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-2026-98010",
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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": "2026-09-25T10:23:34.738Z",
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"dateUpdated": "2026-10-19T09:12:15.743Z"
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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": "2026-10-19T09:12:15.743Z"
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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: drr: clamp quantum in change class\n\ndrr_change_class() rejects explicit quantum==0 but falls back to\npsched_mtu() with no floor. With a crafted size table qdisc_pkt_len\nreaches ~2 GiB, so quantum=1 (or a zero psched_mtu on a headerless\ndevice) makes the deficit-refill loop spin under the qdisc lock.\n\nAdd clamp_t(u32, quantum, 256, 1<<20) after the zero reject and on the\nfallback path. The explicit-zero reject is preserved.\n\nConditions to recreate the bug:\n CONFIG_NET_SCH_DRR=y. Requires CAP_NET_ADMIN (namespace-local via\n unshare -Urn suffices).\n\n tc qdisc add dev dummy0 root drr\n tc class add dev dummy0 parent 1: classid 1:1 drr quantum 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_drr.c"
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],
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"versions": [
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{
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"version": "13d2a1d2b032de08d7dcab6a1edcd47802681f96",
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"lessThan": "e2297bbf9cf6ece86f1d1f8c683517a994990f9e",
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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": "13d2a1d2b032de08d7dcab6a1edcd47802681f96",
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"lessThan": "560794ee6e040b6e1c4ac2b3c8909f341a4596ee",
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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": "13d2a1d2b032de08d7dcab6a1edcd47802681f96",
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"lessThan": "23fea7e6736b2e1c6f6f2f05cccf33d36834da73",
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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": "13d2a1d2b032de08d7dcab6a1edcd47802681f96",
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"lessThan": "b464affe9f9dfe41ac48930c376e3fb8596651b0",
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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": "13d2a1d2b032de08d7dcab6a1edcd47802681f96",
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"lessThan": "dc8b374214ef5bba4882bbd95b361e42555cfc0d",
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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": "13d2a1d2b032de08d7dcab6a1edcd47802681f96",
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"lessThan": "d43cded350fe1218493ad3d37a276aff14108ae6",
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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": "13d2a1d2b032de08d7dcab6a1edcd47802681f96",
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"lessThan": "8f756ae1c87414ce9cc21b30e6e4c036d6e9e80b",
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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": "13d2a1d2b032de08d7dcab6a1edcd47802681f96",
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"lessThan": "8382abec0f1568d0a5590d75a3df92f23fcf5196",
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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_drr.c"
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],
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"versions": [
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{
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"version": "2.6.29",
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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": "2.6.29",
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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": "2.6.29",
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"versionEndExcluding": "5.10.271"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.29",
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"versionEndExcluding": "5.15.222"
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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.29",
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"versionEndExcluding": "6.1.189"
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"versionEndExcluding": "6.6.158"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.29",
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"versionEndExcluding": "6.12.111"
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"versionEndExcluding": "6.18.53"
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},
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{
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"versionStartIncluding": "2.6.29",
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"versionEndExcluding": "7.2.7"
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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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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/e2297bbf9cf6ece86f1d1f8c683517a994990f9e"
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},
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{
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"url": "https://git.kernel.org/stable/c/560794ee6e040b6e1c4ac2b3c8909f341a4596ee"
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},
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{
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"url": "https://git.kernel.org/stable/c/23fea7e6736b2e1c6f6f2f05cccf33d36834da73"
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},
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{
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"url": "https://git.kernel.org/stable/c/b464affe9f9dfe41ac48930c376e3fb8596651b0"
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},
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{
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"url": "https://git.kernel.org/stable/c/dc8b374214ef5bba4882bbd95b361e42555cfc0d"
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},
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{
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"url": "https://git.kernel.org/stable/c/d43cded350fe1218493ad3d37a276aff14108ae6"
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},
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{
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"url": "https://git.kernel.org/stable/c/8f756ae1c87414ce9cc21b30e6e4c036d6e9e80b"
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},
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{
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"url": "https://git.kernel.org/stable/c/8382abec0f1568d0a5590d75a3df92f23fcf5196"
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}
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],
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"title": "net/sched: drr: clamp quantum in change class",
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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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}
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} |