CVE-2026-68468

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68468", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.396Z", "datePublished": "2026-08-15T05:51:26.686Z", "dateUpdated": "2026-08-17T05:06:10.123Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:06:10.123Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: virt-concat: free duplicate generated name\n\nEvery MTD registration runs mtd_virt_concat_create_join(). Once a\nvirtual concat has already been registered, the function builds the same\nname again and takes the equal-name branch. That branch skips to the\nnext item without freeing the newly allocated string.\n\nFree the temporary name before continuing."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mtd/mtd_virt_concat.c"], "versions": [{"version": "43db6366fc2de02050e66389f5628d3fdc9af10a", "lessThan": "0e65079d28e5c461b6813ea5821be4dfff24ff63", "status": "affected", "versionType": "git"}, {"version": "43db6366fc2de02050e66389f5628d3fdc9af10a", "lessThan": "caa0ecbeff4f7fbf70f22bd8ca598918bffb1b78", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mtd/mtd_virt_concat.c"], "versions": [{"version": "7.1", "status": "affected"}, {"version": "0", "lessThan": "7.1", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "7.1", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0e65079d28e5c461b6813ea5821be4dfff24ff63"}, {"url": "https://git.kernel.org/stable/c/caa0ecbeff4f7fbf70f22bd8ca598918bffb1b78"}], "title": "mtd: virt-concat: free duplicate generated name", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/mtd/mtd_virt_concat.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "0e65079d28e5c461b6813ea5821be4dfff24ff63", "status": "affected", "version": "43db6366fc2de02050e66389f5628d3fdc9af10a", "versionType": "git"}, {"lessThan": "caa0ecbeff4f7fbf70f22bd8ca598918bffb1b78", "status": "affected", "version": "43db6366fc2de02050e66389f5628d3fdc9af10a", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/mtd/mtd_virt_concat.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.1"}, {"lessThan": "7.1", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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: virt-concat: free duplicate generated name\n\nEvery MTD registration runs mtd_virt_concat_create_join(). Once a\nvirtual concat has already been registered, the function builds the same\nname again and takes the equal-name branch. That branch skips to the\nnext item without freeing the newly allocated string.\n\nFree the temporary name before continuing."}], "id": "CVE-2026-68468", "lastModified": "2026-08-17T06:17:56.167", "metrics": {}, "published": "2026-08-15T06:19:57.520", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0e65079d28e5c461b6813ea5821be4dfff24ff63"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/caa0ecbeff4f7fbf70f22bd8ca598918bffb1b78"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: mtd: virt-concat: free duplicate generated name", "id": "2516667", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516667"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in the `mtd: virt-concat` component of the Linux kernel. When a virtual concatenated device is already registered, the `mtd_virt_concat_create_join()` function generates a duplicate name but fails to free the newly allocated string. This oversight leads to a memory leak, which could potentially result in resource exhaustion and a Denial of Service (DoS) condition on the system."], "name": "CVE-2026-68468", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "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"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68468\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68468\nhttps://lore.kernel.org/linux-cve-announce/2026081504-CVE-2026-68468-5a81@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[43db6366fc2de02050e66389f5628d3fdc9af10a,0e65079d28e5c461b6813ea5821be4dfff24ff63)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[43db6366fc2de02050e66389f5628d3fdc9af10a,caa0ecbeff4f7fbf70f22bd8ca598918bffb1b78)"}}], "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": "generic", "value": "7.1"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,7.1)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2-rc4,*]"}}], "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": "2026-08-15T08:00:06.326067+00:00", "updated": "2026-08-18T02:15:04.941491+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}