fkie_cve-2022-48671
Vulnerability from fkie_nvd
Published
2024-05-03 15:15
Modified
2024-11-21 07:33
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/07191f984842d50020789ff14c75da436a7f46a9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/321488cfac7d0eb6d97de467015ff754f85813ffPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/43626dade36fa74d3329046f4ae2d7fdefe401c6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5db17805b6ba4c34dab303f49aea3562fc25af75Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/99bc25748e394d17f9e8b10cc7f273b8e64c1c7ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9f267393b036f1470fb12fb892d59e7ff8aeb58dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/07191f984842d50020789ff14c75da436a7f46a9Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/321488cfac7d0eb6d97de467015ff754f85813ffPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/43626dade36fa74d3329046f4ae2d7fdefe401c6Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5db17805b6ba4c34dab303f49aea3562fc25af75Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/99bc25748e394d17f9e8b10cc7f273b8e64c1c7ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9f267393b036f1470fb12fb892d59e7ff8aeb58dPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncgroup: Add missing cpus_read_lock() to cgroup_attach_task_all()\n\nsyzbot is hitting percpu_rwsem_assert_held(\u0026cpu_hotplug_lock) warning at\ncpuset_attach() [1], for commit 4f7e7236435ca0ab (\"cgroup: Fix\nthreadgroup_rwsem \u003c-\u003e 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."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: cgroup: agregue cpus_read_lock() faltante a cgroup_attach_task_all() syzbot est\u00e1 presionando la advertencia percpu_rwsem_assert_held(\u0026amp;cpu_hotplug_lock) en cpuset_attach() [1], para el commit 4f7e7236435ca0ab (\"cgroup: Fix threadgroup_rwsem \u0026lt;- \u0026gt; cpus_read_lock() deadlock\") se perdi\u00f3 que cpuset_attach() tambi\u00e9n se llama desde cgroup_attach_task_all(). Agregue cpus_read_lock() como lo hace cgroup_procs_write_start()."
    }
  ],
  "id": "CVE-2022-48671",
  "lastModified": "2024-11-21T07:33:44.827",
  "metrics": {
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          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
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}


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