fkie_cve-2025-21662
Vulnerability from fkie_nvd
Published
2025-01-21 13:15
Modified
2025-09-26 16:20
Severity ?
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: net/mlx5: Fix variable not being completed when function returns When cmd_alloc_index(), fails cmd_work_handler() needs to complete ent->slotted before returning early. Otherwise the task which issued the command may hang: mlx5_core 0000:01:00.0: cmd_work_handler:877:(pid 3880418): failed to allocate command entry INFO: task kworker/13:2:4055883 blocked for more than 120 seconds. Not tainted 4.19.90-25.44.v2101.ky10.aarch64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/13:2 D 0 4055883 2 0x00000228 Workqueue: events mlx5e_tx_dim_work [mlx5_core] Call trace: __switch_to+0xe8/0x150 __schedule+0x2a8/0x9b8 schedule+0x2c/0x88 schedule_timeout+0x204/0x478 wait_for_common+0x154/0x250 wait_for_completion+0x28/0x38 cmd_exec+0x7a0/0xa00 [mlx5_core] mlx5_cmd_exec+0x54/0x80 [mlx5_core] mlx5_core_modify_cq+0x6c/0x80 [mlx5_core] mlx5_core_modify_cq_moderation+0xa0/0xb8 [mlx5_core] mlx5e_tx_dim_work+0x54/0x68 [mlx5_core] process_one_work+0x1b0/0x448 worker_thread+0x54/0x468 kthread+0x134/0x138 ret_from_fork+0x10/0x18
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0e2909c6bec9048f49d0c8e16887c63b50b14647Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/229cc10284373fbe754e623b7033dca7e7470ec8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/36124081f6ffd9dfaad48830bdf106bb82a9457dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f0a2808767ac39f64b1d9a0ff865c255073cf3d4Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.13
linux linux_kernel 6.13
linux linux_kernel 6.13
linux linux_kernel 6.13
linux linux_kernel 6.13
linux linux_kernel 6.13


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Fix variable not being completed when function returns\n\nWhen cmd_alloc_index(), fails cmd_work_handler() needs\nto complete ent-\u003eslotted before returning early.\nOtherwise the task which issued the command may hang:\n\n   mlx5_core 0000:01:00.0: cmd_work_handler:877:(pid 3880418): failed to allocate command entry\n   INFO: task kworker/13:2:4055883 blocked for more than 120 seconds.\n         Not tainted 4.19.90-25.44.v2101.ky10.aarch64 #1\n   \"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\n   kworker/13:2    D    0 4055883      2 0x00000228\n   Workqueue: events mlx5e_tx_dim_work [mlx5_core]\n   Call trace:\n      __switch_to+0xe8/0x150\n      __schedule+0x2a8/0x9b8\n      schedule+0x2c/0x88\n      schedule_timeout+0x204/0x478\n      wait_for_common+0x154/0x250\n      wait_for_completion+0x28/0x38\n      cmd_exec+0x7a0/0xa00 [mlx5_core]\n      mlx5_cmd_exec+0x54/0x80 [mlx5_core]\n      mlx5_core_modify_cq+0x6c/0x80 [mlx5_core]\n      mlx5_core_modify_cq_moderation+0xa0/0xb8 [mlx5_core]\n      mlx5e_tx_dim_work+0x54/0x68 [mlx5_core]\n      process_one_work+0x1b0/0x448\n      worker_thread+0x54/0x468\n      kthread+0x134/0x138\n      ret_from_fork+0x10/0x18"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/mlx5: Se solucion\u00f3 que la variable no se completara cuando la funci\u00f3n retorna Cuando cmd_alloc_index(), falla cmd_work_handler() debe completar ent-\u0026gt;slotted antes de regresar antes. De lo contrario, la tarea que emiti\u00f3 el comando puede bloquearse: mlx5_core 0000:01:00.0: cmd_work_handler:877:(pid 3880418): no se pudo asignar la entrada del comando INFO: la tarea kworker/13:2:4055883 se bloque\u00f3 durante m\u00e1s de 120 segundos. No est\u00e1 contaminada 4.19.90-25.44.v2101.ky10.aarch64 #1 \"echo 0 \u0026gt; /proc/sys/kernel/hung_task_timeout_secs\" disables this message. kworker/13:2 D 0 4055883 2 0x00000228 Workqueue: events mlx5e_tx_dim_work [mlx5_core] Call trace: __switch_to+0xe8/0x150 __schedule+0x2a8/0x9b8 schedule+0x2c/0x88 schedule_timeout+0x204/0x478 wait_for_common+0x154/0x250 wait_for_completion+0x28/0x38 cmd_exec+0x7a0/0xa00 [mlx5_core] mlx5_cmd_exec+0x54/0x80 [mlx5_core] mlx5_core_modify_cq+0x6c/0x80 [mlx5_core] mlx5_core_modify_cq_moderation+0xa0/0xb8 [mlx5_core] mlx5e_tx_dim_work+0x54/0x68 [mlx5_core] process_one_work+0x1b0/0x448 worker_thread+0x54/0x468 kthread+0x134/0x138 ret_from_fork+0x10/0x18  "
    }
  ],
  "id": "CVE-2025-21662",
  "lastModified": "2025-09-26T16:20:15.460",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-01-21T13:15:09.847",
  "references": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
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          "lang": "en",
          "value": "NVD-CWE-noinfo"
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      ],
      "source": "nvd@nist.gov",
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}


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