CVE-2022-48658 (GCVE-0-2022-48658)

Vulnerability from cvelistv5 – Published: 2024-04-28 13:01 – Updated: 2026-05-11 18:44
VLAI
Title
mm: slub: fix flush_cpu_slab()/__free_slab() invocations in task context.
Summary
In the Linux kernel, the following vulnerability has been resolved: mm: slub: fix flush_cpu_slab()/__free_slab() invocations in task context. Commit 5a836bf6b09f ("mm: slub: move flush_cpu_slab() invocations __free_slab() invocations out of IRQ context") moved all flush_cpu_slab() invocations to the global workqueue to avoid a problem related with deactivate_slab()/__free_slab() being called from an IRQ context on PREEMPT_RT kernels. When the flush_all_cpu_locked() function is called from a task context it may happen that a workqueue with WQ_MEM_RECLAIM bit set ends up flushing the global workqueue, this will cause a dependency issue. workqueue: WQ_MEM_RECLAIM nvme-delete-wq:nvme_delete_ctrl_work [nvme_core] is flushing !WQ_MEM_RECLAIM events:flush_cpu_slab WARNING: CPU: 37 PID: 410 at kernel/workqueue.c:2637 check_flush_dependency+0x10a/0x120 Workqueue: nvme-delete-wq nvme_delete_ctrl_work [nvme_core] RIP: 0010:check_flush_dependency+0x10a/0x120[ 453.262125] Call Trace: __flush_work.isra.0+0xbf/0x220 ? __queue_work+0x1dc/0x420 flush_all_cpus_locked+0xfb/0x120 __kmem_cache_shutdown+0x2b/0x320 kmem_cache_destroy+0x49/0x100 bioset_exit+0x143/0x190 blk_release_queue+0xb9/0x100 kobject_cleanup+0x37/0x130 nvme_fc_ctrl_free+0xc6/0x150 [nvme_fc] nvme_free_ctrl+0x1ac/0x2b0 [nvme_core] Fix this bug by creating a workqueue for the flush operation with the WQ_MEM_RECLAIM bit set.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5a836bf6b09f99ead1b69457ff39ab3011ece57b , < 61703b248be993eb4997b00ae5d3318e6d8f3c5b (git)
Affected: 5a836bf6b09f99ead1b69457ff39ab3011ece57b , < df6cb39335cf5a1b918e8dbd8ba7cd9f1d00e45a (git)
Affected: 5a836bf6b09f99ead1b69457ff39ab3011ece57b , < e45cc288724f0cfd497bb5920bcfa60caa335729 (git)
Create a notification for this product.
Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.71 , ≤ 5.15.* (semver)
Unaffected: 5.19.12 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T15:17:55.669Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/61703b248be993eb4997b00ae5d3318e6d8f3c5b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/df6cb39335cf5a1b918e8dbd8ba7cd9f1d00e45a"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/e45cc288724f0cfd497bb5920bcfa60caa335729"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-48658",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:46:04.814997Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:55.526Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/slub.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "61703b248be993eb4997b00ae5d3318e6d8f3c5b",
              "status": "affected",
              "version": "5a836bf6b09f99ead1b69457ff39ab3011ece57b",
              "versionType": "git"
            },
            {
              "lessThan": "df6cb39335cf5a1b918e8dbd8ba7cd9f1d00e45a",
              "status": "affected",
              "version": "5a836bf6b09f99ead1b69457ff39ab3011ece57b",
              "versionType": "git"
            },
            {
              "lessThan": "e45cc288724f0cfd497bb5920bcfa60caa335729",
              "status": "affected",
