248 lines
12 KiB
JSON
248 lines
12 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-98009",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-09-25T10:19:56.068Z",
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"datePublished": "2026-09-25T10:23:34.144Z",
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"dateUpdated": "2026-10-19T09:12:14.751Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-10-19T09:12:14.751Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: ets: clamp quantum in parse and fallback paths\n\nets_qdisc_change() falls back to psched_mtu() with no floor for bands\nwithout an explicit quantum. With a crafted size table qdisc_pkt_len\nreaches ~2 GiB, so a zero psched_mtu on a headerless device makes the\ndeficit-refill loop spin under the qdisc lock.\n\nMove the floor into ets_quantum_parse() so explicitly configured quanta\nare also clamped to [256, 1<<20], not just the fallback path.\n\nConditions to recreate the bug:\n CONFIG_NET_SCH_ETS=y. Requires CAP_NET_ADMIN (namespace-local via\n unshare -Urn suffices).\n\n tc qdisc add dev dummy0 root ets bands 3 strict 2 quanta 1 1"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/sched/sch_ets.c"
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],
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"versions": [
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{
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"version": "dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33",
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"lessThan": "440b66cc7b56ea38e9b878ae88da91992efaa4c4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33",
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"lessThan": "4ef8664eafafc8db68a1d52601f17dc008a223b7",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33",
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"lessThan": "8b8d782c3b96376217087767dcf662cd3d25f226",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33",
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"lessThan": "226d2702e74a570f5bfae6115b4706da4b94e5cf",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33",
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"lessThan": "99ae477b892e203a37985ebc56f0063e072f7f4b",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33",
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"lessThan": "8f80b113dea0bed3c1a31a4224b72775cd9ec52d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33",
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"lessThan": "de22c30ec5598aca8797f02082d2ee1358dfa3ff",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33",
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"lessThan": "1c38487f46b243bfeefec0c0c86023a3904f2214",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/sched/sch_ets.c"
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],
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"versions": [
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{
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"version": "5.6",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.6",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.271",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.222",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.189",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.158",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.111",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.53",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2.7",
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"lessThanOrEqual": "7.2.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.3",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.6",
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"versionEndExcluding": "5.10.271"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.6",
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"versionEndExcluding": "5.15.222"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.6",
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"versionEndExcluding": "6.6.158"
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"versionStartIncluding": "5.6",
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.6",
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"versionEndExcluding": "7.2.7"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/440b66cc7b56ea38e9b878ae88da91992efaa4c4"
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},
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{
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"url": "https://git.kernel.org/stable/c/4ef8664eafafc8db68a1d52601f17dc008a223b7"
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},
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{
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"url": "https://git.kernel.org/stable/c/8b8d782c3b96376217087767dcf662cd3d25f226"
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},
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{
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"url": "https://git.kernel.org/stable/c/226d2702e74a570f5bfae6115b4706da4b94e5cf"
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},
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{
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"url": "https://git.kernel.org/stable/c/99ae477b892e203a37985ebc56f0063e072f7f4b"
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},
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{
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"url": "https://git.kernel.org/stable/c/8f80b113dea0bed3c1a31a4224b72775cd9ec52d"
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},
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{
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"url": "https://git.kernel.org/stable/c/de22c30ec5598aca8797f02082d2ee1358dfa3ff"
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},
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{
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"url": "https://git.kernel.org/stable/c/1c38487f46b243bfeefec0c0c86023a3904f2214"
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}
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],
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"title": "net/sched: ets: clamp quantum in parse and fallback paths",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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} |