CVE-2023-53110 (GCVE-0-2023-53110)
Vulnerability from cvelistv5
Published
2025-05-02 15:55
Modified
2025-05-04 07:50
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler() When performing a stress test on SMC-R by rmmod mlx5_ib driver during the wrk/nginx test, we found that there is a probability of triggering a panic while terminating all link groups. This issue dues to the race between smc_smcr_terminate_all() and smc_buf_create(). smc_smcr_terminate_all smc_buf_create /* init */ conn->sndbuf_desc = NULL; ... __smc_lgr_terminate smc_conn_kill smc_close_abort smc_cdc_get_slot_and_msg_send __softirqentry_text_start smc_wr_tx_process_cqe smc_cdc_tx_handler READ(conn->sndbuf_desc->len); /* panic dues to NULL sndbuf_desc */ conn->sndbuf_desc = xxx; This patch tries to fix the issue by always to check the sndbuf_desc before send any cdc msg, to make sure that no null pointer is seen during cqe processing.
References
Impacted products
Vendor Product Version
Linux Linux Version: 0b29ec6436138721acf5844e558f7334a0fa61d5
Version: 0b29ec6436138721acf5844e558f7334a0fa61d5
Version: 0b29ec6436138721acf5844e558f7334a0fa61d5
Version: 0b29ec6436138721acf5844e558f7334a0fa61d5
Version: 0b29ec6436138721acf5844e558f7334a0fa61d5
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/smc/smc_cdc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/smc/smc_cdc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.5"
            },
            {
              "lessThan": "5.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.176",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.104",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.21",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.176",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.104",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.1.21",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler()\n\nWhen performing a stress test on SMC-R by rmmod mlx5_ib driver\nduring the wrk/nginx test, we found that there is a probability\nof triggering a panic while terminating all link groups.\n\nThis issue dues to the race between smc_smcr_terminate_all()\nand smc_buf_create().\n\n\t\t\tsmc_smcr_terminate_all\n\nsmc_buf_create\n/* init */\nconn-\u003esndbuf_desc = NULL;\n...\n\n\t\t\t__smc_lgr_terminate\n\t\t\t\tsmc_conn_kill\n\t\t\t\t\tsmc_close_abort\n\t\t\t\t\t\tsmc_cdc_get_slot_and_msg_send\n\n\t\t\t__softirqentry_text_start\n\t\t\t\tsmc_wr_tx_process_cqe\n\t\t\t\t\tsmc_cdc_tx_handler\n\t\t\t\t\t\tREAD(conn-\u003esndbuf_desc-\u003elen);\n\t\t\t\t\t\t/* panic dues to NULL sndbuf_desc */\n\nconn-\u003esndbuf_desc = xxx;\n\nThis patch tries to fix the issue by always to check the sndbuf_desc\nbefore send any cdc msg, to make sure that no null pointer is\nseen during cqe processing."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:50:03.559Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/31817c530768b0199771ec6019571b4f0ddbf230"
        },
        {
          "url": "https://git.kernel.org/stable/c/b108bd9e6be000492ebebe867daa699285978a10"
        },
        {
          "url": "https://git.kernel.org/stable/c/3c270435db8aa34929263dddae8fd050f5216ecb"
        },
        {
          "url": "https://git.kernel.org/stable/c/3ebac7cf0a184a8102821a7a00203f02bebda83c"
        },
        {
          "url": "https://git.kernel.org/stable/c/22a825c541d775c1dbe7b2402786025acad6727b"
        }
      ],
      "title": "net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53110",
    "datePublished": "2025-05-02T15:55:50.367Z",
    "dateReserved": "2025-05-02T15:51:43.554Z",
    "dateUpdated": "2025-05-04T07:50:03.559Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53110\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-02T16:15:29.930\",\"lastModified\":\"2025-05-05T20:54:45.973\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler()\\n\\nWhen performing a stress test on SMC-R by rmmod mlx5_ib driver\\nduring the wrk/nginx test, we found that there is a probability\\nof triggering a panic while terminating all link groups.\\n\\nThis issue dues to the race between smc_smcr_terminate_all()\\nand smc_buf_create().\\n\\n\\t\\t\\tsmc_smcr_terminate_all\\n\\nsmc_buf_create\\n/* init */\\nconn-\u003esndbuf_desc = NULL;\\n...\\n\\n\\t\\t\\t__smc_lgr_terminate\\n\\t\\t\\t\\tsmc_conn_kill\\n\\t\\t\\t\\t\\tsmc_close_abort\\n\\t\\t\\t\\t\\t\\tsmc_cdc_get_slot_and_msg_send\\n\\n\\t\\t\\t__softirqentry_text_start\\n\\t\\t\\t\\tsmc_wr_tx_process_cqe\\n\\t\\t\\t\\t\\tsmc_cdc_tx_handler\\n\\t\\t\\t\\t\\t\\tREAD(conn-\u003esndbuf_desc-\u003elen);\\n\\t\\t\\t\\t\\t\\t/* panic dues to NULL sndbuf_desc */\\n\\nconn-\u003esndbuf_desc = xxx;\\n\\nThis patch tries to fix the issue by always to check the sndbuf_desc\\nbefore send any cdc msg, to make sure that no null pointer is\\nseen during cqe processing.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/smc: correcci\u00f3n de sndbuf_desc NULL en smc_cdc_tx_handler(). Al realizar una prueba de estr\u00e9s en SMC-R con el controlador rmmod mlx5_ib durante la prueba wrk/nginx, se observ\u00f3 la probabilidad de generar un p\u00e1nico al terminar todos los grupos de enlaces. Este problema se debe a la competencia entre smc_smcr_terminate_all() y smc_buf_create(). smc_smcr_terminate_all smc_buf_create /* init */ conn-\u0026gt;sndbuf_desc = NULL; ... __smc_lgr_terminate smc_conn_kill smc_close_abort smc_cdc_get_slot_and_msg_send __softirqentry_text_start smc_wr_tx_process_cqe smc_cdc_tx_handler READ(conn-\u0026gt;sndbuf_desc-\u0026gt;len); /* p\u00e1nico debido a NULL sndbuf_desc */ conn-\u0026gt;sndbuf_desc = xxx; Este parche intenta solucionar el problema verificando siempre sndbuf_desc antes de enviar cualquier mensaje de cdc, para asegurarse de que no se vea ning\u00fan puntero nulo durante el procesamiento de cqe.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/22a825c541d775c1dbe7b2402786025acad6727b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/31817c530768b0199771ec6019571b4f0ddbf230\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3c270435db8aa34929263dddae8fd050f5216ecb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3ebac7cf0a184a8102821a7a00203f02bebda83c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b108bd9e6be000492ebebe867daa699285978a10\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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