CVE-2024-42285

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Make\nsure that cm_work_handler() does not trigger a use-after-free by only\nfreeing of the struct rdma_id_private after all pending work has finished."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL"}, "scenarios": [{"lang": "en", "value": "AV:N - The iWARP CM state machine exists exclusively to process connection-management events (CONNECT_REQUEST/REPLY, ESTABLISHED, DISCONNECT, CLOSE) originated by remote peers over MPA/TCP, and the freed-object dereference occurs inside `cm_work_handler()`/`cma_iw_handler()` while handling such a remote event. Network-facing RDMA targets over iWARP (nvmet-rdma, NFS/RDMA svcrdma, iSER, SMB Direct, on cxgb4/irdma/qedr or software siw) drive both the event delivery and the `rdma_destroy_id()` teardown from remote peer actions.\nAC:L - The attacker controls both sides of the race: the connect/abort lifecycle of their own connection generates the queued CM events, and forcing a connection rejection or resetting the TCP connection drives the concurrent `rdma_destroy_id()`. The sequence can be repeated in a tight loop across many concurrent connections until the window is hit, with no condition outside attacker influence.\nPR:N - The RDMA-CM/iWARP handshake and the entire connect-reject-disconnect cycle complete before any upper-layer authentication (NVMe-oF Connect/in-band auth, RPCSEC, SMB session setup), so an unauthenticated peer that can reach the target port suffices. The local variant is even weaker-gated: rdma_ucm's `/dev/infiniband/rdma_cm` handlers contain no capability checks at all.\nUI:N - Exploitation is entirely driven by the attacker's own connection attempts and teardowns against an already-listening RDMA service. No action by any local user or administrator is required.\nS:U - The use-after-free corrupts kernel heap memory and hijacks kernel control flow within the same security authority as the vulnerable component. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - After the free, `cma_iw_handler()` reads `id_priv->state`, `id_priv->cm_id`, and other fields from the reallocated slab object, and the resulting control-flow hijack via the stale `event_handler` pointer can be leveraged for arbitrary kernel memory disclosure. Per kernel guidance a use-after-free is scored High for confidentiality.\nI:H - `cma_cm_event_handler()` performs an indirect call through `id_priv->id.event_handler` read from the freed object, and `mutex_lock(&id_priv->handler_mutex)` writes into it \u2014 together giving heap-spray-based arbitrary write and code-execution potential. This is a full control-flow hijack primitive, not a bounded corruption.\nA:H - Even without successful grooming, dereferencing the freed `rdma_id_private` (mutex operations and an indirect call on garbage) reliably oopses or panics the kernel, as observed by KASAN slab-use-after-free reports during blktests. The trigger is repeatable, so a remote attacker can crash the target at will."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/core/iwcm.c"], "versions": [{"version": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4", "lessThan": "d91d253c87fd1efece521ff2612078a35af673c6", "status": "affected", "versionType": "git"}, {"version": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4", "lessThan": "7f25f296fc9bd0435be14e89bf657cd615a23574", "status": "affected", "versionType": "git"}, {"version": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4", "lessThan": "94ee7ff99b87435ec63211f632918dc7f44dac79", "status": "affected", "versionType": "git"}, {"version": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4", "lessThan": "557d035fe88d78dd51664f4dc0e1896c04c97cf6", "status": "affected", "versionType": "git"}, {"version": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4", "lessThan": "dc8074b8901caabb97c2d353abd6b4e7fa5a59a5", "status": "affected", "versionType": "git"}, {"version": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4", "lessThan": "ff5bbbdee08287d75d72e65b72a2b76d9637892a", "status": "affected", "versionType": "git"}, {"version": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4", "lessThan": "ee39384ee787e86e9db4efb843818ef0ea9cb8ae", "status": "affected", "versionType": "git"}, {"version": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4", "lessThan": "aee2424246f9f1dadc33faa78990c1e2eb7826e4", "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/core/iwcm.c"], "versions": [{"version": "4.8", "status": "affected"}, {"version": "0", "lessThan": "4.8", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.320", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.282", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.224", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.165", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.103", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.44", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.3", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11", "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": "4.8", "versionEndExcluding": "4.19.320"}, {"vulnerable": true, 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"versionEndExcluding": "6.11"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d91d253c87fd1efece521ff2612078a35af673c6"}, {"url": "https://git.kernel.org/stable/c/7f25f296fc9bd0435be14e89bf657cd615a23574"}, {"url": "https://git.kernel.org/stable/c/94ee7ff99b87435ec63211f632918dc7f44dac79"}, {"url": "https://git.kernel.org/stable/c/557d035fe88d78dd51664f4dc0e1896c04c97cf6"}, {"url": "https://git.kernel.org/stable/c/dc8074b8901caabb97c2d353abd6b4e7fa5a59a5"}, {"url": "https://git.kernel.org/stable/c/ff5bbbdee08287d75d72e65b72a2b76d9637892a"}, {"url": "https://git.kernel.org/stable/c/ee39384ee787e86e9db4efb843818ef0ea9cb8ae"}, {"url": "https://git.kernel.org/stable/c/aee2424246f9f1dadc33faa78990c1e2eb7826e4"}], "title": "RDMA/iwcm: Fix a use-after-free related to destroying CM IDs", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-42285", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:11:23.465400Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-12T17:33:30.490Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:03:32.078Z"}}]}}

