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vuln-cve/data/2022/48xxx/CVE-2022-48800.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2022-48800",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2024-07-16T11:38:08.895Z",
"datePublished": "2024-07-16T11:43:53.577Z",
"dateUpdated": "2026-05-11T18:47:22.938Z"
},
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"shortName": "Linux",
"dateUpdated": "2026-05-11T18:47:22.938Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: vmscan: remove deadlock due to throttling failing to make progress\n\nA soft lockup bug in kcompactd was reported in a private bugzilla with\nthe following visible in dmesg;\n\n watchdog: BUG: soft lockup - CPU#33 stuck for 26s! [kcompactd0:479]\n watchdog: BUG: soft lockup - CPU#33 stuck for 52s! [kcompactd0:479]\n watchdog: BUG: soft lockup - CPU#33 stuck for 78s! [kcompactd0:479]\n watchdog: BUG: soft lockup - CPU#33 stuck for 104s! [kcompactd0:479]\n\nThe machine had 256G of RAM with no swap and an earlier failed\nallocation indicated that node 0 where kcompactd was run was potentially\nunreclaimable;\n\n Node 0 active_anon:29355112kB inactive_anon:2913528kB active_file:0kB\n inactive_file:0kB unevictable:64kB isolated(anon):0kB isolated(file):0kB\n mapped:8kB dirty:0kB writeback:0kB shmem:26780kB shmem_thp:\n 0kB shmem_pmdmapped: 0kB anon_thp: 23480320kB writeback_tmp:0kB\n kernel_stack:2272kB pagetables:24500kB all_unreclaimable? yes\n\nVlastimil Babka investigated a crash dump and found that a task\nmigrating pages was trying to drain PCP lists;\n\n PID: 52922 TASK: ffff969f820e5000 CPU: 19 COMMAND: \"kworker/u128:3\"\n Call Trace:\n __schedule\n schedule\n schedule_timeout\n wait_for_completion\n __flush_work\n __drain_all_pages\n __alloc_pages_slowpath.constprop.114\n __alloc_pages\n alloc_migration_target\n migrate_pages\n migrate_to_node\n do_migrate_pages\n cpuset_migrate_mm_workfn\n process_one_work\n worker_thread\n kthread\n ret_from_fork\n\nThis failure is specific to CONFIG_PREEMPT=n builds. The root of the\nproblem is that kcompact0 is not rescheduling on a CPU while a task that\nhas isolated a large number of the pages from the LRU is waiting on\nkcompact0 to reschedule so the pages can be released. While\nshrink_inactive_list() only loops once around too_many_isolated, reclaim\ncan continue without rescheduling if sc->skipped_deactivate == 1 which\ncould happen if there was no file LRU and the inactive anon list was not\nlow."
}
],
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{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"mm/vmscan.c"
],
"versions": [
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"version": "d818fca1cac31b1fc9301bda83e195a46fb4ebaa",
"lessThan": "3980cff6349687f73d5109f156f23cb261c24164",
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"versionType": "git"
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"mm/vmscan.c"
],
"versions": [
{
"version": "5.16",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.16",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.16.10",
"lessThanOrEqual": "5.16.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.17",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
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"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
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"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.16",
"versionEndExcluding": "5.16.10"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "5.17"
}
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"references": [
{
"url": "https://git.kernel.org/stable/c/3980cff6349687f73d5109f156f23cb261c24164"
},
{
"url": "https://git.kernel.org/stable/c/b485c6f1f9f54b81443efda5f3d8a5036ba2cd91"
}
],
"title": "mm: vmscan: remove deadlock due to throttling failing to make progress",
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"dateUpdated": "2024-08-03T15:25:01.613Z"
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"title": "CVE Program Container",
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"version": "2.0.3",
"timestamp": "2024-09-10T16:59:06.751767Z"
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