{"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":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"5.10.219"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"5.15.161"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.1.93"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.6.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.8.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.9.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.10"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/45b31be4dd22827903df15c548b97b416790139b"},{"url":"https://git.kernel.org/stable/c/cc699b7eb2bc963c12ffcd37f80f45330d2924bd"},{"url":"https://git.kernel.org/stable/c/17f3741c65c4a042ae8ba094068b07a4b77e213c"},{"url":"https://git.kernel.org/stable/c/6f541a89ced8305da459e3ab0006e7528cf7da7b"},{"url":"https://git.kernel.org/stable/c/817a10a6df9354e67561922d2b7fce48dfbebc55"},{"url":"https://git.kernel.org/stable/c/06cf121346bbd3d83a5eea05bb87666c6b279990"},{"url":"https://git.kernel.org/stable/c/349e859952285ab9689779fb46de163f13f18f43"}],"title":"RDMA/hns: 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