{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-53151", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-11-19T17:17:25.000Z", "datePublished": "2024-12-24T11:28:50.917Z", "dateUpdated": "2026-08-05T11:44:11.228Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:44:11.228Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsvcrdma: Address an integer overflow\n\nDan Carpenter reports:\n> Commit 78147ca8b4a9 (\"svcrdma: Add a \"parsed chunk list\" data\n> structure\") from Jun 22, 2020 (linux-next), leads to the following\n> Smatch static checker warning:\n>\n>\tnet/sunrpc/xprtrdma/svc_rdma_recvfrom.c:498 xdr_check_write_chunk()\n>\twarn: potential user controlled sizeof overflow 'segcount * 4 * 4'\n>\n> net/sunrpc/xprtrdma/svc_rdma_recvfrom.c\n> 488 static bool xdr_check_write_chunk(struct svc_rdma_recv_ctxt *rctxt)\n> 489 {\n> 490 u32 segcount;\n> 491 __be32 *p;\n> 492\n> 493 if (xdr_stream_decode_u32(&rctxt->rc_stream, &segcount))\n> ^^^^^^^^\n>\n> 494 return false;\n> 495\n> 496 /* A bogus segcount causes this buffer overflow check to fail. */\n> 497 p = xdr_inline_decode(&rctxt->rc_stream,\n> --> 498 segcount * rpcrdma_segment_maxsz * sizeof(*p));\n>\n>\n> segcount is an untrusted u32. On 32bit systems anything >= SIZE_MAX / 16 will\n> have an integer overflow and some those values will be accepted by\n> xdr_inline_decode()." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:N - The flaw is in nfsd's RPC-over-RDMA server transport header parser, driven entirely by bytes a remote peer places in a Send to the NFS/RDMA listener (port 20049). RoCEv2 and iWARP are IP-routable, and soft-RoCE/soft-iWARP make this reachable over ordinary Ethernet, so this is a remote network attack surface.\nAC:L - The attacker simply encodes segcount=0x40000000 in a Write chunk or Reply chunk; the 32-bit truncation and the xdr_inline_decode(0) short-circuit are deterministic with no race, no memory-layout dependency, and no timing element. Verified the truncation occurs on 64-bit as well as 32-bit hosts.\nPR:N - svc_rdma_xdr_decode_req() runs in svc_rdma_recvfrom() at the transport layer, strictly before svc_process()/svc_authenticate() and before any export or credential check. Any peer able to establish an RDMA-CM connection reaches it with zero credentials.\nUI:N - The malformed transport header is processed automatically by the nfsd receive path as soon as it arrives. No action by any local user or administrator is required.\nS:U - The bad computation and its consequences are confined to the kernel's own memory management within the same security authority. There is no VM, IOMMU, or sandbox boundary crossed.\nC:N - I traced every consumer of the bogus segcount: the only use is pcl_alloc_chunk(), whose oversized kmalloc fails before pcl_alloc_write() can dereference its unchecked raw pointer, so no out-of-bounds data is read. The failed decode returns only a generic RDMA_ERROR reply, disclosing nothing.\nI:N - The bounds-check bypass never reaches the unbounded ch_segments[] write loop in pcl_alloc_write(), because chunk allocation aborts first and the request is rejected with -EINVAL. No kernel memory is modified and no attacker-controlled data is written out of bounds.\nA:H - The bypassed check drives a multi-gigabyte kmalloc whose order exceeds MAX_PAGE_ORDER, tripping WARN_ON_ONCE_GFP() in __alloc_pages() with a stack trace and kernel taint; on the widely deployed panic_on_warn=1 configurations this is an immediate kernel panic triggered by an unauthenticated remote peer." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/sunrpc/xprtrdma/svc_rdma_recvfrom.c" ], "versions": [ { "version": "78147ca8b4a9b6cf0e597ddd6bf17959e08376c2", "lessThan": "21e1cf688fb0397788c8dd42e1e0b08d58ac5c7b", "status": "affected", "versionType": "git" }, { "version": "78147ca8b4a9b6cf0e597ddd6bf17959e08376c2", "lessThan": "c1f8195bf68edd2cef0f18a4cead394075a54b5a", "status": "affected", "versionType": "git" }, { "version": "78147ca8b4a9b6cf0e597ddd6bf17959e08376c2", "lessThan": "838dd342962cef4c320632a5af48d3c31f2f9877", "status": "affected", "versionType": "git" }, { "version": "78147ca8b4a9b6cf0e597ddd6bf17959e08376c2", "lessThan": "4cbc3ba6dc2f746497cade60bcbaa82ae3696689", "status": "affected", "versionType": "git" }, { "version": "78147ca8b4a9b6cf0e597ddd6bf17959e08376c2", "lessThan": "e5c440c227ecdc721f2da0dd88b6358afd1031a7", "status": "affected", "versionType": "git" }, { "version": "78147ca8b4a9b6cf0e597ddd6bf17959e08376c2", "lessThan": "3c63d8946e578663b868cb9912dac616ea68bfd0", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/sunrpc/xprtrdma/svc_rdma_recvfrom.c" ], "versions": [ { "version": "5.11", "status": "affected" }, { "version": "0", "lessThan": "5.11", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.174", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.120", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.64", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.11", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.2", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13", "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": "5.11", "versionEndExcluding": "5.15.174" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.1.120" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.6.64" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.11.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.12.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.13" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/21e1cf688fb0397788c8dd42e1e0b08d58ac5c7b" }, { "url": "https://git.kernel.org/stable/c/c1f8195bf68edd2cef0f18a4cead394075a54b5a" }, { "url": "https://git.kernel.org/stable/c/838dd342962cef4c320632a5af48d3c31f2f9877" }, { "url": "https://git.kernel.org/stable/c/4cbc3ba6dc2f746497cade60bcbaa82ae3696689" }, { "url": "https://git.kernel.org/stable/c/e5c440c227ecdc721f2da0dd88b6358afd1031a7" }, { "url": "https://git.kernel.org/stable/c/3c63d8946e578663b868cb9912dac616ea68bfd0" } ], "title": "svcrdma: Address an integer overflow", "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-2024-53151", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T20:09:46.736232Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-190", "description": "CWE-190 Integer Overflow or Wraparound" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T20:17:09.093Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T20:46:36.897Z" } } ] } }