240 lines
12 KiB
JSON
240 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-2026-64472",
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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": "2026-07-19T15:36:31.790Z",
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"datePublished": "2026-07-25T08:51:35.978Z",
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"dateUpdated": "2026-11-06T16:44:53.516Z"
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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": "2026-08-17T04:56:18.199Z"
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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\nvfio/mlx5: Fix racy bitfields and tighten struct layout\n\nBitfield operations are not atomic, they use a read-modify-write\npattern, therefore we should be careful not to pack bitfields that\ncan be concurrently updated into the same storage unit.\n\nThis split takes a binary approach: flags that are only modified\npre/post open/close remain bitfields, flags modified from user\naction, including actions that reach across to another device (ex.\nreset) use dedicated storage units.\n\nNote mlx5_vhca_page_tracker.status is relocated to fill the alignment\nhole this split exposes.\n\nBitfield justifications:\n\n migrate_cap: written only in mlx5vf_cmd_set_migratable() at probe\n chunk_mode: written only in mlx5vf_cmd_set_migratable() at probe\n mig_state_cap: written only in mlx5vf_cmd_set_migratable() at probe\n\nDedicated storage units:\n\n mdev_detach: written in the VF attach/detach event notifier\n mlx5fv_vf_event() at runtime\n log_active: written in mlx5vf_start_page_tracker()/\n mlx5vf_stop_page_tracker() during runtime dirty tracking\n deferred_reset: written in mlx5vf_state_mutex_unlock()/\n mlx5vf_pci_aer_reset_done() during runtime reset handling\n is_err: set by tracker error handling and dirty-log polling at runtime\n object_changed: set by tracker event handling and cleared by dirty-log\n polling at runtime"
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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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"drivers/vfio/pci/mlx5/cmd.h"
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],
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"versions": [
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{
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"version": "61a2f1460fd03285ea34c1a235f2f50f71e13a1f",
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"lessThan": "1dd99b8f4e143592e12e5a77e7b538bc698116cb",
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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": "61a2f1460fd03285ea34c1a235f2f50f71e13a1f",
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"lessThan": "f1db80a67da928a92ba460ede1be52d8941f46be",
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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": "61a2f1460fd03285ea34c1a235f2f50f71e13a1f",
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"lessThan": "399d806f998f7a25405fc1b97227e579aead24af",
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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": "61a2f1460fd03285ea34c1a235f2f50f71e13a1f",
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"lessThan": "7ed120b1a007bace57c461805519d70e1af44e59",
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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": "61a2f1460fd03285ea34c1a235f2f50f71e13a1f",
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"lessThan": "39d163627b51886492bf31f66cb02c94613d2287",
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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": "61a2f1460fd03285ea34c1a235f2f50f71e13a1f",
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"lessThan": "f2365a63b02ddea32e7db78b742c2503ec7b81f1",
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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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"drivers/vfio/pci/mlx5/cmd.h"
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],
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"versions": [
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{
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"version": "5.19",
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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": "5.19",
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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": "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": "7.1.4",
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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": "5.19",
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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": "5.19",
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"versionEndExcluding": "6.6.145"
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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": "5.19",
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"versionEndExcluding": "6.12.97"
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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": "5.19",
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"versionEndExcluding": "6.18.40"
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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": "5.19",
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"versionEndExcluding": "7.1.4"
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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": "5.19",
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"versionEndExcluding": "7.2"
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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/1dd99b8f4e143592e12e5a77e7b538bc698116cb"
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},
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{
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"url": "https://git.kernel.org/stable/c/f1db80a67da928a92ba460ede1be52d8941f46be"
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},
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{
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"url": "https://git.kernel.org/stable/c/399d806f998f7a25405fc1b97227e579aead24af"
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},
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{
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"url": "https://git.kernel.org/stable/c/7ed120b1a007bace57c461805519d70e1af44e59"
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},
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{
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"url": "https://git.kernel.org/stable/c/39d163627b51886492bf31f66cb02c94613d2287"
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},
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{
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"url": "https://git.kernel.org/stable/c/f2365a63b02ddea32e7db78b742c2503ec7b81f1"
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}
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],
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"title": "vfio/mlx5: Fix racy bitfields and tighten struct layout",
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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-2026-64472",
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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": "2026-11-06T16:39:33.414588Z"
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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": "2026-11-06T16:44:53.516Z"
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}
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}
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]
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}
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} |