CVE-2026-98834

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98834", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.372Z", "datePublished": "2026-10-18T15:49:46.003Z", "dateUpdated": "2026-10-19T09:26:26.676Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:26:26.676Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mtd/mtdcore.c"], "versions": [{"version": "e0489f6e221f5ddee6cb3bd51b992b790c5fa4b9", "lessThan": "cecf007418b93a2cbc94269e07fe2fb28f54d8fb", "status": "affected", "versionType": "git"}, {"version": "e0489f6e221f5ddee6cb3bd51b992b790c5fa4b9", "lessThan": "26300879cd8e4612dce66bb8f6ff7cd35fcf3e59", "status": "affected", "versionType": "git"}, {"version": "6d1af517817a760d7af3dee0fc4603645485495c", "status": "affected", "versionType": "git"}, {"version": "f1b4affca1e13706ca2eb075bf6775421236d7d1", "status": "affected", "versionType": "git"}, {"version": "949476b8601bde5459048eebdf457c9db20addd8", "status": "affected", "versionType": "git"}, {"version": "dd6c85f98ff33b009b819090268cbf679dc208b9", "status": "affected", "versionType": "git"}, {"version": "5.15.111", "lessThan": "5.16", "status": "affected", "versionType": "semver"}, {"version": "6.1.28", "lessThan": "6.2", "status": "affected", "versionType": "semver"}, {"version": "6.2.15", "lessThan": "6.3", "status": "affected", "versionType": "semver"}, {"version": "6.3.2", "lessThan": "6.4", "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/mtd/mtdcore.c"], "versions": [{"version": "6.4", "status": "affected"}, {"version": "0", "lessThan": "6.4", "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": "6.4", "versionEndExcluding": "7.2.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "7.3"}, {"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"}]}]}], "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"}}}}

{}

{"affected": [{"affectedData": [{"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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-98834", "lastModified": "2026-10-19T10:19:47.420", "metrics": {}, "published": "2026-10-18T16:17:37.633", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/26300879cd8e4612dce66bb8f6ff7cd35fcf3e59"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cecf007418b93a2cbc94269e07fe2fb28f54d8fb"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: mtd: core: avoid double-free of OTP NVMEM device", "id": "2555247", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2555247"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-1341", "details": ["A flaw was found in the Linux kernel's Memory Technology Device (MTD) subsystem. An attacker capable of triggering device registration failures can cause a Denial of Service (DoS) via a kernel crash. During the setup of One-Time Programmable (OTP) non-volatile memory devices, an initialization failure unregisters the device without clearing its internal reference pointer. Subsequent error handling or cleanup routines attempt to release the device a second time, resulting in a double-free condition and system instability."], "name": "CVE-2026-98834", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98834\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98834\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98834.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e0489f6e221f5ddee6cb3bd51b992b790c5fa4b9,cecf007418b93a2cbc94269e07fe2fb28f54d8fb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e0489f6e221f5ddee6cb3bd51b992b790c5fa4b9,26300879cd8e4612dce66bb8f6ff7cd35fcf3e59)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "6d1af517817a760d7af3dee0fc4603645485495c"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "f1b4affca1e13706ca2eb075bf6775421236d7d1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "949476b8601bde5459048eebdf457c9db20addd8"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "dd6c85f98ff33b009b819090268cbf679dc208b9"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.15.111,5.16)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.1.28,6.2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.2.15,6.3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.3.2,6.4)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.4"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.4)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.10,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-18T22:00:20.104212+00:00", "updated": "2026-10-24T04:30:08.032224+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}