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CVE-2023-53079 (GCVE-0-2023-53079)

Vulnerability from cvelistv5 – Published: 2025-05-02 15:55 – Updated: 2026-05-11 19:38
VLAI
Title
net/mlx5: Fix steering rules cleanup
Summary
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix steering rules cleanup vport's mc, uc and multicast rules are not deleted in teardown path when EEH happens. Since the vport's promisc settings(uc, mc and all) in firmware are reset after EEH, mlx5 driver will try to delete the above rules in the initialization path. This cause kernel crash because these software rules are no longer valid. Fix by nullifying these rules right after delete to avoid accessing any dangling pointers. Call Trace: __list_del_entry_valid+0xcc/0x100 (unreliable) tree_put_node+0xf4/0x1b0 [mlx5_core] tree_remove_node+0x30/0x70 [mlx5_core] mlx5_del_flow_rules+0x14c/0x1f0 [mlx5_core] esw_apply_vport_rx_mode+0x10c/0x200 [mlx5_core] esw_update_vport_rx_mode+0xb4/0x180 [mlx5_core] esw_vport_change_handle_locked+0x1ec/0x230 [mlx5_core] esw_enable_vport+0x130/0x260 [mlx5_core] mlx5_eswitch_enable_sriov+0x2a0/0x2f0 [mlx5_core] mlx5_device_enable_sriov+0x74/0x440 [mlx5_core] mlx5_load_one+0x114c/0x1550 [mlx5_core] mlx5_pci_resume+0x68/0xf0 [mlx5_core] eeh_report_resume+0x1a4/0x230 eeh_pe_dev_traverse+0x98/0x170 eeh_handle_normal_event+0x3e4/0x640 eeh_handle_event+0x4c/0x370 eeh_event_handler+0x14c/0x210 kthread+0x168/0x1b0 ret_from_kernel_thread+0x5c/0x84
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a35f71f27a614aff106cc89b86168962bce2725f , < 18cead61e437f4c7898acca0a5f3df12f801d97f (git)
Affected: a35f71f27a614aff106cc89b86168962bce2725f , < 4df1f2d36bdc9a368650bf14b9097c555e95f71d (git)
Affected: a35f71f27a614aff106cc89b86168962bce2725f , < 63546395a0e6ac264f78f65218086ce6014b4494 (git)
Affected: a35f71f27a614aff106cc89b86168962bce2725f , < 6f5780536181d1d0d09a11a1bc92f22e143447e2 (git)
Affected: a35f71f27a614aff106cc89b86168962bce2725f , < 922f56e9a795d6f3dd72d3428ebdd7ee040fa855 (git)
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Linux Linux Affected: 4.7
Unaffected: 0 , < 4.7 (semver)
Unaffected: 5.10.177 , ≤ 5.10.* (semver)
Unaffected: 5.15.105 , ≤ 5.15.* (semver)
Unaffected: 6.1.22 , ≤ 6.1.* (semver)
Unaffected: 6.2.9 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
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        "shortName": "Linux"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53079\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-02T16:15:26.923\",\"lastModified\":\"2026-06-17T06:44:15.220\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/mlx5: Fix steering rules cleanup\\n\\nvport\u0027s mc, uc and multicast rules are not deleted in teardown path when\\nEEH happens. Since the vport\u0027s promisc settings(uc, mc and all) in\\nfirmware are reset after EEH, mlx5 driver will try to delete the above\\nrules in the initialization path. This cause kernel crash because these\\nsoftware rules are no longer valid.\\n\\nFix by nullifying these rules right after delete to avoid accessing any dangling\\npointers.\\n\\nCall Trace:\\n__list_del_entry_valid+0xcc/0x100 (unreliable)\\ntree_put_node+0xf4/0x1b0 [mlx5_core]\\ntree_remove_node+0x30/0x70 [mlx5_core]\\nmlx5_del_flow_rules+0x14c/0x1f0 [mlx5_core]\\nesw_apply_vport_rx_mode+0x10c/0x200 [mlx5_core]\\nesw_update_vport_rx_mode+0xb4/0x180 [mlx5_core]\\nesw_vport_change_handle_locked+0x1ec/0x230 [mlx5_core]\\nesw_enable_vport+0x130/0x260 [mlx5_core]\\nmlx5_eswitch_enable_sriov+0x2a0/0x2f0 [mlx5_core]\\nmlx5_device_enable_sriov+0x74/0x440 [mlx5_core]\\nmlx5_load_one+0x114c/0x1550 [mlx5_core]\\nmlx5_pci_resume+0x68/0xf0 [mlx5_core]\\neeh_report_resume+0x1a4/0x230\\neeh_pe_dev_traverse+0x98/0x170\\neeh_handle_normal_event+0x3e4/0x640\\neeh_handle_event+0x4c/0x370\\neeh_event_handler+0x14c/0x210\\nkthread+0x168/0x1b0\\nret_from_kernel_thread+0x5c/0x84\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/mlx5: Se corrige la eliminaci\u00f3n de las reglas de direccionamiento de las reglas de limpieza de vport mc, uc y multicast en la ruta de desmontaje cuando se produce EEH. Dado que la configuraci\u00f3n promisc del vport (uc, mc y todas) en el firmware se restablece despu\u00e9s de EEH, el controlador mlx5 intentar\u00e1 eliminar las reglas mencionadas en la ruta de inicializaci\u00f3n. Esto provoca un fallo del kernel porque estas reglas de software ya no son v\u00e1lidas. Se corrige anulando estas reglas justo despu\u00e9s de la eliminaci\u00f3n para evitar el acceso a punteros colgantes. Rastreo de llamadas: __list_del_entry_valid+0xcc/0x100 (unreliable) tree_put_node+0xf4/0x1b0 [mlx5_core] tree_remove_node+0x30/0x70 [mlx5_core] mlx5_del_flow_rules+0x14c/0x1f0 [mlx5_core] esw_apply_vport_rx_mode+0x10c/0x200 [mlx5_core] esw_update_vport_rx_mode+0xb4/0x180 [mlx5_core] esw_vport_change_handle_locked+0x1ec/0x230 [mlx5_core] esw_enable_vport+0x130/0x260 [mlx5_core] mlx5_eswitch_enable_sriov+0x2a0/0x2f0 [mlx5_core] mlx5_device_enable_sriov+0x74/0x440 [mlx5_core] mlx5_load_one+0x114c/0x1550 [mlx5_core] mlx5_pci_resume+0x68/0xf0 [mlx5_core] eeh_report_resume+0x1a4/0x230 eeh_pe_dev_traverse+0x98/0x170 eeh_handle_normal_event+0x3e4/0x640 eeh_handle_event+0x4c/0x370 eeh_event_handler+0x14c/0x210 kthread+0x168/0x1b0 ret_from_kernel_thread+0x5c/0x84 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-21T18:50:07+00:00",
      "cve": "CVE-2023-53079",
      "id": "CVE-2023-53079",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "120",
      "product_status:known_affected": "166",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net/mlx5: Fix steering rules cleanup",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53079.json",
      "version": "3"
    }
  }
}



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Sightings

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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.
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Detection rules are retrieved from Rulezet.