CVE-2025-38186 (GCVE-0-2025-38186)

Vulnerability from cvelistv5 – Published: 2025-07-04 13:37 – Updated: 2026-05-11 21:22
VLAI
Title
bnxt_en: Fix double invocation of bnxt_ulp_stop()/bnxt_ulp_start()
Summary
In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Fix double invocation of bnxt_ulp_stop()/bnxt_ulp_start() Before the commit under the Fixes tag below, bnxt_ulp_stop() and bnxt_ulp_start() were always invoked in pairs. After that commit, the new bnxt_ulp_restart() can be invoked after bnxt_ulp_stop() has been called. This may result in the RoCE driver's aux driver .suspend() method being invoked twice. The 2nd bnxt_re_suspend() call will crash when it dereferences a NULL pointer: (NULL ib_device): Handle device suspend call BUG: kernel NULL pointer dereference, address: 0000000000000b78 PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP PTI CPU: 20 UID: 0 PID: 181 Comm: kworker/u96:5 Tainted: G S 6.15.0-rc1 #4 PREEMPT(voluntary) Tainted: [S]=CPU_OUT_OF_SPEC Hardware name: Dell Inc. PowerEdge R730/072T6D, BIOS 2.4.3 01/17/2017 Workqueue: bnxt_pf_wq bnxt_sp_task [bnxt_en] RIP: 0010:bnxt_re_suspend+0x45/0x1f0 [bnxt_re] Code: 8b 05 a7 3c 5b f5 48 89 44 24 18 31 c0 49 8b 5c 24 08 4d 8b 2c 24 e8 ea 06 0a f4 48 c7 c6 04 60 52 c0 48 89 df e8 1b ce f9 ff <48> 8b 83 78 0b 00 00 48 8b 80 38 03 00 00 a8 40 0f 85 b5 00 00 00 RSP: 0018:ffffa2e84084fd88 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffffb4b6b934 RDI: 00000000ffffffff RBP: ffffa1760954c9c0 R08: 0000000000000000 R09: c0000000ffffdfff R10: 0000000000000001 R11: ffffa2e84084fb50 R12: ffffa176031ef070 R13: ffffa17609775000 R14: ffffa17603adc180 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffffa17daa397000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000b78 CR3: 00000004aaa30003 CR4: 00000000003706f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> bnxt_ulp_stop+0x69/0x90 [bnxt_en] bnxt_sp_task+0x678/0x920 [bnxt_en] ? __schedule+0x514/0xf50 process_scheduled_works+0x9d/0x400 worker_thread+0x11c/0x260 ? __pfx_worker_thread+0x10/0x10 kthread+0xfe/0x1e0 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2b/0x40 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 Check the BNXT_EN_FLAG_ULP_STOPPED flag and do not proceed if the flag is already set. This will preserve the original symmetrical bnxt_ulp_stop() and bnxt_ulp_start(). Also, inside bnxt_ulp_start(), clear the BNXT_EN_FLAG_ULP_STOPPED flag after taking the mutex to avoid any race condition. And for symmetry, only proceed in bnxt_ulp_start() if the BNXT_EN_FLAG_ULP_STOPPED is set.
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: 3c163f35bd50314d4e70ed9e83e1d8d83c473325 , < 6f2cd309492924b8afd2c62aebff815c1119d124 (git)
Affected: 3c163f35bd50314d4e70ed9e83e1d8d83c473325 , < cca4ffd4a5b768752b91f6f75d77928e47886913 (git)
Affected: 3c163f35bd50314d4e70ed9e83e1d8d83c473325 , < 1e9ac33fa271be0d2480fd732f9642d81542500b (git)
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Linux Linux Affected: 6.10
Unaffected: 0 , < 6.10 (semver)
Unaffected: 6.12.35 , ≤ 6.12.* (semver)
Unaffected: 6.15.4 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Fix double invocation of bnxt_ulp_stop()/bnxt_ulp_start()\n\nBefore the commit under the Fixes tag below, bnxt_ulp_stop() and\nbnxt_ulp_start() were always invoked in pairs.  After that commit,\nthe new bnxt_ulp_restart() can be invoked after bnxt_ulp_stop()\nhas been called.  This may result in the RoCE driver\u0027s aux driver\n.suspend() method being invoked twice.  