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CVE-2026-97962

Estado: RecibidaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

net/mlx5e: Move representor vnic reporter to eswitch devlink port

Move the reporter's lifecycle to the eswitch devlink port (un)register paths, which are already serialized by the devlink instance lock, and store the handle on mlx5_devlink_port. Use the port's mlx5_vport as the reporter priv since the diagnose callback only needs a device handle and a vport number, and mlx5_vport carries both and is initialized before any representor driver probes.

Detalles técnicos trazas, registros y código del informe original
The representor vnic devlink health reporter is created and destroyed
along the representor netdev (un)load path, which is not serialized by
the devlink instance lock. Destroying the reporter from there triggers
a devl_assert_locked() splat on driver unbind:
  WARNING: net/devlink/core.c:259 at devl_assert_locked+0x54/0x70, CPU#2: bash/3758
  Modules linked in: mlx5_vdpa vringh vdpa mlx5_ib mlx5_fwctl mlx5_core ...
  CPU: 2 UID: 0 PID: 3758 Comm: bash Tainted: G        W           6.19.0+ #1 PREEMPT
  Tainted: [W]=WARN
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), ...
  RIP: 0010:devl_assert_locked+0x54/0x70
  Call Trace:
   <TASK>
   devl_health_reporter_destroy+0x3a/0x1b0
   mlx5e_vport_rep_unload+0x12d/0x2b0 [mlx5_core]
   mlx5_eswitch_unregister_vport_reps+0x1b8/0x220 [mlx5_core]
   ? __esw_offloads_unload_rep+0x190/0x190 [mlx5_core]
   ? kernfs_remove_by_name_ns+0xc3/0xf0
   device_release_driver_internal+0x3b2/0x560
   unbind_store+0xce/0xf0

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-97962",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "cf14af140a5ad0937d385ce693100f33f02e9c54",
              "lessThan": "dcaba72c85c14fe7393a59d61695941e6ccbd7d7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cf14af140a5ad0937d385ce693100f33f02e9c54",
              "lessThan": "d1fcff9b39bac188ef62a77ebd176484be928ec2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cf14af140a5ad0937d385ce693100f33f02e9c54",
              "lessThan": "7f26a5e8040b4957ef4dbdfcde6cc7ba2db53937",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/mellanox/mlx5/core/en_rep.c",
            "drivers/net/ethernet/mellanox/mlx5/core/en_rep.h",
            "drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c",
            "drivers/net/ethernet/mellanox/mlx5/core/eswitch.h"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.4",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.7",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/mellanox/mlx5/core/en_rep.c",
            "drivers/net/ethernet/mellanox/mlx5/core/en_rep.h",
            "drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c",
            "drivers/net/ethernet/mellanox/mlx5/core/eswitch.h"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-25T11:17:23.970",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/7f26a5e8040b4957ef4dbdfcde6cc7ba2db53937",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d1fcff9b39bac188ef62a77ebd176484be928ec2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dcaba72c85c14fe7393a59d61695941e6ccbd7d7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Move representor vnic reporter to eswitch devlink port\n\nThe representor vnic devlink health reporter is created and destroyed\nalong the representor netdev (un)load path, which is not serialized by\nthe devlink instance lock. Destroying the reporter from there triggers\na devl_assert_locked() splat on driver unbind:\n  WARNING: net/devlink/core.c:259 at devl_assert_locked+0x54/0x70, CPU#2: bash/3758\n  Modules linked in: mlx5_vdpa vringh vdpa mlx5_ib mlx5_fwctl mlx5_core ...\n  CPU: 2 UID: 0 PID: 3758 Comm: bash Tainted: G        W           6.19.0+ #1 PREEMPT\n  Tainted: [W]=WARN\n  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), ...\n  RIP: 0010:devl_assert_locked+0x54/0x70\n  Call Trace:\n   <TASK>\n   devl_health_reporter_destroy+0x3a/0x1b0\n   mlx5e_vport_rep_unload+0x12d/0x2b0 [mlx5_core]\n   mlx5_eswitch_unregister_vport_reps+0x1b8/0x220 [mlx5_core]\n   ? __esw_offloads_unload_rep+0x190/0x190 [mlx5_core]\n   ? kernfs_remove_by_name_ns+0xc3/0xf0\n   device_release_driver_internal+0x3b2/0x560\n   unbind_store+0xce/0xf0\n\nMove the reporter's lifecycle to the eswitch devlink port (un)register\npaths, which are already serialized by the devlink instance lock, and\nstore the handle on mlx5_devlink_port. Use the port's mlx5_vport as the\nreporter priv since the diagnose callback only needs a device handle and\na vport number, and mlx5_vport carries both and is initialized before\nany representor driver probes."
    }
  ],
  "lastModified": "2026-09-25T11:17:23.970",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}