CVE-2022-50671

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checked."}], "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 - Soft RoCE (UDP/4791) backs network RDMA servers such as ksmbd SMB Direct and nvmet-rdma; on RDMA_CM CONNECT_REQUEST those ULPs create an IB_QPT_RC QP through rxe_create_qp, so a remote peer drives the vulnerable create/cleanup path.\nAC:L - A remote peer can open many Soft-RoCE RC connections until rxe_queue_init's vmalloc_user fails (ENOMEM), then the next create hits rxe_qp_do_cleanup with qp->req.task.func == NULL and oopses deterministically; resource exhaustion and the failing create are attacker-controlled.\nPR:N - QP creation for ksmbd smbdirect and nvmet-rdma occurs on RDMA_CM CONNECT_REQUEST before any ULP authentication, so an unauthenticated network peer reaches the bug.\nUI:N - Exploitation needs only attacker-initiated RDMA CM connections (or local uverbs create_qp); no victim mount, click, or other interaction is required.\nS:U - The NULL function-pointer call crashes the host kernel within the same security authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:N - The fault is a pure NULL instruction fetch (task->func == NULL because the QP was kzalloc'd and rxe_init_task never ran) with no UAF, OOB read, or other disclosure primitive.\nI:N - No memory is written or corrupted before the oops; there is no arbitrary write, type confusion, or control-flow hijack path from this bug alone.\nA:H - The NULL dereference produces a kernel oops/panic on the create-failure cleanup path (__rxe_do_task) and can be re-triggered by further connection attempts after resource exhaustion."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/sw/rxe/rxe_qp.c"], "versions": [{"version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "48cd7098e71735ccafa0b3cf27c53924f9cb5b2f", "status": "affected", "versionType": "git"}, {"version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "eca119693010032d6cc6e7e9b4fb2c363c7e12ce", "status": "affected", "versionType": "git"}, {"version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "9c5dd6993c794703e74c6ba17ac78ca0211ef940", "status": "affected", "versionType": "git"}, {"version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "0d773c58d702f0a7c16ee8d69617fd2c28350795", "status": "affected", "versionType": "git"}, {"version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "cdce36a88def550773142a34ef727a830cad96a8", "status": "affected", "versionType": "git"}, {"version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "f2f405af70e6f0419e718d23fa304798a5405c41", "status": "affected", "versionType": "git"}, {"version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": 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"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "6.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/48cd7098e71735ccafa0b3cf27c53924f9cb5b2f"}, {"url": "https://git.kernel.org/stable/c/eca119693010032d6cc6e7e9b4fb2c363c7e12ce"}, {"url": "https://git.kernel.org/stable/c/9c5dd6993c794703e74c6ba17ac78ca0211ef940"}, {"url": "https://git.kernel.org/stable/c/0d773c58d702f0a7c16ee8d69617fd2c28350795"}, {"url": "https://git.kernel.org/stable/c/cdce36a88def550773142a34ef727a830cad96a8"}, {"url": "https://git.kernel.org/stable/c/f2f405af70e6f0419e718d23fa304798a5405c41"}, {"url": "https://git.kernel.org/stable/c/bb33fa65da77f5f02dbee6f25cebaeedfcd70028"}, {"url": "https://git.kernel.org/stable/c/3b8752f086eb6865cc3662ad13249b03024501e5"}, {"url": "https://git.kernel.org/stable/c/a625ca30eff806395175ebad3ac1399014bdb280"}], "title": "RDMA/rxe: Fix \"kernel NULL pointer dereference\" error", "x_generator": {"engine": 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path.\nAC:L - A remote peer can open many Soft-RoCE RC connections until rxe_queue_init's vmalloc_user fails (ENOMEM), then the next create hits rxe_qp_do_cleanup with qp->req.task.func == NULL and oopses deterministically; resource exhaustion and the failing create are attacker-controlled.\nPR:N - QP creation for ksmbd smbdirect and nvmet-rdma occurs on RDMA_CM CONNECT_REQUEST before any ULP authentication, so an unauthenticated network peer reaches the bug.\nUI:N - Exploitation needs only attacker-initiated RDMA CM connections (or local uverbs create_qp); no victim mount, click, or other interaction is required.\nS:U - The NULL function-pointer call crashes the host kernel within the same security authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:N - The fault is a pure NULL instruction fetch (task->func == NULL because the QP was kzalloc'd and rxe_init_task never ran) with no UAF, OOB read, or other disclosure primitive.