              "version": "5a836bf6b09f99ead1b69457ff39ab3011ece57b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/slub.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.71",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.71",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.12",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: slub: fix flush_cpu_slab()/__free_slab() invocations in task context.\n\nCommit 5a836bf6b09f (\"mm: slub: move flush_cpu_slab() invocations\n__free_slab() invocations out of IRQ context\") moved all flush_cpu_slab()\ninvocations to the global workqueue to avoid a problem related\nwith deactivate_slab()/__free_slab() being called from an IRQ context\non PREEMPT_RT kernels.\n\nWhen the flush_all_cpu_locked() function is called from a task context\nit may happen that a workqueue with WQ_MEM_RECLAIM bit set ends up\nflushing the global workqueue, this will cause a dependency issue.\n\n workqueue: WQ_MEM_RECLAIM nvme-delete-wq:nvme_delete_ctrl_work [nvme_core]\n   is flushing !WQ_MEM_RECLAIM events:flush_cpu_slab\n WARNING: CPU: 37 PID: 410 at kernel/workqueue.c:2637\n   check_flush_dependency+0x10a/0x120\n Workqueue: nvme-delete-wq nvme_delete_ctrl_work [nvme_core]\n RIP: 0010:check_flush_dependency+0x10a/0x120[  453.262125] Call Trace:\n __flush_work.isra.0+0xbf/0x220\n ? __queue_work+0x1dc/0x420\n flush_all_cpus_locked+0xfb/0x120\n __kmem_cache_shutdown+0x2b/0x320\n kmem_cache_destroy+0x49/0x100\n bioset_exit+0x143/0x190\n blk_release_queue+0xb9/0x100\n kobject_cleanup+0x37/0x130\n nvme_fc_ctrl_free+0xc6/0x150 [nvme_fc]\n nvme_free_ctrl+0x1ac/0x2b0 [nvme_core]\n\nFix this bug by creating a workqueue for the flush operation with\nthe WQ_MEM_RECLAIM bit set."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:44:38.141Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/61703b248be993eb4997b00ae5d3318e6d8f3c5b"
        },
        {
          "url": "https://git.kernel.org/stable/c/df6cb39335cf5a1b918e8dbd8ba7cd9f1d00e45a"
        },
        {
          "url": "https://git.kernel.org/stable/c/e45cc288724f0cfd497bb5920bcfa60caa335729"
        }
      ],
      "title": "mm: slub: fix flush_cpu_slab()/__free_slab() invocations in task context.",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48658",
    "datePublished": "2024-04-28T13:01:12.987Z",
    "dateReserved": "2024-02-25T13:44:28.317Z",
    "dateUpdated": "2026-05-11T18:44:38.141Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-48658",
      "date": "2026-07-24",
      "epss": "0.00242",
      "percentile": "0.15465"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-48658\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-28T13:15:07.760\",\"lastModified\":\"2026-06-17T05:15:50.790\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm: slub: fix flush_cpu_slab()/__free_slab() invocations in task context.\\n\\nCommit 5a836bf6b09f (\\\"mm: slub: move flush_cpu_slab() invocations\\n__free_slab() invocations out of IRQ context\\\") moved all flush_cpu_slab()\\ninvocations to the global workqueue to avoid a problem related\\nwith deactivate_slab()/__free_slab() being called from an IRQ context\\non PREEMPT_RT kernels.\\n\\nWhen the flush_all_cpu_locked() function is called from a task context\\nit may happen that a workqueue with WQ_MEM_RECLAIM bit set ends up\\nflushing the global workqueue, this will cause a dependency issue.\\n\\n workqueue: WQ_MEM_RECLAIM nvme-delete-wq:nvme_delete_ctrl_work [nvme_core]\\n   is flushing !WQ_MEM_RECLAIM events:flush_cpu_slab\\n WARNING: CPU: 37 PID: 410 at kernel/workqueue.c:2637\\n   check_flush_dependency+0x10a/0x120\\n Workqueue: nvme-delete-wq nvme_delete_ctrl_work [nvme_core]\\n RIP: 0010:check_flush_dependency+0x10a/0x120[  453.262125] Call Trace:\\n __flush_work.isra.0+0xbf/0x220\\n ? __queue_work+0x1dc/0x420\\n flush_all_cpus_locked+0xfb/0x120\\n __kmem_cache_shutdown+0x2b/0x320\\n kmem_cache_destroy+0x49/0x100\\n bioset_exit+0x143/0x190\\n blk_release_queue+0xb9/0x100\\n kobject_cleanup+0x37/0x130\\n nvme_fc_ctrl_free+0xc6/0x150 [nvme_fc]\\n nvme_free_ctrl+0x1ac/0x2b0 [nvme_core]\\n\\nFix this bug by creating a workqueue for the flush operation with\\nthe WQ_MEM_RECLAIM bit set.