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Make\nsure that cm_work_handler() does not trigger a use-after-free by only\nfreeing of the struct rdma_id_private after all pending work has finished."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.19.320", "versionStartIncluding": "4.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.282", "versionStartIncluding": "4.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.224", "versionStartIncluding": "4.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.165", "versionStartIncluding": "4.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.103", "versionStartIncluding": "4.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.44", "versionStartIncluding": "4.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.10.3", "versionStartIncluding": "4.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11", "versionStartIncluding": "4.8"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T09:25:57.010Z"}}}, "cveMetadata": {"cveId": "CVE-2024-42285", "state": "PUBLISHED", "dateUpdated": "2025-11-03T22:03:32.078Z", "dateReserved": "2024-07-30T07:40:12.262Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-08-17T09:08:51.302Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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Make\nsure that cm_work_handler() does not trigger a use-after-free by only\nfreeing of the struct rdma_id_private after all pending work has finished."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: RDMA/iwcm: corrige un use-after-free relacionado con la destrucci\u00f3n de ID de CM iw_conn_req_handler() asocia una nueva estructura rdma_id_private (conn_id) con una estructura iw_cm_id (cm_id) existente de la siguiente manera: conn_id->cm_id.iw = cm_id; cm_id->context = conn_id; cm_id->cm_handler = cma_iw_handler; rdma_destroy_id() libera tanto cm_id como struct rdma_id_private. Aseg\u00farese de que cm_work_handler() no active un use-after-free liberando solo la estructura rdma_id_private despu\u00e9s de que todo el trabajo pendiente haya finalizado."}], "id": "CVE-2024-42285", "lastModified": "2026-08-04T11:19:46.570", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-42285", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T16:11:23.465400Z", "version": "2.0.3"}}]}, "published": "2024-08-17T09:15:09.300", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/557d035fe88d78dd51664f4dc0e1896c04c97cf6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7f25f296fc9bd0435be14e89bf657cd615a23574"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/94ee7ff99b87435ec63211f632918dc7f44dac79"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aee2424246f9f1dadc33faa78990c1e2eb7826e4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d91d253c87fd1efece521ff2612078a35af673c6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dc8074b8901caabb97c2d353abd6b4e7fa5a59a5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ee39384ee787e86e9db4efb843818ef0ea9cb8ae"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ff5bbbdee08287d75d72e65b72a2b76d9637892a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: RDMA/iwcm: Fix a use-after-free related to destroying CM IDs", "id": "2305430", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2305430"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nRDMA/iwcm: Fix a use-after-free related to destroying CM IDs\niw_conn_req_handler() associates a new struct rdma_id_private (conn_id) with\nan existing struct iw_cm_id (cm_id) as follows:\nconn_id->cm_id.iw = cm_id;\ncm_id->context = conn_id;\ncm_id->cm_handler = cma_iw_handler;\nrdma_destroy_id() frees both the cm_id and the struct rdma_id_private. Make\nsure that cm_work_handler() does not trigger a use-after-free by only\nfreeing of the struct rdma_id_private after all pending work has finished."], "name": "CVE-2024-42285", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-08-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-42285\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-42285\nhttps://lore.kernel.org/linux-cve-announce/2024081744-CVE-2024-42285-37ec@gregkh/T"], "threat_severity": "Moderate"}

{}