{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74377", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.889Z", "datePublished": "2026-08-15T05:58:55.704Z", "dateUpdated": "2026-08-15T05:58:55.704Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T05:58:55.704Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rxe: Copy WQE to local buffer in non-SRQ receive path\n\nFor non-SRQ QPs, the responder reads WQE fields directly from the\nshared queue buffer mapped into userspace. This allows a malicious\nuser to modify fields like num_sge or sge entries while the kernel\nis processing the WQE, leading to out-of-bounds reads in\nrxe_resp_check_length() and copy_data().\n\nIntroduce get_recv_wqe() that validates num_sge and copies the WQE\nto a kernel-local buffer before processing, matching the approach\nalready used for SRQ WQEs in get_srq_wqe(). The srq_wqe buffer is\nreused since SRQ and non-SRQ paths are mutually exclusive per QP."}], "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_resp.c"], "versions": [{"version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "2e60378fb3c8b51c94103bb40014c4fe38fa5033", "status": "affected", "versionType": "git"}, {"version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "fc72fd61cc8b2e2e3e92ae4c0e9cc30c9a7ecb78", "status": "affected", "versionType": "git"}, {"version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "9fa785137303f7109c23dea779b8dedc67c9b531", "status": "affected", "versionType": "git"}, {"version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "5420eebf3b3c162bfaf965f30e61cd1d689e5732", "status": "affected", "versionType": "git"}, {"version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "a211b7904aed365e4e4f08a48ec6e6dd1ea7b16b", "status": "affected", "versionType": "git"}, {"version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "d6ab440240a04b8737ee4c7bb21af9182e451733", "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/sw/rxe/rxe_resp.c"], "versions": [{"version": "4.8", "status": "affected"}, {"version": "0", "lessThan": "4.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc1", "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": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "7.2-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2e60378fb3c8b51c94103bb40014c4fe38fa5033"}, {"url": "https://git.kernel.org/stable/c/fc72fd61cc8b2e2e3e92ae4c0e9cc30c9a7ecb78"}, {"url": "https://git.kernel.org/stable/c/9fa785137303f7109c23dea779b8dedc67c9b531"}, {"url": "https://git.kernel.org/stable/c/5420eebf3b3c162bfaf965f30e61cd1d689e5732"}, {"url": "https://git.kernel.org/stable/c/a211b7904aed365e4e4f08a48ec6e6dd1ea7b16b"}, {"url": "https://git.kernel.org/stable/c/d6ab440240a04b8737ee4c7bb21af9182e451733"}], "title": "RDMA/rxe: Copy WQE to local buffer in non-SRQ receive path", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/infiniband/sw/rxe/rxe_resp.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "2e60378fb3c8b51c94103bb40014c4fe38fa5033", "status": "affected", "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "versionType": "git"}, {"lessThan": "fc72fd61cc8b2e2e3e92ae4c0e9cc30c9a7ecb78", "status": "affected", "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "versionType": "git"}, {"lessThan": "9fa785137303f7109c23dea779b8dedc67c9b531", "status": "affected", "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "versionType": "git"}, {"lessThan": "5420eebf3b3c162bfaf965f30e61cd1d689e5732", "status": "affected", "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "versionType": "git"}, {"lessThan": "a211b7904aed365e4e4f08a48ec6e6dd1ea7b16b", "status": "affected", "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "versionType": "git"}, {"lessThan": "d6ab440240a04b8737ee4c7bb21af9182e451733", "status": "affected", "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/infiniband/sw/rxe/rxe_resp.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.8"}, {"lessThan": "4.8", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc1", "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: Copy WQE to local buffer in non-SRQ receive path\n\nFor non-SRQ QPs, the responder reads WQE fields directly from the\nshared queue buffer mapped into userspace. This allows a malicious\nuser to modify fields like num_sge or sge entries while the kernel\nis processing the WQE, leading to out-of-bounds reads in\nrxe_resp_check_length() and copy_data().\n\nIntroduce get_recv_wqe() that validates num_sge and copies the WQE\nto a kernel-local buffer before processing, matching the approach\nalready used for SRQ WQEs in get_srq_wqe(). The srq_wqe buffer is\nreused since SRQ and non-SRQ paths are mutually exclusive per QP."}], "id": "CVE-2026-74377", "lastModified": "2026-08-15T06:22:39.487", "metrics": {}, "published": "2026-08-15T06:22:39.487", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2e60378fb3c8b51c94103bb40014c4fe38fa5033"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5420eebf3b3c162bfaf965f30e61cd1d689e5732"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9fa785137303f7109c23dea779b8dedc67c9b531"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a211b7904aed365e4e4f08a48ec6e6dd1ea7b16b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d6ab440240a04b8737ee4c7bb21af9182e451733"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fc72fd61cc8b2e2e3e92ae4c0e9cc30c9a7ecb78"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}