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm: slub: corrige las invocaciones de flu_cpu_slab()/__free_slab() en el contexto de la tarea. Commit 5a836bf6b09f (\\\"mm: slub: mover invocaciones de flu_cpu_slab() invocaciones de __free_slab() fuera del contexto IRQ\\\") movi\u00f3 todas las invocaciones de flu_cpu_slab() a la cola de trabajo global para evitar un problema relacionado con la llamada de desactivate_slab()/__free_slab() desde un Contexto IRQ en n\u00facleos PREEMPT_RT. Cuando se llama a la funci\u00f3n Flush_all_cpu_locked() desde un contexto de tarea, puede suceder que una cola de trabajo con el bit WQ_MEM_RECLAIM configurado termine vaciando la cola de trabajo global, esto causar\u00e1 un problema de dependencia. cola de trabajo: WQ_MEM_RECLAIM nvme-delete-wq:nvme_delete_ctrl_work [nvme_core] se est\u00e1 vaciando! Eventos WQ_MEM_RECLAIM:flush_cpu_slab ADVERTENCIA: CPU: 37 PID: 410 en kernel/workqueue.c:2637 check_flush_dependency+0x10a/0x120 Cola de trabajo: vme-delete-wq nvme_delete_ctrl_work [ nvme_core] RIP: 0010:check_flush_dependency+0x10a/0x120[ 453.262125] Seguimiento de llamadas: __flush_work.isra.0+0xbf/0x220? __queue_work+0x1dc/0x420 Flush_all_cpus_locked+0xfb/0x120 __kmem_cache_shutdown+0x2b/0x320 kmem_cache_destroy+0x49/0x100 bioset_exit+0x143/0x190 blk_release_queue+0xb9/0x100 kobject_cleanup+0 x37/0x130 nvme_fc_ctrl_free+0xc6/0x150 [nvme_fc] nvme_free_ctrl+0x1ac/0x2b0 [nvme_core ] Corrija este error creando una cola de trabajo para la operaci\u00f3n de vaciado con el bit WQ_MEM_RECLAIM establecido.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"mm/slub.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5a836bf6b09f99ead1b69457ff39ab3011ece57b\",\"lessThan\":\"61703b248be993eb4997b00ae5d3318e6d8f3c5b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5a836bf6b09f99ead1b69457ff39ab3011ece57b\",\"lessThan\":\"df6cb39335cf5a1b918e8dbd8ba7cd9f1d00e45a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5a836bf6b09f99ead1b69457ff39ab3011ece57b\",\"lessThan\":\"e45cc288724f0cfd497bb5920bcfa60caa335729\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"mm/slub.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.15\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.15\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.71\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.19.12\",\"lessThanOrEqual\":\"5.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.0\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-09-10T15:46:04.814997Z\",\"id\":\"CVE-2022-48658\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartExcluding\":\"5.15\",\"versionEndExcluding\":\"5.15.71\",\"matchCriteriaId\":\"0DD72702-7EDC-4831-87FE-AAE2CF9EA537\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartExcluding\":\"5.16\",\"versionEndExcluding\":\"5.19.12\",\"matchCriteriaId\":\"2D86B159-0AA3-429A-8FE5-B87DB2046DB6\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/61703b248be993eb4997b00ae5d3318e6d8f3c5b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/df6cb39335cf5a1b918e8dbd8ba7cd9f1d00e45a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e45cc288724f0cfd497bb5920bcfa60caa335729\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/61703b248be993eb4997b00ae5d3318e6d8f3c5b\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/df6cb39335cf5a1b918e8dbd8ba7cd9f1d00e45a\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e45cc288724f0cfd497bb5920bcfa60caa335729\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T14:40:20+00:00",
      "cve": "CVE-2022-48658",
