147 lines
7.7 KiB
JSON
147 lines
7.7 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-2026-98317",
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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": "2026-09-25T10:25:14.339Z",
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"datePublished": "2026-10-06T08:46:12.351Z",
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"dateUpdated": "2026-10-19T09:17:27.952Z"
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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": "2026-10-19T09:17:27.952Z"
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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\nneighbour: Enforce min/max to NDTPA_INTERVAL_PROBE_TIME_MS.\n\nNDTPA_INTERVAL_PROBE_TIME_MS sets .type and .min but misses\n.validation_type, so no validation is applied:\n\n # ynl --family rt-neigh --do setneightbl \\\n --json '{\"name\": \"arp_cache\", \"parms\": {\"interval-probe-time-ms\": 0}}'\n\n # ynl --family rt-neigh --dump getneightbl --output-json | \\\n jq '.[] | select(.name == \"arp_cache\" and has(\"config\"))\n | .parms[\"interval-probe-time-ms\"]'\n 0\n\nMoreover, nla_get_msecs() uses msecs_to_jiffies(), and u64 is\nsilently cast to u32, so a larger value can bypass the min check:\n\n e.g. 4294967296 == 0x100000000\n\n # ynl --family rt-neigh --do setneightbl \\\n --json '{\"name\": \"arp_cache\", \"parms\": {\"interval-probe-time-ms\": 4294967296}}'\n\n # ynl --family rt-neigh --dump getneightbl --output-json | \\\n jq '.[] | select(.name == \"arp_cache\" and has(\"config\"))\n | .parms[\"interval-probe-time-ms\"]'\n 0\n\nmsecs_to_jiffies() returns MAX_JIFFY_OFFSET if the value is\nlarger than INT_MAX. Also, INT_MAX ms overflows int NEIGH_VAR()\nwhen HZ > 1000 (Alpha, MIPS), and passing a negative integer to\nqueue_delayed_work(unsigned long delay) causes sign extension,\nwhich wraps around the expiry time to the past, resulting in it\nbeing handled as 0 delay in the timer wheel.\n\nLet's use NLA_POLICY_FULL_RANGE() and limit the max to 1 day.\n\nThe same max check is applied to sysctl as well.\n\nNote that this controls the probe interval for NTF_MANAGED\nentries, so the max of 1 day is unlikely to break any\ndeployments."
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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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"Documentation/netlink/specs/rt-neigh.yaml",
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"Documentation/networking/ip-sysctl.rst",
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"net/core/neighbour.c"
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],
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"versions": [
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{
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"version": "211da42eaa45db7b0edfde187dd88a85fbd466b5",
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"lessThan": "982c7f66c04134b77126edbfd8a63ecd6928cfd9",
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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": "211da42eaa45db7b0edfde187dd88a85fbd466b5",
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"lessThan": "8550b50e49b01b572e653e572f24ddd73949aa74",
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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": "211da42eaa45db7b0edfde187dd88a85fbd466b5",
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"lessThan": "6d79b223ec44ada58ad37db42f539b60985a7722",
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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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"Documentation/netlink/specs/rt-neigh.yaml",
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"Documentation/networking/ip-sysctl.rst",
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"net/core/neighbour.c"
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],
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"versions": [
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{
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"version": "6.0",
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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": "6.0",
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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": "6.18.54",
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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": "7.2.8",
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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": "6.0",
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"versionEndExcluding": "6.18.54"
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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": "6.0",
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"versionEndExcluding": "7.2.8"
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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": "6.0",
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"versionEndExcluding": "7.3"
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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/982c7f66c04134b77126edbfd8a63ecd6928cfd9"
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},
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{
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"url": "https://git.kernel.org/stable/c/8550b50e49b01b572e653e572f24ddd73949aa74"
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},
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{
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"url": "https://git.kernel.org/stable/c/6d79b223ec44ada58ad37db42f539b60985a7722"
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}
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],
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"title": "neighbour: Enforce min/max to NDTPA_INTERVAL_PROBE_TIME_MS.",
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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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} |