286 lines
14 KiB
JSON
286 lines
14 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-2026-72447",
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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": "2026-08-09T03:40:39.931Z",
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"datePublished": "2026-08-15T05:56:57.089Z",
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"dateUpdated": "2026-11-06T17:05:42.860Z"
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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": "2026-08-17T05:14:49.557Z"
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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\nsctp: hold socket lock when dumping endpoints in sctp_diag\n\nSCTP_DIAG endpoint dumping was traversing endpoint address lists without\nholding lock_sock(), while those lists could change concurrently via\nsocket operations (e.g., bindx changes). This creates a race where\nnla_reserve() counts addresses under RCU protection, but the subsequent\ncopy may see fewer entries, potentially leaking uninitialized memory to\nuserspace.\n\nFix this by:\n\n- Taking a reference on each endpoint during hash traversal\n- Moving socket operations (lock_sock()) outside read_lock_bh()\n- Serializing address list access during dump\n- Reworking sctp_for_each_endpoint() to support restart-based traversal\n with (net, pos) tracking\n\nAlso:\n\n- Add WARN_ON_ONCE() for inconsistent address counts\n- Fix idiag_states filtering for LISTEN vs association cases\n- Skip dumping endpoints being freed (ep->base.dead)\n- Move dump position tracking into iterator, removing cb->args[4] and\n its comment for sctp_ep_dump().,\n- Update the comment for cb->args[4] and remove the comment for unused\n cb->args[5] for sctp_sock_dump().\n\nNote: traversal is restart-based and may re-scan buckets multiple times,\nbut this is acceptable due to small bucket sizes and required to support\nsleeping-safe callbacks.\n\nThis issue was reported by Nico Yip (@_cyeaa_) working with TrendAI Zero\nDay Initiative."
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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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"include/net/sctp/sctp.h",
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"net/sctp/diag.c",
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"net/sctp/socket.c"
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],
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"versions": [
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{
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"version": "8f840e47f190cbe61a96945c13e9551048d42cef",
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"lessThan": "f98c294a9369b6fe89e652c06357ee594be4dfa2",
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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": "8f840e47f190cbe61a96945c13e9551048d42cef",
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"lessThan": "8b38e3dcfde3077dbc03eb8ef88e03cc19f70b8a",
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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": "8f840e47f190cbe61a96945c13e9551048d42cef",
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"lessThan": "ec3c2d59a192e17e1014ba71afc368ba162ecac3",
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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": "8f840e47f190cbe61a96945c13e9551048d42cef",
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"lessThan": "722576aba0a6d9423714550b1c03239b0f0def77",
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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": "8f840e47f190cbe61a96945c13e9551048d42cef",
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"lessThan": "abe7f8828e6ac8be858870c2bf836258844f97d5",
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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": "8f840e47f190cbe61a96945c13e9551048d42cef",
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"lessThan": "207bb4ce8fe7de961ae7bb33569ad2cd61f44954",
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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": "8f840e47f190cbe61a96945c13e9551048d42cef",
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"lessThan": "f09a245f33e567b604efa1960b7a2d25dd9c8713",
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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": "8f840e47f190cbe61a96945c13e9551048d42cef",
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"lessThan": "7d8297e26b4e20b5d1c3c3fe51fe81a1c7fbc823",
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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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"include/net/sctp/sctp.h",
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"net/sctp/diag.c",
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"net/sctp/socket.c"
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],
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"versions": [
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{
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"version": "4.7",
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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": "4.7",
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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": "5.10.261",
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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": "5.15.212",
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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": "6.1.178",
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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": "6.6.145",
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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": "6.12.97",
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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": "6.18.40",
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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": "7.1.5",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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": "4.7",
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"versionEndExcluding": "5.10.261"
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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": "4.7",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.7",
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"versionEndExcluding": "6.1.178"
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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": "4.7",
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"versionEndExcluding": "6.6.145"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.7",
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"versionEndExcluding": "6.12.97"
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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.7",
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"versionEndExcluding": "7.1.5"
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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/f98c294a9369b6fe89e652c06357ee594be4dfa2"
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},
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{
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"url": "https://git.kernel.org/stable/c/8b38e3dcfde3077dbc03eb8ef88e03cc19f70b8a"
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},
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{
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"url": "https://git.kernel.org/stable/c/ec3c2d59a192e17e1014ba71afc368ba162ecac3"
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},
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{
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"url": "https://git.kernel.org/stable/c/722576aba0a6d9423714550b1c03239b0f0def77"
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},
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{
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"url": "https://git.kernel.org/stable/c/abe7f8828e6ac8be858870c2bf836258844f97d5"
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},
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{
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"url": "https://git.kernel.org/stable/c/207bb4ce8fe7de961ae7bb33569ad2cd61f44954"
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},
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{
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"url": "https://git.kernel.org/stable/c/f09a245f33e567b604efa1960b7a2d25dd9c8713"
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},
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{
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"url": "https://git.kernel.org/stable/c/7d8297e26b4e20b5d1c3c3fe51fe81a1c7fbc823"
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}
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],
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"title": "sctp: hold socket lock when dumping endpoints in sctp_diag",
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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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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-72447",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-11-06T16:55:33.287440Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-06T17:05:42.860Z"
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}
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}
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]
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}
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} |