{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-38590", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-06-18T19:36:34.930Z", "datePublished": "2024-06-19T13:45:41.928Z", "dateUpdated": "2026-08-05T11:33:02.219Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:33:02.219Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hns: Modify the print level of CQE error\n\nToo much print may lead to a panic in kernel. Change ibdev_err() to\nibdev_err_ratelimited(), and change the printing level of cqe dump\nto debug level." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "baseScore": 7.1, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:A - hns_roce is a RoCE HCA, and the printing path is driven by error completions that a peer on the same RDMA/Ethernet fabric can generate against kernel ULP CQs (NFS/RDMA server, SMB Direct, nvmet-rdma, SMC-R) polled via `__ib_process_cq()` → `hns_roce_v2_poll_cq()`. RoCE is confined to a lossless L2/L3 datacenter segment rather than the open Internet, so the attacker must be on the adjacent fabric.\nAC:L - The attacker fully controls the trigger — repeatedly opening RDMA connections or issuing requests with invalid rkeys deterministically produces non-flush error CQEs, each of which emits an unratelimited KERN_ERR line plus a hex dump. No memory-layout or timing condition outside the attacker's control is involved.\nPR:N - RDMA target services (NFS/RDMA, SMB Direct, nvmet-rdma, SMC-R) accept connections from any peer on the fabric, and connection-setup/teardown transport errors occur before any application-level authentication. The alternative local path only needs an unprivileged user with the world-accessible /dev/infiniband/uverbs* device.\nUI:N - The flood is produced entirely by attacker-initiated RDMA traffic (or attacker-issued poll_cq calls); no action by any local user or administrator is needed.\nS:U - The impact — kernel log flooding, lockup/panic, and log disclosure — stays within the kernel's own security authority on the affected host; no VM, IOMMU, or sandbox boundary is crossed.\nC:L - The KERN_ERR `print_hex_dump()` of the raw CQE exposes connection metadata — rkey/immediate data, local and remote QPN, source MAC, VLAN — to the console and dmesg, where unprivileged local readers see it when dmesg_restrict is off. The leak is real but bounded to 32/64 bytes of completion data, not arbitrary kernel memory.\nI:N - No memory corruption or data modification occurs; the change only alters log verbosity and rate.\nA:H - The commit states outright that \"too much print may lead to a panic in kernel\"; the unratelimited printk plus per-CQE hex dump executes under `spin_lock_irqsave(&hr_cq->lock)`, so a burst of error completions keeps a CPU with interrupts disabled writing to a slow console, producing soft/hard-lockup watchdog panics and console/log saturation." } ] } ], "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_hw_v2.c" ], "versions": [ { "version": "7c044adca272768d821921f11d3da4587dcec68a", "lessThan": "45b31be4dd22827903df15c548b97b416790139b", "status": "affected", "versionType": "git" }, { "version": "7c044adca272768d821921f11d3da4587dcec68a", "lessThan": "cc699b7eb2bc963c12ffcd37f80f45330d2924bd", "status": "affected", "versionType": "git" }, { "version": "7c044adca272768d821921f11d3da4587dcec68a", "lessThan": "17f3741c65c4a042ae8ba094068b07a4b77e213c", "status": "affected", "versionType": "git" }, { "version": "7c044adca272768d821921f11d3da4587dcec68a", "lessThan": "6f541a89ced8305da459e3ab0006e7528cf7da7b", "status": "affected", "versionType": "git" }, { "version": "7c044adca272768d821921f11d3da4587dcec68a", "lessThan": "817a10a6df9354e67561922d2b7fce48dfbebc55", "status": "affected", "versionType": "git" }, { "version": "7c044adca272768d821921f11d3da4587dcec68a", "lessThan": "06cf121346bbd3d83a5eea05bb87666c6b279990", "status": "affected", "versionType": "git" }, { "version": "7c044adca272768d821921f11d3da4587dcec68a", "lessThan": "349e859952285ab9689779fb46de163f13f18f43", "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_hw_v2.c" ], "versions": [ { "version": "5.8", "status": "affected" }, { "version": "0", "lessThan": "5.8", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.219", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.161", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.93", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.33", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.8.12", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9.3", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10", "lessThanOrEqual": "*", "status": 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