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{"bugzilla": {"description": "kernel: cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all()", "id": "2278940", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2278940"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ncgroup: Add missing cpus_read_lock() to cgroup_attach_task_all()\nsyzbot is hitting percpu_rwsem_assert_held(&cpu_hotplug_lock) warning at\ncpuset_attach() [1], for commit 4f7e7236435ca0ab (\"cgroup: Fix\nthreadgroup_rwsem <-> cpus_read_lock() deadlock\") missed that\ncpuset_attach() is also called from cgroup_attach_task_all().\nAdd cpus_read_lock() like what cgroup_procs_write_start() does.", "A flaw was found in the Linux kernel due to a missing `cpus_read_lock()` in the `cgroup_attach_task_all()` function. This issue led to a warning in the `cpuset_attach()` function, triggered by a deadlock between `threadgroup_rwsem` and `cpus_read_lock().`"], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2022-48671", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-03T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48671\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48671"], "statement": "Red Hat Enterprise Linux is not vulnerable to this CVE, as it does not affect the versions or configurations of the Linux kernel used in its distributions.", "threat_severity": "Moderate"}

{}