CVE-2026-46112

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The error flow in hns_roce_create_qp_common() doesn't hold those\nlocks for the error unwind so it risks corrupting memory.\n\nGrab the same locks the other two callers use."}], "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 bug is reached through the local RDMA uverbs character device (ibv_create_qp), a control-plane operation; it cannot be triggered by a remote peer sending RDMA packets.\nAC:L - The attacker can reliably force the error-unwind path (e.g., a faulting ib_copy_to_udata output buffer) and controls both sides of the race by running concurrent QP create/destroy and CQ-poll operations on the same device/CQs.\nPR:L - Creating a QP requires access to the RDMA verbs device but no CAP/root; an unprivileged local user with RDMA access (common in HPC/cloud/container deployments) can reach the code.\nUI:N - The attacker triggers QP creation and the error path directly with no action required from any other user.\nS:U - Corruption stays within the kernel's own memory/security authority; no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - Unlocked list_del causes linked-list corruption that can be leveraged into use-after-free and arbitrary kernel-memory disclosure; per guidance memory corruption exploitable for info leak is High.\nI:H - Racing list_del/list_add writes attacker-influenced pointer values into neighbor nodes, a memory-corruption write primitive that can be escalated to control-flow hijack; High.\nA:H - List corruption and the resulting use-after-free reliably oops/panic the kernel, a 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/hw/hns/hns_roce_qp.c"], "versions": [{"version": "e088a685eae94a0607b8f7b99949a0e14d748813", "lessThan": "1f0a3aa8b569d010316b427238222c5d899f9618", "status": "affected", "versionType": "git"}, {"version": "e088a685eae94a0607b8f7b99949a0e14d748813", "lessThan": "b6296ff2475fc95ee6ea1b528c4b385302808186", "status": "affected", "versionType": "git"}, {"version": "e088a685eae94a0607b8f7b99949a0e14d748813", "lessThan": "fb4ae739811d467409bd07d0e36cfd4140f3d26a", "status": "affected", "versionType": "git"}, {"version": "e088a685eae94a0607b8f7b99949a0e14d748813", "lessThan": "fcf6a832c0d5b2bc5398d6996c5570d3ee7993fb", "status": "affected", "versionType": "git"}, {"version": "e088a685eae94a0607b8f7b99949a0e14d748813", "lessThan": "1912f78798505dc9c637081bbddfbf1c22494c49", "status": "affected", "versionType": "git"}, {"version": "e088a685eae94a0607b8f7b99949a0e14d748813", "lessThan": "615d9d260c32bb678504ca96f29ae46f9d745155", "status": "affected", "versionType": "git"}, {"version": "e088a685eae94a0607b8f7b99949a0e14d748813", "lessThan": "0c99acbc8b6c6dd526ae475a48ee1897b61072fb", "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/hw/hns/hns_roce_qp.c"], "versions": [{"version": "4.17", "status": "affected"}, {"version": "0", "lessThan": "4.17", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.88", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.30", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.7", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "4.17", "versionEndExcluding": "5.15.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.6.140"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.12.88"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.18.30"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "7.0.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/1f0a3aa8b569d010316b427238222c5d899f9618"}, {"url": "https://git.kernel.org/stable/c/b6296ff2475fc95ee6ea1b528c4b385302808186"}, {"url": "https://git.kernel.org/stable/c/fb4ae739811d467409bd07d0e36cfd4140f3d26a"}, {"url": "https://git.kernel.org/stable/c/fcf6a832c0d5b2bc5398d6996c5570d3ee7993fb"}, {"url": "https://git.kernel.org/stable/c/1912f78798505dc9c637081bbddfbf1c22494c49"}, {"url": "https://git.kernel.org/stable/c/615d9d260c32bb678504ca96f29ae46f9d745155"}, {"url": "https://git.kernel.org/stable/c/0c99acbc8b6c6dd526ae475a48ee1897b61072fb"}], "title": "RDMA/hns: Fix unlocked call to hns_roce_qp_remove()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

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The error flow in hns_roce_create_qp_common() doesn't hold those\nlocks for the error unwind so it risks corrupting memory.\n\nGrab the same locks the other two callers use."}], "id": "CVE-2026-46112", "lastModified": "2026-06-24T18:25:40.057", "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"}]}, "published": "2026-05-28T10:16:26.660", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0c99acbc8b6c6dd526ae475a48ee1897b61072fb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1912f78798505dc9c637081bbddfbf1c22494c49"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1f0a3aa8b569d010316b427238222c5d899f9618"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/615d9d260c32bb678504ca96f29ae46f9d745155"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b6296ff2475fc95ee6ea1b528c4b385302808186"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fb4ae739811d467409bd07d0e36cfd4140f3d26a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fcf6a832c0d5b2bc5398d6996c5570d3ee7993fb"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Undergoing Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: RDMA/hns: Fix unlocked call to hns_roce_qp_remove()", "id": "2482580", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482580"}, "csaw": false, "cwe": "CWE-413", "details": ["A flaw was found in the Linux kernel's RDMA/hns component. An issue exists where the `hns_roce_qp_remove()` function is called without proper locking during an error handling process. This can lead to memory corruption, potentially causing system instability or a denial of service (DoS) condition. A local attacker could exploit this vulnerability."], "name": "CVE-2026-46112", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46112\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46112\nhttps://lore.kernel.org/linux-cve-announce/2026052813-CVE-2026-46112-3dff@gregkh/T"]}

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