linux — security advisory
In the Linux kernel, the following vulnerability has been resolved: cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all() syzbot is hitting percpu_rwsem_assert_held(&cpu_hotplug_lock) warning at cpuset_attach() [1], for commit 4f7e7236435ca0ab ("cgroup: Fix threadgroup_rwsem <-> cpus_read_lock() deadlock") missed that cpuset_attach() is also called from cgroup_attach_task_all(). Add cpus_read_lock() like what cgroup_procs_write_start() does.
- Products
- linux
- Affected versions
- Not specified
- Fixed versions
- 5.19.11-1
- CVEs
- CVE-2022-48671
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 15:07 UTC · Revision 1
Source evidence
In the Linux kernel, the following vulnerability has been resolved: cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all() syzbot is hitting percpu_rwsem_assert_held(&cpu_hotplug_lock) warning at cpuset_attach() [1], for commit 4f7e7236435ca0ab ("cgroup: Fix threadgroup_rwsem <-> cpus_read_lock() deadlock") missed that cpuset_attach() is also called from cgroup_attach_task_all(). Add cpus_read_lock() like what cgroup_procs_write_start() does.
osv:DEBIAN-CVE-2022-48671
linux
Fixed versions: 5.19.11-1
linux
Fixed versions: 5.19.11-1
linux
Fixed versions: 5.19.11-1
Complete source record
{
"id": "db3d9262699cc200d552bffeb6a38f148d46276f5d42d19aae55bf265c9d2339",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2022-48671",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2022-48671",
"summary": "In the Linux kernel, the following vulnerability has been resolved: cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all() syzbot is hitting percpu_rwsem_assert_held(&cpu_hotplug_lock) warning at cpuset_attach() [1], for commit 4f7e7236435ca0ab (\"cgroup: Fix threadgroup_rwsem <-> cpus_read_lock() deadlock\") missed that cpuset_attach() is also called from cgroup_attach_task_all(). Add cpus_read_lock() like what cgroup_procs_write_start() does.",
"evidence": "osv:DEBIAN-CVE-2022-48671",
"products": [
{
"name": {
"value": "linux",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
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"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
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],
"severity": "medium",
"structured": {
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"aliases": [
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"metrics": [
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}
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"affected": [
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"ecosystem": "Debian:12"
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"database_specific": {
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"ecosystem_specific": {
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{
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"package": {
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"ecosystem": "Debian:13"
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"database_specific": {
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{
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],
"package": {
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"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-48671.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-15T08:02:52.161626279Z",
"provider": "osv",
"upstream": [
"CVE-2022-48671"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2022-48671"
]
},
"related_cves": [
{
"value": "CVE-2022-48671",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 324422,
"published_at": "2024-05-03T15:15:07.433+00:00"
}