{"id":"CVE-2026-72414","state":"PUBLISHED","title":"net: dsa: sja1105: round up PTP perout pin duration","description":"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().","publishedAt":"2026-08-15T05:56:35.548Z","updatedAt":"2026-08-17T05:14:12.457Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"aaf446099ca497c8d9a8e511fedf5d0e547bf8ec","versionType":"git"},{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"201dcbbfb27f3db85c8cf125a75f3164a83ceb32","versionType":"git"},{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"9952291db7125b8a62bf19800b93dcac81fc70c0","versionType":"git"},{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"fc62bfd30d30af07356f0f7121c826e1e753582f","versionType":"git"},{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"28d13a89a211cc07caeef32069eaa847131b7351","versionType":"git"},{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"410629528067029096dba7ad7bc49e4a5e92708d","versionType":"git"},{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"09efce96c909dff1a9317ec3714b7ddb4751b7af","versionType":"git"},{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"aee5836273b07b439fb245fb43930664d8b78518","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/dsa/sja1105/sja1105_ptp.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.7","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/dsa/sja1105/sja1105_ptp.c"]}],"references":["https://git.kernel.org/stable/c/aaf446099ca497c8d9a8e511fedf5d0e547bf8ec","https://git.kernel.org/stable/c/201dcbbfb27f3db85c8cf125a75f3164a83ceb32","https://git.kernel.org/stable/c/9952291db7125b8a62bf19800b93dcac81fc70c0","https://git.kernel.org/stable/c/fc62bfd30d30af07356f0f7121c826e1e753582f","https://git.kernel.org/stable/c/28d13a89a211cc07caeef32069eaa847131b7351","https://git.kernel.org/stable/c/410629528067029096dba7ad7bc49e4a5e92708d","https://git.kernel.org/stable/c/09efce96c909dff1a9317ec3714b7ddb4751b7af","https://git.kernel.org/stable/c/aee5836273b07b439fb245fb43930664d8b78518"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72414.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72414","state":"PUBLISHED","datePublished":"2026-08-15T05:56:35.548Z","dateUpdated":"2026-08-17T05:14:12.457Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-09T03:40:39.927Z"},"containers":{"cna":{"title":"net: dsa: sja1105: round up PTP perout pin duration","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()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"aaf446099ca497c8d9a8e511fedf5d0e547bf8ec","versionType":"git"},{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"201dcbbfb27f3db85c8cf125a75f3164a83ceb32","versionType":"git"},{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"9952291db7125b8a62bf19800b93dcac81fc70c0","versionType":"git"},{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"fc62bfd30d30af07356f0f7121c826e1e753582f","versionType":"git"},{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"28d13a89a211cc07caeef32069eaa847131b7351","versionType":"git"},{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"410629528067029096dba7ad7bc49e4a5e92708d","versionType":"git"},{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"09efce96c909dff1a9317ec3714b7ddb4751b7af","versionType":"git"},{"version":"747e5eb31d59d047972a0dab03e5430fe4264332","status":"affected","lessThan":"aee5836273b07b439fb245fb43930664d8b78518","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/dsa/sja1105/sja1105_ptp.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.7","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/dsa/sja1105/sja1105_ptp.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/aaf446099ca497c8d9a8e511fedf5d0e547bf8ec"},{"url":"https://git.kernel.org/stable/c/201dcbbfb27f3db85c8cf125a75f3164a83ceb32"},{"url":"https://git.kernel.org/stable/c/9952291db7125b8a62bf19800b93dcac81fc70c0"},{"url":"https://git.kernel.org/stable/c/fc62bfd30d30af07356f0f7121c826e1e753582f"},{"url":"https://git.kernel.org/stable/c/28d13a89a211cc07caeef32069eaa847131b7351"},{"url":"https://git.kernel.org/stable/c/410629528067029096dba7ad7bc49e4a5e92708d"},{"url":"https://git.kernel.org/stable/c/09efce96c909dff1a9317ec3714b7ddb4751b7af"},{"url":"https://git.kernel.org/stable/c/aee5836273b07b439fb245fb43930664d8b78518"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:14:12.457Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}