CVE-2022-49089

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However, the commit I referenced in\nFixes accidentally makes the call to rvt_error_qp in rvt_ruc_loopback no\nlonger covered by r_lock. This results in the lockdep assertion failing\nand also possibly in a race condition."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable path is rvt_ruc_loopback on the local send engine when an RC/UC QP targets the local LID (hfi1/qib software loopback), reached via ib_uverbs post_send/modify_qp syscalls\u2014not by processing remote fabric packets.\nAC:L - An unprivileged attacker who can open uverbs fully controls both sides of the race by creating multiple local loopback QPs and issuing concurrent post_send operations (one triggering the unlocked rvt_error_qp path, another using the same QP as responder under r_lock).\nPR:L - /dev/infiniband/uverbs* defaults to mode 0666, and creating/using RC QPs for post_send requires no capabilities (CAP_NET_RAW is only for raw packet/QKEY cases), so a normal local user can reach the bug.\nUI:N - Exploitation needs only the attacker\u2019s own RDMA verbs operations; no action by another user is required.\nS:U - Impact is confined to the local host kernel (memory corruption/crash/privilege escalation within the same security authority); this is not a VM escape or IOMMU boundary bypass.\nC:H - rvt_error_qp without r_lock races with concurrent receive-side use of r_sge and can double-put MRs via rvt_clear_mr_refs/rvt_put_ss, yielding a use-after-free of memory regions that can disclose arbitrary kernel/user memory.\nI:H - The same MR use-after-free and corrupted r_sge state provide a heap corruption primitive that can be leveraged for arbitrary writes and control-flow hijacking in the kernel.\nA:H - The related missing-r_lock race in this path already caused documented kernel NULL dereferences (oops/panic) in rvt_clear_mr_refs and copy_sge; the unlocked rvt_error_qp call enables the same availability-destroying crashes."}]}], "affected": [{"product": "Linux", 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no action by another user is required.\nS:U - Impact is confined to the local host kernel (memory corruption/crash/privilege escalation within the same security authority); this is not a VM escape or IOMMU boundary bypass.\nC:H - rvt_error_qp without r_lock races with concurrent receive-side use of r_sge and can double-put MRs via rvt_clear_mr_refs/rvt_put_ss, yielding a use-after-free of memory regions that can disclose arbitrary kernel/user memory.\nI:H - The same MR use-after-free and corrupted r_sge state provide a heap corruption primitive that can be leveraged for arbitrary writes and control-flow hijacking in the kernel.\nA:H - The related missing-r_lock race in this path already caused documented kernel NULL dereferences (oops/panic) in rvt_clear_mr_refs and copy_sge; the unlocked rvt_error_qp call enables the same availability-destroying crashes."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "d757c60eca9b22f4d108929a24401e0fdecda0b1", "lessThan": "8a50937227c385a477177c9ffa122b4230e40666", "versionType": "git"}, {"status": "affected", "version": "d757c60eca9b22f4d108929a24401e0fdecda0b1", "lessThan": "43c2d7890ecabe527448a6c391fb2d9a5e6bbfe0", "versionType": "git"}, {"status": "affected", "version": "d757c60eca9b22f4d108929a24401e0fdecda0b1", "lessThan": "92f1947c0d26060e978b3a9f21f32ce7c8c9cca3", "versionType": "git"}, {"status": "affected", "version": "d757c60eca9b22f4d108929a24401e0fdecda0b1", "lessThan": "77ffb2495a41098f9d6a14f8aefde3188da75944", "versionType": "git"}, {"status": "affected", "version": "d757c60eca9b22f4d108929a24401e0fdecda0b1", "lessThan": "57800cc36e55db0547461c49acf5cd84c0f502b0", "versionType": "git"}, {"status": "affected", "version": "d757c60eca9b22f4d108929a24401e0fdecda0b1", "lessThan": "4d809f69695d4e7d1378b3a072fa9aef23123018", "versionType": "git"}, {"status": "affected", "version": "25636de95557a95d54ac30be94af3748345a0a90", "versionType": "git"}, {"status": "affected", "version": "5.0.4", "lessThan": "5.1", "versionType": "semver"}], "programFiles": ["drivers/infiniband/sw/rdmavt/qp.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.1"}, {"status": "unaffected", "version": "0", "lessThan": "5.1", "versionType": "semver"}, {"status": "unaffected", "version": "5.4.189", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.111", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.34", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "5.16.20", "versionType": "semver", "lessThanOrEqual": "5.16.