{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-53110", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-05-02T15:51:43.554Z", "datePublished": "2025-05-02T15:55:50.367Z", "dateUpdated": "2026-05-11T19:38:42.277Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:38:42.277Z"}, "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->sndbuf_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->sndbuf_desc->len);\n\t\t\t\t\t\t/* panic dues to NULL sndbuf_desc */\n\nconn->sndbuf_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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/smc/smc_cdc.c"], "versions": [{"version": "0b29ec6436138721acf5844e558f7334a0fa61d5", "lessThan": "31817c530768b0199771ec6019571b4f0ddbf230", "status": "affected", "versionType": "git"}, {"version": "0b29ec6436138721acf5844e558f7334a0fa61d5", "lessThan": "b108bd9e6be000492ebebe867daa699285978a10", "status": "affected", "versionType": "git"}, {"version": "0b29ec6436138721acf5844e558f7334a0fa61d5", "lessThan": "3c270435db8aa34929263dddae8fd050f5216ecb", "status": "affected", "versionType": "git"}, {"version": "0b29ec6436138721acf5844e558f7334a0fa61d5", "lessThan": "3ebac7cf0a184a8102821a7a00203f02bebda83c", "status": "affected", "versionType": "git"}, {"version": "0b29ec6436138721acf5844e558f7334a0fa61d5", "lessThan": "22a825c541d775c1dbe7b2402786025acad6727b", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/smc/smc_cdc.c"], "versions": [{"version": "5.5", "status": "affected"}, {"version": "0", "lessThan": "5.5", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.176", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.104", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.21", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2.8", "lessThanOrEqual": "6.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.10.176"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.15.104"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.1.21"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.3"}]}]}], "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"}}}}

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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->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); /* p\u00e1nico debido a NULL sndbuf_desc */ conn->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."}], "id": "CVE-2023-53110", "lastModified": "2026-06-17T06:44:19.107", "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": "2025-05-02T16:15:29.930", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/22a825c541d775c1dbe7b2402786025acad6727b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/31817c530768b0199771ec6019571b4f0ddbf230"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3c270435db8aa34929263dddae8fd050f5216ecb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3ebac7cf0a184a8102821a7a00203f02bebda83c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b108bd9e6be000492ebebe867daa699285978a10"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler()", "id": "2363781", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363781"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler()\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.\nThis issue dues to the race between smc_smcr_terminate_all()\nand smc_buf_create().\nsmc_smcr_terminate_all\nsmc_buf_create\n/* init */\nconn->sndbuf_desc = NULL;\n...\n__smc_lgr_terminate\nsmc_conn_kill\nsmc_close_abort\nsmc_cdc_get_slot_and_msg_send\n__softirqentry_text_start\nsmc_wr_tx_process_cqe\nsmc_cdc_tx_handler\nREAD(conn->sndbuf_desc->len);\n/* panic dues to NULL sndbuf_desc */\nconn->sndbuf_desc = xxx;\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."], "name": "CVE-2023-53110", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-05-02T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53110\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53110\nhttps://lore.kernel.org/linux-cve-announce/2025050227-CVE-2023-53110-2b28@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-13T11:32:18.777202+00:00", "updated": "2025-07-13T11:32:18.777268+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}