{"api_version":"1","generated_at":"2026-08-15T08:44:36+00:00","cve":"CVE-2026-74377","urls":{"html":"https://cve.report/CVE-2026-74377","api":"https://cve.report/api/cve/CVE-2026-74377.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74377","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74377"},"summary":{"title":"RDMA/rxe: Copy WQE to local buffer in non-SRQ receive path","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:39","updated_at":"2026-08-15 06:22:39"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/fc72fd61cc8b2e2e3e92ae4c0e9cc30c9a7ecb78","name":"https://git.kernel.org/stable/c/fc72fd61cc8b2e2e3e92ae4c0e9cc30c9a7ecb78","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9fa785137303f7109c23dea779b8dedc67c9b531","name":"https://git.kernel.org/stable/c/9fa785137303f7109c23dea779b8dedc67c9b531","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5420eebf3b3c162bfaf965f30e61cd1d689e5732","name":"https://git.kernel.org/stable/c/5420eebf3b3c162bfaf965f30e61cd1d689e5732","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a211b7904aed365e4e4f08a48ec6e6dd1ea7b16b","name":"https://git.kernel.org/stable/c/a211b7904aed365e4e4f08a48ec6e6dd1ea7b16b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d6ab440240a04b8737ee4c7bb21af9182e451733","name":"https://git.kernel.org/stable/c/d6ab440240a04b8737ee4c7bb21af9182e451733","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2e60378fb3c8b51c94103bb40014c4fe38fa5033","name":"https://git.kernel.org/stable/c/2e60378fb3c8b51c94103bb40014c4fe38fa5033","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74377","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74377","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8700e3e7c4857d28ebaa824509934556da0b3e76 2e60378fb3c8b51c94103bb40014c4fe38fa5033 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8700e3e7c4857d28ebaa824509934556da0b3e76 fc72fd61cc8b2e2e3e92ae4c0e9cc30c9a7ecb78 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8700e3e7c4857d28ebaa824509934556da0b3e76 9fa785137303f7109c23dea779b8dedc67c9b531 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8700e3e7c4857d28ebaa824509934556da0b3e76 5420eebf3b3c162bfaf965f30e61cd1d689e5732 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8700e3e7c4857d28ebaa824509934556da0b3e76 a211b7904aed365e4e4f08a48ec6e6dd1ea7b16b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8700e3e7c4857d28ebaa824509934556da0b3e76 d6ab440240a04b8737ee4c7bb21af9182e451733 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.8","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.8 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.178 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.97 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.40 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"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"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.178","versionStartIncluding":"4.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"4.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.97","versionStartIncluding":"4.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"4.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"4.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","versionStartIncluding":"4.8","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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."}],"providerMetadata":{"dateUpdated":"2026-08-15T05:58:55.704Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74377","datePublished":"2026-08-15T05:58:55.704Z","dateReserved":"2026-08-15T05:44:03.889Z","dateUpdated":"2026-08-15T05:58:55.704Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:39","lastModifiedDate":"2026-08-15 06:22:39","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74377","Ordinal":"1","Title":"RDMA/rxe: Copy WQE to local buffer in non-SRQ receive path","CVE":"CVE-2026-74377","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74377","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"RDMA/rxe: Copy WQE to local buffer in non-SRQ receive path"}]}}}