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GHSA-MGP7-42MX-57GJ

Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-18 18:32

Details

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

RDMA/siw: Fix duplicated reported IW_CM_EVENT_CONNECT_REPLY event

If siw_recv_mpa_rr returns -EAGAIN, it means that the MPA reply hasn't been received completely, and should not report IW_CM_EVENT_CONNECT_REPLY in this case. This may trigger a call trace in iw_cm. A simple way to trigger this: server: ib_send_lat client: ib_send_lat -R

The call trace looks like this:

kernel BUG at drivers/infiniband/core/iwcm.c:894! invalid opcode: 0000 [#1] PREEMPT SMP NOPTI <...> Workqueue: iw_cm_wq cm_work_handler [iw_cm] Call Trace: cm_work_handler+0x1dd/0x370 [iw_cm] process_one_work+0x1e2/0x3b0 worker_thread+0x49/0x2e0 ? rescuer_thread+0x370/0x370 kthread+0xe5/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50136"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:43Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/siw: Fix duplicated reported IW_CM_EVENT_CONNECT_REPLY event\n\nIf siw_recv_mpa_rr returns -EAGAIN, it means that the MPA reply hasn\u0027t\nbeen received completely, and should not report IW_CM_EVENT_CONNECT_REPLY\nin this case. This may trigger a call trace in iw_cm. A simple way to\ntrigger this:\n server: ib_send_lat\n client: ib_send_lat -R \u003cserver_ip\u003e\n\nThe call trace looks like this:\n\n kernel BUG at drivers/infiniband/core/iwcm.c:894!\n invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n \u003c...\u003e\n Workqueue: iw_cm_wq cm_work_handler [iw_cm]\n Call Trace:\n  \u003cTASK\u003e\n  cm_work_handler+0x1dd/0x370 [iw_cm]\n  process_one_work+0x1e2/0x3b0\n  worker_thread+0x49/0x2e0\n  ? rescuer_thread+0x370/0x370\n  kthread+0xe5/0x110\n  ? kthread_complete_and_exit+0x20/0x20\n  ret_from_fork+0x1f/0x30\n  \u003c/TASK\u003e",
  "id": "GHSA-mgp7-42mx-57gj",
  "modified": "2025-11-18T18:32:46Z",
  "published": "2025-06-18T12:30:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50136"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0066246d2d7e2619f3ecf3cf07333c59e6e7d84d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/11edf0bba15ea9df49478affec7974f351bb2f6e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1434de50a5d9dab91c8ce031bc23b3e2178379c5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3056fc6c32e613b760422b94c7617ac9a24a4721"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ade92ddaf2347fb34298c02080caaa3cdd7c27b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f6e26e1a5f600b760dc32135d3fac846eabe09e7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-50136 (GCVE-0-2022-50136)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:03 – Updated: 2026-08-05 08:57

Title

RDMA/siw: Fix duplicated reported IW_CM_EVENT_CONNECT_REPLY event

Summary

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix duplicated reported IW_CM_EVENT_CONNECT_REPLY event If siw_recv_mpa_rr returns -EAGAIN, it means that the MPA reply hasn't been received completely, and should not report IW_CM_EVENT_CONNECT_REPLY in this case. This may trigger a call trace in iw_cm. A simple way to trigger this: server: ib_send_lat client: ib_send_lat -R <server_ip> The call trace looks like this: kernel BUG at drivers/infiniband/core/iwcm.c:894! invalid opcode: 0000 [#1] PREEMPT SMP NOPTI <...> Workqueue: iw_cm_wq cm_work_handler [iw_cm] Call Trace: <TASK> cm_work_handler+0x1dd/0x370 [iw_cm] process_one_work+0x1e2/0x3b0 worker_thread+0x49/0x2e0 ? rescuer_thread+0x370/0x370 kthread+0xe5/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30 </TASK>

