{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-46112", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.098Z", "datePublished": "2026-05-28T09:35:20.879Z", "dateUpdated": "2026-08-05T12:29:44.058Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:29:44.058Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hns: Fix unlocked call to hns_roce_qp_remove()\n\nSashiko points out that hns_roce_qp_remove() requires the caller to hold\nlocks. 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" } } } }