242 lines
12 KiB
JSON
242 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-2026-43344",
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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": "2026-05-01T14:12:56.003Z",
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"datePublished": "2026-05-08T13:39:30.537Z",
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"dateUpdated": "2026-11-06T15:42:49.780Z"
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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": "2026-10-30T12:25:27.301Z"
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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\nperf/x86/intel/uncore: Fix die ID init and look up bugs\n\nIn snbep_pci2phy_map_init(), in the nr_node_ids > 8 path,\nuncore_device_to_die() may return -1 when all CPUs associated\nwith the UBOX device are offline.\n\nRemove the WARN_ON_ONCE(die_id == -1) check for two reasons:\n\n- The current code breaks out of the loop. This is incorrect because\n pci_get_device() does not guarantee iteration in domain or bus order,\n so additional UBOX devices may be skipped during the scan.\n\n- Returning -EINVAL is incorrect, since marking offline buses with\n die_id == -1 is expected and should not be treated as an error.\n\nSeparately, when NUMA is disabled on a NUMA-capable platform,\npcibus_to_node() returns NUMA_NO_NODE, causing uncore_device_to_die()\nto return -1 for all PCI devices. As a result,\nspr_update_device_location(), used on Intel SPR and EMR, ignores the\ncorresponding PMON units and does not add them to the RB tree.\n\nFix this by using uncore_pcibus_to_dieid(), which retrieves topology\nfrom the UBOX GIDNIDMAP register and works regardless of whether NUMA\nis enabled in Linux. This requires snbep_pci2phy_map_init() to be\nadded in spr_uncore_pci_init().\n\nKeep uncore_device_to_die() only for the nr_node_ids > 8 case, where\nNUMA is expected to be enabled."
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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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"arch/x86/events/intel/uncore.c",
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"arch/x86/events/intel/uncore_snbep.c"
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],
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"versions": [
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{
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"version": "9a7832ce3d920426a36cdd78eda4b3568d4d09e3",
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"lessThan": "4eb511275e37c580156e787baab5232aeb0bfea0",
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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": "9a7832ce3d920426a36cdd78eda4b3568d4d09e3",
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"lessThan": "184870af0e73f8ea2577c751fa098681465249f2",
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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": "9a7832ce3d920426a36cdd78eda4b3568d4d09e3",
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"lessThan": "bdb35811ff41a1678620a407056b6372f350028a",
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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": "9a7832ce3d920426a36cdd78eda4b3568d4d09e3",
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"lessThan": "c79ef3342632e71ac8612a2a1cc17ac84dd258b4",
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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": "9a7832ce3d920426a36cdd78eda4b3568d4d09e3",
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"lessThan": "6a5dc3ee97581da2907fc7acd62853f07184de67",
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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": "9a7832ce3d920426a36cdd78eda4b3568d4d09e3",
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"lessThan": "a16d1ec4dd0cdcf689f324adde6067083bce9099",
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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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"arch/x86/events/intel/uncore.c",
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"arch/x86/events/intel/uncore_snbep.c"
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],
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"versions": [
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{
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"version": "5.12",
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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": "5.12",
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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": "6.1.191",
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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": "6.6.157",
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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": "6.12.109",
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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": "6.18.50",
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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": "6.19.14",
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"lessThanOrEqual": "6.19.*",
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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": "7.0",
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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": "5.12",
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"versionEndExcluding": "6.1.191"
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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": "5.12",
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"versionEndExcluding": "6.6.157"
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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": "5.12",
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"versionEndExcluding": "6.12.109"
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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": "5.12",
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"versionEndExcluding": "6.18.50"
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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": "5.12",
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"versionEndExcluding": "6.19.14"
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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": "5.12",
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"versionEndExcluding": "7.0"
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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/4eb511275e37c580156e787baab5232aeb0bfea0"
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},
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{
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"url": "https://git.kernel.org/stable/c/184870af0e73f8ea2577c751fa098681465249f2"
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},
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{
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"url": "https://git.kernel.org/stable/c/bdb35811ff41a1678620a407056b6372f350028a"
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},
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{
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"url": "https://git.kernel.org/stable/c/c79ef3342632e71ac8612a2a1cc17ac84dd258b4"
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},
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{
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"url": "https://git.kernel.org/stable/c/6a5dc3ee97581da2907fc7acd62853f07184de67"
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},
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{
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"url": "https://git.kernel.org/stable/c/a16d1ec4dd0cdcf689f324adde6067083bce9099"
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}
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],
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"title": "perf/x86/intel/uncore: Fix die ID init and look up bugs",
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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-2026-43344",
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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": "2026-11-06T15:36:08.657780Z"
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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": "2026-11-06T15:42:49.780Z"
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}
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}
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]
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}
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} |