{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72414", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.927Z", "datePublished": "2026-08-15T05:56:35.548Z", "dateUpdated": "2026-08-17T05:14:12.457Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:14:12.457Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: sja1105: round up PTP perout pin duration\n\npin_duration is converted from the user-provided period to SJA1105\nclock ticks and is later passed as the cycle_time argument to\nfuture_base_time().\n\nVery small period values may become zero after the conversion,\nwhich can lead to a division by zero in future_base_time().\n\nRound zero pin_duration up to 1 tick so that the smallest 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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/dsa/sja1105/sja1105_ptp.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "aaf446099ca497c8d9a8e511fedf5d0e547bf8ec", "status": "affected", "version": "747e5eb31d59d047972a0dab03e5430fe4264332", "versionType": "git"}, {"lessThan": "201dcbbfb27f3db85c8cf125a75f3164a83ceb32", "status": "affected", "version": "747e5eb31d59d047972a0dab03e5430fe4264332", "versionType": "git"}, {"lessThan": "9952291db7125b8a62bf19800b93dcac81fc70c0", "status": "affected", "version": "747e5eb31d59d047972a0dab03e5430fe4264332", "versionType": "git"}, {"lessThan": "fc62bfd30d30af07356f0f7121c826e1e753582f", "status": "affected", "version": "747e5eb31d59d047972a0dab03e5430fe4264332", "versionType": "git"}, {"lessThan": "28d13a89a211cc07caeef32069eaa847131b7351", "status": "affected", "version": "747e5eb31d59d047972a0dab03e5430fe4264332", "versionType": "git"}, {"lessThan": "410629528067029096dba7ad7bc49e4a5e92708d", "status": "affected", "version": "747e5eb31d59d047972a0dab03e5430fe4264332", "versionType": "git"}, {"lessThan": "09efce96c909dff1a9317ec3714b7ddb4751b7af", "status": "affected", "version": "747e5eb31d59d047972a0dab03e5430fe4264332", "versionType": "git"}, {"lessThan": "aee5836273b07b439fb245fb43930664d8b78518", "status": "affected", "version": "747e5eb31d59d047972a0dab03e5430fe4264332", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/dsa/sja1105/sja1105_ptp.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.7"}, {"lessThan": "5.7", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.261", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.212", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "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\nnet: dsa: sja1105: round up PTP perout pin duration\n\npin_duration is converted from the user-provided period to SJA1105\nclock ticks and is later passed as the cycle_time argument to\nfuture_base_time().\n\nVery small period values may become zero after the conversion,\nwhich can lead to a division by zero in future_base_time().\n\nRound zero pin_duration up to 1 tick so that the smallest unsupported\nperiods use the minimum non-zero hardware duration instead of passing\nzero to future_base_time()."}], "id": "CVE-2026-72414", "lastModified": "2026-08-17T06:19:08.267", "metrics": {}, "published": "2026-08-15T06:22:15.003", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/09efce96c909dff1a9317ec3714b7ddb4751b7af"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/201dcbbfb27f3db85c8cf125a75f3164a83ceb32"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/28d13a89a211cc07caeef32069eaa847131b7351"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/410629528067029096dba7ad7bc49e4a5e92708d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9952291db7125b8a62bf19800b93dcac81fc70c0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/aaf446099ca497c8d9a8e511fedf5d0e547bf8ec"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/aee5836273b07b439fb245fb43930664d8b78518"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fc62bfd30d30af07356f0f7121c826e1e753582f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: net: dsa: sja1105: round up PTP perout pin duration", "id": "2516553", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516553"}, "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-369", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: dsa: sja1105: round up PTP perout pin duration\npin_duration is converted from the user-provided period to SJA1105\nclock ticks and is later passed as the cycle_time argument to\nfuture_base_time().\nVery small period values may become zero after the conversion,\nwhich can lead to a division by zero in future_base_time().\nRound zero pin_duration up to 1 tick so that the smallest unsupported\nperiods use the minimum non-zero hardware duration instead of passing\nzero to future_base_time().", "A flaw was found in the Linux kernel's `net: dsa: sja1105` component. This vulnerability occurs when processing specific timing parameters, where very small user-provided values are converted to zero. This incorrect conversion can lead to a division-by-zero error in the `future_base_time()` function, which may result in a system crash and a Denial of Service (DoS)."], "name": "CVE-2026-72414", "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-2026-72414\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72414\nhttps://lore.kernel.org/linux-cve-announce/2026081524-CVE-2026-72414-4bc2@gregkh/T"], "threat_severity": "Moderate"}

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