The 2nd bnxt_re_suspend()\ncall will crash when it dereferences a NULL pointer:\n\n(NULL ib_device): Handle device suspend call\nBUG: kernel NULL pointer dereference, address: 0000000000000b78\nPGD 0 P4D 0\nOops: Oops: 0000 [#1] SMP PTI\nCPU: 20 UID: 0 PID: 181 Comm: kworker/u96:5 Tainted: G S                  6.15.0-rc1 #4 PREEMPT(voluntary)\nTainted: [S]=CPU_OUT_OF_SPEC\nHardware name: Dell Inc. PowerEdge R730/072T6D, BIOS 2.4.3 01/17/2017\nWorkqueue: bnxt_pf_wq bnxt_sp_task [bnxt_en]\nRIP: 0010:bnxt_re_suspend+0x45/0x1f0 [bnxt_re]\nCode: 8b 05 a7 3c 5b f5 48 89 44 24 18 31 c0 49 8b 5c 24 08 4d 8b 2c 24 e8 ea 06 0a f4 48 c7 c6 04 60 52 c0 48 89 df e8 1b ce f9 ff \u003c48\u003e 8b 83 78 0b 00 00 48 8b 80 38 03 00 00 a8 40 0f 85 b5 00 00 00\nRSP: 0018:ffffa2e84084fd88 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001\nRDX: 0000000000000000 RSI: ffffffffb4b6b934 RDI: 00000000ffffffff\nRBP: ffffa1760954c9c0 R08: 0000000000000000 R09: c0000000ffffdfff\nR10: 0000000000000001 R11: ffffa2e84084fb50 R12: ffffa176031ef070\nR13: ffffa17609775000 R14: ffffa17603adc180 R15: 0000000000000000\nFS:  0000000000000000(0000) GS:ffffa17daa397000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000b78 CR3: 00000004aaa30003 CR4: 00000000003706f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n\u003cTASK\u003e\nbnxt_ulp_stop+0x69/0x90 [bnxt_en]\nbnxt_sp_task+0x678/0x920 [bnxt_en]\n? __schedule+0x514/0xf50\nprocess_scheduled_works+0x9d/0x400\nworker_thread+0x11c/0x260\n? __pfx_worker_thread+0x10/0x10\nkthread+0xfe/0x1e0\n? __pfx_kthread+0x10/0x10\nret_from_fork+0x2b/0x40\n? __pfx_kthread+0x10/0x10\nret_from_fork_asm+0x1a/0x30\n\nCheck the BNXT_EN_FLAG_ULP_STOPPED flag and do not proceed if the flag\nis already set.  This will preserve the original symmetrical\nbnxt_ulp_stop() and bnxt_ulp_start().\n\nAlso, inside bnxt_ulp_start(), clear the BNXT_EN_FLAG_ULP_STOPPED\nflag after taking the mutex to avoid any race condition.  And for\nsymmetry, only proceed in bnxt_ulp_start() if the\nBNXT_EN_FLAG_ULP_STOPPED is set."
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            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Fix double invocation of bnxt_ulp_stop()/bnxt_ulp_start()\n\nBefore the commit under the Fixes tag below, bnxt_ulp_stop() and\nbnxt_ulp_start() were always invoked in pairs.  After that commit,\nthe new bnxt_ulp_restart() can be invoked after bnxt_ulp_stop()\nhas been called.  This may result in the RoCE driver\u0027s aux driver\n.suspend() method being invoked twice.  The 2nd bnxt_re_suspend()\ncall will crash when it dereferences a NULL pointer:\n\n(NULL ib_device): Handle device suspend call\nBUG: kernel NULL pointer dereference, address: 0000000000000b78\nPGD 0 P4D 0\nOops: Oops: 0000 [#1] SMP PTI\nCPU: 20 UID: 0 PID: 181 Comm: kworker/u96:5 Tainted: G S                  6.15.0-rc1 #4 PREEMPT(voluntary)\nTainted: [S]=CPU_OUT_OF_SPEC\nHardware name: Dell Inc. PowerEdge R730/072T6D, BIOS 2.4.3 01/17/2017\nWorkqueue: bnxt_pf_wq bnxt_sp_task [bnxt_en]\nRIP: 0010:bnxt_re_suspend+0x45/0x1f0 [bnxt_re]\nCode: 8b 05 a7 3c 5b f5 48 89 44 24 18 31 c0 49 8b 5c 24 08 4d 8b 2c 24 e8 ea 06 0a f4 48 c7 c6 04 60 52 c0 48 89 df e8 1b ce f9 ff \u003c48\u003e 8b 83 78 0b 00 00 48 8b 80 38 03 00 00 a8 40 0f 85 b5 00 00 00\nRSP: 0018:ffffa2e84084fd88 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001\nRDX: 0000000000000000 RSI: ffffffffb4b6b934 RDI: 00000000ffffffff\nRBP: ffffa1760954c9c0 R08: 0000000000000000 R09: c0000000ffffdfff\nR10: 0000000000000001 R11: ffffa2e84084fb50 R12: ffffa176031ef070\nR13: ffffa17609775000 R14: ffffa17603adc180 R15: 0000000000000000\nFS:  0000000000000000(0000) GS:ffffa17daa397000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000b78 CR3: 00000004aaa30003 CR4: 00000000003706f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n\u003cTASK\u003e\nbnxt_ulp_stop+0x69/0x90 [bnxt_en]\nbnxt_sp_task+0x678/0x920 [bnxt_en]\n? __schedule+0x514/0xf50\nprocess_scheduled_works+0x9d/0x400\nworker_thread+0x11c/0x260\n? __pfx_worker_thread+0x10/0x10\nkthread+0xfe/0x1e0\n? __pfx_kthread+0x10/0x10\nret_from_fork+0x2b/0x40\n? __pfx_kthread+0x10/0x10\nret_from_fork_asm+0x1a/0x30\n\nCheck the BNXT_EN_FLAG_ULP_STOPPED flag and do not proceed if the flag\nis already set.  This will preserve the original symmetrical\nbnxt_ulp_stop() and bnxt_ulp_start().\n\nAlso, inside bnxt_ulp_start(), clear the BNXT_EN_FLAG_ULP_STOPPED\nflag after taking the mutex to avoid any race condition.  And for\nsymmetry, only proceed in bnxt_ulp_start() if the\nBNXT_EN_FLAG_ULP_STOPPED is set."