      "id": "CVE-2022-48658",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: mm: slub: fix flush_cpu_slab()/__free_slab() invocations in task context.",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-48658.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/61703b248be993eb4997b00ae5d3318e6d8f3c5b\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/df6cb39335cf5a1b918e8dbd8ba7cd9f1d00e45a\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/e45cc288724f0cfd497bb5920bcfa60caa335729\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T15:17:55.669Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-48658\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T15:46:04.814997Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:19.646Z\"}}], \"cna\": {\"title\": \"mm: slub: fix flush_cpu_slab()/__free_slab() invocations in task context.\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5a836bf6b09f99ead1b69457ff39ab3011ece57b\", \"lessThan\": \"61703b248be993eb4997b00ae5d3318e6d8f3c5b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5a836bf6b09f99ead1b69457ff39ab3011ece57b\", \"lessThan\": \"df6cb39335cf5a1b918e8dbd8ba7cd9f1d00e45a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5a836bf6b09f99ead1b69457ff39ab3011ece57b\", \"lessThan\": \"e45cc288724f0cfd497bb5920bcfa60caa335729\", \"versionType\": \"git\"}], \"programFiles\": [\"mm/slub.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.15.71\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.19.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.19.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"mm/slub.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/61703b248be993eb4997b00ae5d3318e6d8f3c5b\"}, {\"url\": \"https://git.kernel.org/stable/c/df6cb39335cf5a1b918e8dbd8ba7cd9f1d00e45a\"}, {\"url\": \"https://git.kernel.org/stable/c/e45cc288724f0cfd497bb5920bcfa60caa335729\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm: slub: fix flush_cpu_slab()/__free_slab() invocations in task context.\\n\\nCommit 5a836bf6b09f (\\\"mm: slub: move flush_cpu_slab() invocations\\n__free_slab() invocations out of IRQ context\\\") moved all flush_cpu_slab()\\ninvocations to the global workqueue to avoid a problem related\\nwith deactivate_slab()/__free_slab() being called from an IRQ context\\non PREEMPT_RT kernels.\\n\\nWhen the flush_all_cpu_locked() function is called from a task context\\nit may happen that a workqueue with WQ_MEM_RECLAIM bit set ends up\\nflushing the global workqueue, this will cause a dependency issue.\\n\\n workqueue: WQ_MEM_RECLAIM nvme-delete-wq:nvme_delete_ctrl_work [nvme_core]\\n   is flushing !WQ_MEM_RECLAIM events:flush_cpu_slab\\n WARNING: CPU: 37 PID: 410 at kernel/workqueue.c:2637\\n   check_flush_dependency+0x10a/0x120\\n Workqueue: nvme-delete-wq nvme_delete_ctrl_work [nvme_core]\\n RIP: 0010:check_flush_dependency+0x10a/0x120[  453.262125] Call Trace:\\n __flush_work.isra.0+0xbf/0x220\\n ? __queue_work+0x1dc/0x420\\n flush_all_cpus_locked+0xfb/0x120\\n __kmem_cache_shutdown+0x2b/0x320\\n kmem_cache_destroy+0x49/0x100\\n bioset_exit+0x143/0x190\\n blk_release_queue+0xb9/0x100\\n kobject_cleanup+0x37/0x130\\n nvme_fc_ctrl_free+0xc6/0x150 [nvme_fc]\\n nvme_free_ctrl+0x1ac/0x2b0 [nvme_core]\\n\\nFix this bug by creating a workqueue for the flush operation with\\nthe WQ_MEM_RECLAIM bit set.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.71\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.19.12\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0\", \"versionStartIncluding\": \"5.15\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T18:44:38.141Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-48658\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T18:44:38.141Z\", \"dateReserved\": \"2024-02-25T13:44:28.317Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-28T13:01:12.987Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.