lastModifiedDate":"2026-10-19 10:19:47","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98834","Ordinal":"1","Title":"mtd: core: avoid double-free of OTP NVMEM device","CVE":"CVE-2026-98834","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98834","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: core: avoid double-free of OTP NVMEM device\n\nIf factory OTP setup fails after the user OTP NVMEM device has been\nregistered, mtd_otp_nvmem_add() unregisters the user device but leaves\nmtd->otp_user_nvmem set. On an error, the caller unregisters it again.\nFor -EOPNOTSUPP, registration continues and normal teardown unregisters\nit again.\n\nClear mtd->otp_user_nvmem after unregistering it.","Type":"Description","Title":"mtd: core: avoid double-free of OTP NVMEM device"}]}}}