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bnxt_en: Se corrige la doble invocaci\u00f3n de bnxt_ulp_stop()/bnxt_ulp_start(). Antes de la confirmaci\u00f3n bajo la etiqueta \"Correcciones\", bnxt_ulp_stop() y bnxt_ulp_start() siempre se invocaban en pares. Tras dicha confirmaci\u00f3n, se puede invocar el nuevo bnxt_ulp_restart() tras llamar a bnxt_ulp_stop(). Esto puede provocar que el m\u00e9todo .suspend() del controlador auxiliar del controlador RoCE se invoque dos veces. La segunda llamada bnxt_re_suspend() se bloquear\u00e1 cuando desreferencia un puntero NULL: (NULL ib_device): Manejar llamada de suspensi\u00f3n del dispositivo ERROR: kernel NULL pointer dereference, address: 0000000000000b78 PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP PTI CPU: 20 UID: 0 PID: 181 Comm: kworker/u96:5 Tainted: G S 6.15.0-rc1 #4 PREEMPT(voluntary) Tainted: [S]=CPU_OUT_OF_SPEC Hardware name: Dell Inc. PowerEdge R730/072T6D, BIOS 2.4.3 01/17/2017 Workqueue: bnxt_pf_wq bnxt_sp_task [bnxt_en] RIP: 0010:bnxt_re_suspend+0x45/0x1f0 [bnxt_re] Code: 8b 05 a7 3c 5b f5 48 89 44 24 18 31 c0 49 8b 5c 24 08 4d 8b 2c 24 e8 ea 06 0a f4 48 c7 c6 04 60 52 c0 48 89 df e8 1b ce f9 ff \u0026lt;48\u0026gt; 8b 83 78 0b 00 00 48 8b 80 38 03 00 00 a8 40 0f 85 b5 00 00 00 RSP: 0018:ffffa2e84084fd88 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffffb4b6b934 RDI: 00000000ffffffff RBP: ffffa1760954c9c0 R08: 0000000000000000 R09: c0000000ffffdfff R10: 0000000000000001 R11: ffffa2e84084fb50 R12: ffffa176031ef070 R13: ffffa17609775000 R14: ffffa17603adc180 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffffa17daa397000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000b78 CR3: 00000004aaa30003 CR4: 00000000003706f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace:  bnxt_ulp_stop+0x69/0x90 [bnxt_en] bnxt_sp_task+0x678/0x920 [bnxt_en] ? __schedule+0x514/0xf50 process_scheduled_works+0x9d/0x400 worker_thread+0x11c/0x260 ? __pfx_worker_thread+0x10/0x10 kthread+0xfe/0x1e0 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2b/0x40 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 Compruebe el indicador BNXT_EN_FLAG_ULP_STOPPED y no contin\u00fae si ya est\u00e1 activado. Esto conservar\u00e1 las operaciones sim\u00e9tricas originales bnxt_ulp_stop() y bnxt_ulp_start(). Adem\u00e1s, dentro de bnxt_ulp_start(), borre el indicador BNXT_EN_FLAG_ULP_STOPPED despu\u00e9s de tomar el mutex para evitar cualquier condici\u00f3n de ejecuci\u00f3n. Y para la simetr\u00eda, solo proceda en bnxt_ulp_start() si BNXT_EN_FLAG_ULP_STOPPED est\u00e1 configurado."
          }
        ],
        "id": "CVE-2025-38186",
        "lastModified": "2026-06-17T09:16:20.863",
        "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": "2025-07-04T14:15:25.520",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/1e9ac33fa271be0d2480fd732f9642d81542500b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/6f2cd309492924b8afd2c62aebff815c1119d124"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/cca4ffd4a5b768752b91f6f75d77928e47886913"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-415"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T00:55:43+00:00",
      "cve": "CVE-2025-38186",
      "id": "CVE-2025-38186",
      "initial_release_date": "2025-07-04T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bnxt_en: Fix double invocation of bnxt_ulp_stop()/bnxt_ulp_start()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38186.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-23T00:40:46Z",
      "cve": "CVE-2025-38186",
      "id": "CVE-2025-38186",
      "initial_release_date": "2025-07-04T23:22:15Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "394",
      "product_status:known_not_affected": "481",
      "product_status:recommended": "247",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-38186",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-38186.json",
      "version": "37"
    }
  }
}



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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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.