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Assigner

Linux mitre root Scorecard

References

6 references

URL	Tags
https://git.kernel.org/stable/c/11edf0bba15ea9df4…
https://git.kernel.org/stable/c/9ade92ddaf2347fb3…
https://git.kernel.org/stable/c/f6e26e1a5f600b760…
https://git.kernel.org/stable/c/0066246d2d7e2619f…
https://git.kernel.org/stable/c/1434de50a5d9dab91…
https://git.kernel.org/stable/c/3056fc6c32e613b76…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 6c52fdc244b5ccc468006fd65a504d4ee33743c7 , < 11edf0bba15ea9df49478affec7974f351bb2f6e (git) Affected: 6c52fdc244b5ccc468006fd65a504d4ee33743c7 , < 9ade92ddaf2347fb34298c02080caaa3cdd7c27b (git) Affected: 6c52fdc244b5ccc468006fd65a504d4ee33743c7 , < f6e26e1a5f600b760dc32135d3fac846eabe09e7 (git) Affected: 6c52fdc244b5ccc468006fd65a504d4ee33743c7 , < 0066246d2d7e2619f3ecf3cf07333c59e6e7d84d (git) Affected: 6c52fdc244b5ccc468006fd65a504d4ee33743c7 , < 1434de50a5d9dab91c8ce031bc23b3e2178379c5 (git) Affected: 6c52fdc244b5ccc468006fd65a504d4ee33743c7 , < 3056fc6c32e613b760422b94c7617ac9a24a4721 (git)
Linux	Linux	Affected: 5.3 Unaffected: 0 , < 5.3 (semver) Unaffected: 5.4.211 , ≤ 5.4.* (semver) Unaffected: 5.10.137 , ≤ 5.10.* (semver) Unaffected: 5.15.61 , ≤ 5.15.* (semver) Unaffected: 5.18.18 , ≤ 5.18.* (semver) Unaffected: 5.19.2 , ≤ 5.19.* (semver) Unaffected: 6.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/sw/siw/siw_cm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "11edf0bba15ea9df49478affec7974f351bb2f6e",
              "status": "affected",
              "version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7",
              "versionType": "git"
            },
            {
              "lessThan": "9ade92ddaf2347fb34298c02080caaa3cdd7c27b",
              "status": "affected",
              "version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7",
              "versionType": "git"
            },
            {
              "lessThan": "f6e26e1a5f600b760dc32135d3fac846eabe09e7",
              "status": "affected",
              "version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7",
              "versionType": "git"
            },
            {
              "lessThan": "0066246d2d7e2619f3ecf3cf07333c59e6e7d84d",
              "status": "affected",
              "version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7",
              "versionType": "git"
            },
            {
              "lessThan": "1434de50a5d9dab91c8ce031bc23b3e2178379c5",
              "status": "affected",
              "version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7",
              "versionType": "git"
            },
            {
              "lessThan": "3056fc6c32e613b760422b94c7617ac9a24a4721",
              "status": "affected",
              "version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/sw/siw/siw_cm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "lessThan": "5.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.211",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.137",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.61",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.18",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.211",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.137",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.61",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18.18",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.2",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/siw: Fix duplicated reported IW_CM_EVENT_CONNECT_REPLY event\n\nIf siw_recv_mpa_rr returns -EAGAIN, it means that the MPA reply hasn\u0027t\nbeen received completely, and should not report IW_CM_EVENT_CONNECT_REPLY\nin this case. This may trigger a call trace in iw_cm. A simple way to\ntrigger this:\n server: ib_send_lat\n client: ib_send_lat -R \u003cserver_ip\u003e\n\nThe call trace looks like this:\n\n kernel BUG at drivers/infiniband/core/iwcm.c:894!\n invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n \u003c...\u003e\n Workqueue: iw_cm_wq cm_work_handler [iw_cm]\n Call Trace:\n  \u003cTASK\u003e\n  cm_work_handler+0x1dd/0x370 [iw_cm]\n  process_one_work+0x1e2/0x3b0\n  worker_thread+0x49/0x2e0\n  ? rescuer_thread+0x370/0x370\n  kthread+0xe5/0x110\n  ? kthread_complete_and_exit+0x20/0x20\n  ret_from_fork+0x1f/0x30\n  \u003c/TASK\u003e"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The bug is triggered while processing an MPA CONNECT reply received over TCP from the remote iWARP peer on the active/client side of Soft-iWARP; a remote responder can deliver a partial then complete MPA reply to reach the vulnerable path.\nAC:L - A peer fully controls TCP segmentation of the MPA reply and can reliably force siw_recv_mpa_rr() to return -EAGAIN then complete; the fix commit also documents a simple, reliable local repro with ib_send_lat.\nPR:N - The attacking peer needs no privileges on the victim host; once a victim SIW client connects to the attacker, the malformed/fragmented MPA reply alone drives the duplicate CONNECT_REPLY upcall.\nUI:N - No additional user action is required beyond the RDMA connection attempt itself; automated or configured SIW clients connecting to a peer are sufficient to expose the path.\nS:U - The impact is a kernel BUG/oops in iw_cm on the same host that runs the SIW client; it does not cross a VM, IOMMU, or other security authority boundary.\nC:N - The failure is a state-machine BUG_ON on a duplicate IW_CM_EVENT_CONNECT_REPLY, not memory corruption or an information leak.\nI:N - There is no write primitive or corruptible object\u2014only an erroneous duplicate CM event that trips an assertion\u2014so integrity is not affected.\nA:H - The duplicate CONNECT_REPLY hits BUG_ON(cm_id_priv-\u003estate != IW_CM_STATE_CONN_SENT) in cm_conn_rep_handler, causing a kernel oops/panic and full denial of service."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:57:30.552Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/11edf0bba15ea9df49478affec7974f351bb2f6e"
        },
        {
          "url": "https://git.kernel.org/stable/c/9ade92ddaf2347fb34298c02080caaa3cdd7c27b"
        },
        {
          "url": "https://git.kernel.org/stable/c/f6e26e1a5f600b760dc32135d3fac846eabe09e7"
        },
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          "url": "https://git.kernel.org/stable/c/0066246d2d7e2619f3ecf3cf07333c59e6e7d84d"
        },
        {
          "url": "https://git.kernel.org/stable/c/1434de50a5d9dab91c8ce031bc23b3e2178379c5"
        },
        {
          "url": "https://git.kernel.org/stable/c/3056fc6c32e613b760422b94c7617ac9a24a4721"
        }
      ],
      "title": "RDMA/siw: Fix duplicated reported IW_CM_EVENT_CONNECT_REPLY event",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50136",
    "datePublished": "2025-06-18T11:03:00.289Z",
    "dateReserved": "2025-06-18T10:57:27.422Z",
    "dateUpdated": "2026-08-05T08:57:30.552Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-MGP7-42MX-57GJ

CVE-2022-50136 (GCVE-0-2022-50136)

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