\nI:N - No memory is written or corrupted before the oops; there is no arbitrary write, type confusion, or control-flow hijack path from this bug alone.\nA:H - The NULL dereference produces a kernel oops/panic on the create-failure cleanup path (__rxe_do_task) and can be re-triggered by further connection attempts after resource exhaustion."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "48cd7098e71735ccafa0b3cf27c53924f9cb5b2f", "versionType": "git"}, {"status": "affected", "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "eca119693010032d6cc6e7e9b4fb2c363c7e12ce", "versionType": "git"}, {"status": "affected", "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "9c5dd6993c794703e74c6ba17ac78ca0211ef940", "versionType": "git"}, {"status": "affected", "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "0d773c58d702f0a7c16ee8d69617fd2c28350795", "versionType": "git"}, {"status": "affected", "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "cdce36a88def550773142a34ef727a830cad96a8", "versionType": "git"}, {"status": "affected", "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "f2f405af70e6f0419e718d23fa304798a5405c41", "versionType": "git"}, {"status": "affected", "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "bb33fa65da77f5f02dbee6f25cebaeedfcd70028", "versionType": "git"}, {"status": "affected", "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "3b8752f086eb6865cc3662ad13249b03024501e5", "versionType": "git"}, {"status": "affected", "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "a625ca30eff806395175ebad3ac1399014bdb280", "versionType": "git"}], "programFiles": ["drivers/infiniband/sw/rxe/rxe_qp.c"], "defaultStatus": "unaffected"}, {"repo": 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"version": "0", "versionType": "semver"}, {"lessThanOrEqual": "4.9.*", "status": "unaffected", "version": "4.9.331", "versionType": "semver"}, {"lessThanOrEqual": "4.14.*", "status": "unaffected", "version": "4.14.296", "versionType": "semver"}, {"lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.262", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.220", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.150", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.75", "versionType": "semver"}, {"lessThanOrEqual": "5.19.*", "status": "unaffected", "version": "5.19.17", "versionType": "semver"}, {"lessThanOrEqual": "6.0.*", "status": "unaffected", "version": "6.0.3", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rxe: Fix \"kernel NULL pointer dereference\" error\n\nWhen rxe_queue_init in the function rxe_qp_init_req fails,\nboth qp->req.task.func and qp->req.task.arg are not initialized.\n\nBecause of creation of qp fails, the function rxe_create_qp will\ncall rxe_qp_do_cleanup to handle allocated resource.\n\nBefore calling __rxe_do_task, both qp->req.task.func and\nqp->req.task.arg should be checked."}], "id": "CVE-2022-50671", "lastModified": "2026-10-15T22:17:32.323", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-50671", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-15T21:31:57.230489Z", "version": "2.0.3"}}]}, "published": "2025-12-09T16:17:19.227", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0d773c58d702f0a7c16ee8d69617fd2c28350795"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3b8752f086eb6865cc3662ad13249b03024501e5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/48cd7098e71735ccafa0b3cf27c53924f9cb5b2f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9c5dd6993c794703e74c6ba17ac78ca0211ef940"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a625ca30eff806395175ebad3ac1399014bdb280"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bb33fa65da77f5f02dbee6f25cebaeedfcd70028"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cdce36a88def550773142a34ef727a830cad96a8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/eca119693010032d6cc6e7e9b4fb2c363c7e12ce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f2f405af70e6f0419e718d23fa304798a5405c41"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: RDMA/rxe: Fix \"kernel NULL pointer dereference\" error", "id": "2420356", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2420356"}, "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": ["No description is available for this CVE."], "name": "CVE-2022-50671", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "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": "2025-12-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50671\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50671\nhttps://lore.kernel.org/linux-cve-announce/2025120946-CVE-2022-50671-e025@gregkh/T"], "threat_severity": "Moderate"}

{}