{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-53094", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-11-19T17:17:24.982Z", "datePublished": "2024-11-21T18:17:10.600Z", "dateUpdated": "2026-08-05T11:43:37.995Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:43:37.995Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/siw: Add sendpage_ok() check to disable MSG_SPLICE_PAGES\n\nWhile running ISER over SIW, the initiator machine encounters a warning\nfrom skb_splice_from_iter() indicating that a slab page is being used in\nsend_page. To address this, it is better to add a sendpage_ok() check\nwithin the driver itself, and if it returns 0, then MSG_SPLICE_PAGES flag\nshould be disabled before entering the network stack.\n\nA similar issue has been discussed for NVMe in this thread:\nhttps://lore.kernel.org/all/20240530142417.146696-1-ofir.gal@volumez.com/\n\n WARNING: CPU: 0 PID: 5342 at net/core/skbuff.c:7140 skb_splice_from_iter+0x173/0x320\n Call Trace:\n tcp_sendmsg_locked+0x368/0xe40\n siw_tx_hdt+0x695/0xa40 [siw]\n siw_qp_sq_process+0x102/0xb00 [siw]\n siw_sq_resume+0x39/0x110 [siw]\n siw_run_sq+0x74/0x160 [siw]\n kthread+0xd2/0x100\n ret_from_fork+0x34/0x40\n ret_from_fork_asm+0x1a/0x30" } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL" }, "scenarios": [ { "lang": "en", "value": "AV:N - siw is an RDMA-over-TCP transport, and the vulnerable transmit path is driven by remote input — `siw_init_rresp()` takes the read length, local address and stag directly from a peer's RDMA Read Request off the TCP stream, and any length ≥ PAGE_SIZE selects the `MSG_SPLICE_PAGES` zero-copy path. The reported failure also occurs in ordinary remote-peer-driven iSER-over-siw traffic.\nAC:L - No race or unpredictable state is involved; slab-backed kernel-ULP buffers are the normal case (the reporter hit it in routine ISER-over-SIW operation), and the peer simply issues a read/transfer of at least PAGE_SIZE against an advertised region. `zcopy_tx` is hardcoded true and READ_RESPONSE WQEs are always unsignalled, so the zero-copy path is taken deterministically.\nPR:N - iWARP/MPA has no in-kernel authentication, and the RX path processes an inbound RDMA Read Request and queues the READ_RESPONSE with `perms = 0` — no access-rights or credential check gates the vulnerable transmit path. A peer at the far end of the RDMA connection holds no privileges on the victim host.\nUI:N - Triggering requires only normal or attacker-generated RDMA traffic on an established connection; no action by a local user or administrator on the victim system is needed.\nS:U - The fault, the corrupted page references and the resulting crash all occur within the victim kernel's own security authority; no VM, IOMMU or sandbox boundary is crossed.\nC:H - Handing non-`sendpage_ok()` pages to the network stack is exactly the condition `sendpage_ok()` exists to prevent — TCP retains references to slab pages that the allocator may recycle, so retransmitted segments can leak recycled kernel slab contents to the remote peer, and the resulting refcount corruption is a memory-corruption class defect leverageable for disclosure.\nI:H - `get_page()`/`put_page()` on slab pages corrupts the page refcount and can release a page that is still in use (the \"delayed Oops\" documented in include/linux/net.h), a use-after-free-class primitive; data transmitted from buffers the ULP has already freed or reused also corrupts on-wire data and MPA CRCs.\nA:H - The bad page trips `WARN_ON_ONCE()` in `skb_splice_from_iter()`, which is a kernel panic on any system with `panic_on_warn=1`, and returns `-EIO`, which aborts the FPDU, drives the QP to error state and tears down the RDMA storage/NFS session — repeatably, at the remote peer's discretion." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/infiniband/sw/siw/siw_qp_tx.c" ], "versions": [ { "version": "0e935ae6afcdbe6f0c0aa457ae57feccc63bb9be", "lessThan": "3406bfc813a9bbd9c3055795e985f527b7852e8c", "status": "affected", "versionType": "git" }, { "version": "0e935ae6afcdbe6f0c0aa457ae57feccc63bb9be", "lessThan": "bb5738957d92c8603a90c9664d34236641c221b2", "status": "affected", "versionType": "git" }, { "version": "0e935ae6afcdbe6f0c0aa457ae57feccc63bb9be", "lessThan": "4e1e3dd88a4cedd5ccc1a3fc3d71e03b70a7a791", "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/siw/siw_qp_tx.c" ], "versions": [ { "version": "5.3", "status": "affected" }, { "version": "0", "lessThan": "5.3", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.62", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.9", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12", "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": "5.3", "versionEndExcluding": "6.6.62" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.11.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.12" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/3406bfc813a9bbd9c3055795e985f527b7852e8c" }, { "url": "https://git.kernel.org/stable/c/bb5738957d92c8603a90c9664d34236641c221b2" }, { "url": "https://git.kernel.org/stable/c/4e1e3dd88a4cedd5ccc1a3fc3d71e03b70a7a791" } ], "title": "RDMA/siw: Add sendpage_ok() check to disable MSG_SPLICE_PAGES", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2024-53094", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T20:11:21.053170Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "description": "CWE-noinfo Not enough information" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T20:17:12.985Z" } } ] } }