*"}, {"status": "unaffected", "version": "5.17.3", "versionType": "semver", "lessThanOrEqual": "5.17.*"}, {"status": "unaffected", "version": "5.18", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/infiniband/sw/rdmavt/qp.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/8a50937227c385a477177c9ffa122b4230e40666"}, {"url": "https://git.kernel.org/stable/c/43c2d7890ecabe527448a6c391fb2d9a5e6bbfe0"}, {"url": "https://git.kernel.org/stable/c/92f1947c0d26060e978b3a9f21f32ce7c8c9cca3"}, {"url": "https://git.kernel.org/stable/c/77ffb2495a41098f9d6a14f8aefde3188da75944"}, {"url": "https://git.kernel.org/stable/c/57800cc36e55db0547461c49acf5cd84c0f502b0"}, {"url": "https://git.kernel.org/stable/c/4d809f69695d4e7d1378b3a072fa9aef23123018"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition\n\nThe documentation of the function rvt_error_qp says both r_lock and s_lock\nneed to be held when calling that function. 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It also asserts using lockdep\nthat both of those locks are held. However, the commit I referenced in\nFixes accidentally makes the call to rvt_error_qp in rvt_ruc_loopback no\nlonger covered by r_lock. This results in the lockdep assertion failing\nand also possibly in a race condition."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: IB/rdmavt: agregar bloqueo a la llamada a rvt_error_qp para evitar una condici\u00f3n de ejecuci\u00f3n La documentaci\u00f3n de la funci\u00f3n rvt_error_qp dice que tanto r_lock como s_lock deben mantenerse al llamar a esa funci\u00f3n. Tambi\u00e9n afirma usando lockdep que ambos bloqueos se mantienen. Sin embargo, el commit a la que hice referencia en Correcciones hace que la llamada a rvt_error_qp en rvt_ruc_loopback ya no est\u00e9 cubierta por r_lock. Esto da como resultado que la afirmaci\u00f3n de lockdep falle y tambi\u00e9n posiblemente en una condici\u00f3n de ejecuci\u00f3n."}], "id": "CVE-2022-49089", "lastModified": "2026-10-15T22:17:22.763", "metrics": {"cvssMetricV31": [{"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": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-49089", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-15T21:12:54.975146Z", "version": "2.0.3"}}]}, "published": "2025-02-26T07:00:46.240", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/43c2d7890ecabe527448a6c391fb2d9a5e6bbfe0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4d809f69695d4e7d1378b3a072fa9aef23123018"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/57800cc36e55db0547461c49acf5cd84c0f502b0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/77ffb2495a41098f9d6a14f8aefde3188da75944"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8a50937227c385a477177c9ffa122b4230e40666"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/92f1947c0d26060e978b3a9f21f32ce7c8c9cca3"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}, {"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition", "id": "2348045", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348045"}, "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:\nIB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition\nThe documentation of the function rvt_error_qp says both r_lock and s_lock\nneed to be held when calling that function. It also asserts using lockdep\nthat both of those locks are held. However, the commit I referenced in\nFixes accidentally makes the call to rvt_error_qp in rvt_ruc_loopback no\nlonger covered by r_lock. This results in the lockdep assertion failing\nand also possibly in a race condition."], "name": "CVE-2022-49089", "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": "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": "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": "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": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49089\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49089\nhttps://lore.kernel.org/linux-cve-announce/2025022658-CVE-2022-49089-2a32@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-12T22:00:49.842094+00:00", "updated": "2025-07-12T22:00:49.842144+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}