223 lines
11 KiB
JSON
223 lines
11 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-2022-50103",
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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": "2025-06-18T10:57:27.413Z",
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"datePublished": "2025-06-18T11:02:38.840Z",
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"dateUpdated": "2026-11-05T20:00:16.912Z"
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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": "2026-05-11T19:12:53.594Z"
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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\nsched, cpuset: Fix dl_cpu_busy() panic due to empty cs->cpus_allowed\n\nWith cgroup v2, the cpuset's cpus_allowed mask can be empty indicating\nthat the cpuset will just use the effective CPUs of its parent. So\ncpuset_can_attach() can call task_can_attach() with an empty mask.\nThis can lead to cpumask_any_and() returns nr_cpu_ids causing the call\nto dl_bw_of() to crash due to percpu value access of an out of bound\nCPU value. For example:\n\n\t[80468.182258] BUG: unable to handle page fault for address: ffffffff8b6648b0\n\t :\n\t[80468.191019] RIP: 0010:dl_cpu_busy+0x30/0x2b0\n\t :\n\t[80468.207946] Call Trace:\n\t[80468.208947] cpuset_can_attach+0xa0/0x140\n\t[80468.209953] cgroup_migrate_execute+0x8c/0x490\n\t[80468.210931] cgroup_update_dfl_csses+0x254/0x270\n\t[80468.211898] cgroup_subtree_control_write+0x322/0x400\n\t[80468.212854] kernfs_fop_write_iter+0x11c/0x1b0\n\t[80468.213777] new_sync_write+0x11f/0x1b0\n\t[80468.214689] vfs_write+0x1eb/0x280\n\t[80468.215592] ksys_write+0x5f/0xe0\n\t[80468.216463] do_syscall_64+0x5c/0x80\n\t[80468.224287] entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nFix that by using effective_cpus instead. For cgroup v1, effective_cpus\nis the same as cpus_allowed. For v2, effective_cpus is the real cpumask\nto be used by tasks within the cpuset anyway.\n\nAlso update task_can_attach()'s 2nd argument name to cs_effective_cpus to\nreflect the change. In addition, a check is added to task_can_attach()\nto guard against the possibility that cpumask_any_and() may return a\nvalue >= nr_cpu_ids."
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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/linux/sched.h",
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"kernel/cgroup/cpuset.c",
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"kernel/sched/core.c"
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],
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"versions": [
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{
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"version": "7f51412a415d87ea8598d14722fb31e4f5701257",
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"lessThan": "336626564b58071b8980a4e6a31a8f5d92705d9b",
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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": "7f51412a415d87ea8598d14722fb31e4f5701257",
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"lessThan": "147f66d22f58712dce7ccdd6a1f6cb3ee8042df4",
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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": "7f51412a415d87ea8598d14722fb31e4f5701257",
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"lessThan": "357f3f0e522a6ce1ce4a571cb780d9861d53bec7",
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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": "7f51412a415d87ea8598d14722fb31e4f5701257",
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"lessThan": "f56607b44c9896e51678a7e8cdd3a5479f4b4548",
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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": "7f51412a415d87ea8598d14722fb31e4f5701257",
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"lessThan": "b6e8d40d43ae4dec00c8fea2593eeea3114b8f44",
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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/linux/sched.h",
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"kernel/cgroup/cpuset.c",
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"kernel/sched/core.c"
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],
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"versions": [
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{
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"version": "3.19",
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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": "3.19",
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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": "5.10.137",
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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": "5.15.61",
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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": "5.18.18",
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"lessThanOrEqual": "5.18.*",
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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": "5.19.2",
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"lessThanOrEqual": "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": "6.0",
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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": "3.19",
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"versionEndExcluding": "5.10.137"
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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": "3.19",
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"versionEndExcluding": "5.15.61"
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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": "3.19",
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"versionEndExcluding": "5.18.18"
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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": "3.19",
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"versionEndExcluding": "5.19.2"
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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": "3.19",
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"versionEndExcluding": "6.0"
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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/336626564b58071b8980a4e6a31a8f5d92705d9b"
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},
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{
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"url": "https://git.kernel.org/stable/c/147f66d22f58712dce7ccdd6a1f6cb3ee8042df4"
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},
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{
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"url": "https://git.kernel.org/stable/c/357f3f0e522a6ce1ce4a571cb780d9861d53bec7"
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},
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{
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"url": "https://git.kernel.org/stable/c/f56607b44c9896e51678a7e8cdd3a5479f4b4548"
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},
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{
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"url": "https://git.kernel.org/stable/c/b6e8d40d43ae4dec00c8fea2593eeea3114b8f44"
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}
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],
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"title": "sched, cpuset: Fix dl_cpu_busy() panic due to empty cs->cpus_allowed",
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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-2022-50103",
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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": "2026-11-05T19:54:25.132451Z"
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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": "2026-11-05T20:00:16.912Z"
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}
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}
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]
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}
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} |