CVE-2025-39832 (GCVE-0-2025-39832)

Vulnerability from cvelistv5 – Published: 2025-09-16 13:08 – Updated: 2026-05-11 21:37
VLAI
Title
net/mlx5: Fix lockdep assertion on sync reset unload event
Summary
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix lockdep assertion on sync reset unload event Fix lockdep assertion triggered during sync reset unload event. When the sync reset flow is initiated using the devlink reload fw_activate option, the PF already holds the devlink lock while handling unload event. In this case, delegate sync reset unload event handling back to the devlink callback process to avoid double-locking and resolve the lockdep warning. Kernel log: WARNING: CPU: 9 PID: 1578 at devl_assert_locked+0x31/0x40 [...] Call Trace: <TASK> mlx5_unload_one_devl_locked+0x2c/0xc0 [mlx5_core] mlx5_sync_reset_unload_event+0xaf/0x2f0 [mlx5_core] process_one_work+0x222/0x640 worker_thread+0x199/0x350 kthread+0x10b/0x230 ? __pfx_worker_thread+0x10/0x10 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x8e/0x100 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK>
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:18 UTC
CWE
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7061 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 7a9770f1bfeaeddf5afabd3244e2c4c4966be37d , < ddac9d0fe2493dd550cbfc75eeaf31e9b6dac959 (git)
Affected: 7a9770f1bfeaeddf5afabd3244e2c4c4966be37d , < 0c87dba9ccd3801d3b503f0b4fd41be343af4f06 (git)
Affected: 7a9770f1bfeaeddf5afabd3244e2c4c4966be37d , < 06d897148e79638651800d851a69547b56b4be2e (git)
Affected: 7a9770f1bfeaeddf5afabd3244e2c4c4966be37d , < 902a8bc23a24882200f57cadc270e15a2cfaf2bb (git)
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Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.6.104 , ≤ 6.6.* (semver)
Unaffected: 6.12.45 , ≤ 6.12.* (semver)
Unaffected: 6.16.5 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ddac9d0fe2493dd550cbfc75eeaf31e9b6dac959"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-667"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-667"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T01:21:04+00:00",
      "cve": "CVE-2025-39832",
      "id": "CVE-2025-39832",
      "initial_release_date": "2025-09-16T00:00:00+00:00",
      "product_status:known_affected": "198",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net/mlx5: Fix lockdep assertion on sync reset unload event",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-39832.json",
      "version": "3"
    }
  }
}



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