CVE-2022-50136

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-50136", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-06-18T10:57:27.422Z", "datePublished": "2025-06-18T11:03:00.289Z", "dateUpdated": "2026-08-05T08:57:30.552Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:57:30.552Z"}, "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't\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 <server_ip>\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 <...>\n Workqueue: iw_cm_wq cm_work_handler [iw_cm]\n Call Trace:\n <TASK>\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 </TASK>"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}, "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->state != IW_CM_STATE_CONN_SENT) in cm_conn_rep_handler, causing a kernel oops/panic and full denial of service."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/sw/siw/siw_cm.c"], "versions": [{"version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7", "lessThan": "11edf0bba15ea9df49478affec7974f351bb2f6e", "status": "affected", "versionType": "git"}, {"version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7", "lessThan": "9ade92ddaf2347fb34298c02080caaa3cdd7c27b", "status": "affected", "versionType": "git"}, {"version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7", "lessThan": "f6e26e1a5f600b760dc32135d3fac846eabe09e7", "status": "affected", "versionType": "git"}, {"version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7", "lessThan": "0066246d2d7e2619f3ecf3cf07333c59e6e7d84d", "status": "affected", "versionType": "git"}, {"version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7", "lessThan": "1434de50a5d9dab91c8ce031bc23b3e2178379c5", "status": "affected", "versionType": "git"}, {"version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7", "lessThan": "3056fc6c32e613b760422b94c7617ac9a24a4721", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/sw/siw/siw_cm.c"], "versions": [{"version": "5.3", "status": "affected"}, {"version": "0", "lessThan": "5.3", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.211", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.137", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.61", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.18", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19.2", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0", "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": "5.3", "versionEndExcluding": "5.4.211"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.10.137"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.15.61"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.18.18"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.19.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.0"}]}]}], "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"}, {"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"}}}}

{}

{"affected": [{"affectedData": [{"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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "DABFD37F-7E0C-41E0-9811-29A4EF9C11FB", "versionEndExcluding": "5.4.211", "versionStartIncluding": "5.3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C2BF720F-C5EE-4DE2-9BDF-CE4CFBC767F4", "versionEndExcluding": "5.10.137", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "51861563-7F40-460F-82CD-2D3FBDAD6618", "versionEndExcluding": "5.15.61", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5B42E453-8837-49D0-A5EF-03F818A6DC11", "versionEndExcluding": "5.18.18", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A1A2A5A5-4598-4D7E-BA07-4660398D6C8F", "versionEndExcluding": "5.19.2", "versionStartIncluding": "5.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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't\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 <server_ip>\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 <...>\n Workqueue: iw_cm_wq cm_work_handler [iw_cm]\n Call Trace:\n <TASK>\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 </TASK>"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/siw: Se corrige el evento IW_CM_EVENT_CONNECT_REPLY reportado duplicado. Si siw_recv_mpa_rr devuelve -EAGAIN, significa que la respuesta de MPA no se ha recibido completamente y, en este caso, no deber\u00eda reportar IW_CM_EVENT_CONNECT_REPLY. Esto podr\u00eda activar un seguimiento de llamadas en iw_cm. Una forma sencilla de activarlo: servidor: ib_send_lat cliente: ib_send_lat -R . El seguimiento de llamadas se ve as\u00ed: kernel BUG en drivers/infiniband/core/iwcm.c:894! C\u00f3digo de operaci\u00f3n no v\u00e1lido: 0000 [#1] PREEMPT SMP NOPTI &lt;...&gt; Cola de trabajo: iw_cm_wq cm_work_handler [iw_cm] Rastreo de llamadas: 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 "}], "id": "CVE-2022-50136", "lastModified": "2026-08-04T10:18:05.770", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"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": "2025-06-18T11:15:43.493", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0066246d2d7e2619f3ecf3cf07333c59e6e7d84d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/11edf0bba15ea9df49478affec7974f351bb2f6e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1434de50a5d9dab91c8ce031bc23b3e2178379c5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3056fc6c32e613b760422b94c7617ac9a24a4721"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9ade92ddaf2347fb34298c02080caaa3cdd7c27b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f6e26e1a5f600b760dc32135d3fac846eabe09e7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: RDMA/siw: Fix duplicated reported IW_CM_EVENT_CONNECT_REPLY event", "id": "2373548", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373548"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nRDMA/siw: Fix duplicated reported IW_CM_EVENT_CONNECT_REPLY event\nIf siw_recv_mpa_rr returns -EAGAIN, it means that the MPA reply hasn't\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:\nserver: ib_send_lat\nclient: ib_send_lat -R <server_ip>\nThe call trace looks like this:\nkernel BUG at drivers/infiniband/core/iwcm.c:894!\ninvalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n<...>\nWorkqueue: iw_cm_wq cm_work_handler [iw_cm]\nCall Trace:\n<TASK>\ncm_work_handler+0x1dd/0x370 [iw_cm]\nprocess_one_work+0x1e2/0x3b0\nworker_thread+0x49/0x2e0\n? rescuer_thread+0x370/0x370\nkthread+0xe5/0x110\n? kthread_complete_and_exit+0x20/0x20\nret_from_fork+0x1f/0x30\n</TASK>"], "name": "CVE-2022-50136", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-06-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50136\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50136\nhttps://lore.kernel.org/linux-cve-announce/2025061816-CVE-2022-50136-f85e@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-06-23T08:17:27.010092+00:00", "updated": "2025-06-23T08:17:27.010139+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}