{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-56717", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-27T15:00:39.858Z", "datePublished": "2024-12-29T08:48:49.958Z", "dateUpdated": "2026-08-05T11:46:14.927Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:46:14.927Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mscc: ocelot: fix incorrect IFH SRC_PORT field in ocelot_ifh_set_basic()\n\nPackets injected by the CPU should have a SRC_PORT field equal to the\nCPU port module index in the Analyzer block (ocelot->num_phys_ports).\n\nThe blamed commit copied the ocelot_ifh_set_basic() call incorrectly\nfrom ocelot_xmit_common() in net/dsa/tag_ocelot.c. Instead of calling\nwith \"x\", it calls with BIT_ULL(x), but the field is not a port mask,\nbut rather a single port index.\n\n[ side note: this is the technical debt of code duplication :( ]\n\nThe error used to be silent and doesn't appear to have other\nuser-visible manifestations, but with new changes in the packing\nlibrary, it now fails loudly as follows:\n\n------------[ cut here ]------------\nCannot store 0x40 inside bits 46-43 - will truncate\nsja1105 spi2.0: xmit timed out\nWARNING: CPU: 1 PID: 102 at lib/packing.c:98 __pack+0x90/0x198\nsja1105 spi2.0: timed out polling for tstamp\nCPU: 1 UID: 0 PID: 102 Comm: felix_xmit\nTainted: G W N 6.13.0-rc1-00372-gf706b85d972d-dirty #2605\nCall trace:\n __pack+0x90/0x198 (P)\n __pack+0x90/0x198 (L)\n packing+0x78/0x98\n ocelot_ifh_set_basic+0x260/0x368\n ocelot_port_inject_frame+0xa8/0x250\n felix_port_deferred_xmit+0x14c/0x258\n kthread_worker_fn+0x134/0x350\n kthread+0x114/0x138\n\nThe code path pertains to the ocelot switchdev driver and to the felix\nsecondary DSA tag protocol, ocelot-8021q. Here seen with ocelot-8021q.\n\nThe messenger (packing) is not really to blame, so fix the original\ncommit instead." } ], "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 vulnerable code is the transmit/injection path of an Ethernet switch driver, reached whenever the kernel emits a frame on an ocelot/felix port — including replies to unauthenticated remote traffic (ARP/ICMP/TCP) and routed traffic, and specifically the ocelot-8021q PTP response path shown in the reported stack trace, where a remote PTP peer's Delay_Req elicits the injection.\nAC:L - The defect is unconditional and deterministic — every CPU-injected frame on affected hardware passes the out-of-range value to the packing helper, requiring no race, no memory grooming, and no state the attacker cannot induce.\nPR:N - No credentials or privileges are required; an unauthenticated remote peer that causes the device to transmit a single frame out an ocelot port (PTP exchange, ARP, ping, forwarded traffic) reaches the code, and locally the path is the ordinary ndo_start_xmit with no capability check.\nUI:N - No victim action is needed — normal packet transmission, which the attacker can induce remotely, is sufficient to reach the faulty field encoding.\nS:U - The fault and its consequences stay within the kernel's own security authority on the affected host; no VM, IOMMU, or sandbox boundary is crossed.\nC:N - The injection frame header is a fixed 16-byte stack buffer written at compile-time-constant bit offsets, and the packing helper rejects/masks the oversized value, so no out-of-bounds read occurs and no kernel data is disclosed.\nI:N - No memory is corrupted and no attacker-controlled data is modified; the only altered state is a switch metadata field that was already zero before the offending commit, so there is no exploitable write or data-integrity loss.\nA:H - Each injected frame hits an unconditional WARN() (not WARN_ONCE) in the packing library, producing a stack dump per transmitted packet — this taints the kernel, floods the log and cripples throughput on embedded switch platforms, and panics outright on systems configured with panic_on_warn, all repeatable at will by a remote peer." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/mscc/ocelot.c" ], "versions": [ { "version": "06bcb9032e05ad717f9fd0a6e2fd3ae7f430fa31", "lessThan": "59c4ca8d8d7918eb6e2df91d2c254827264be309", "status": "affected", "versionType": "git" }, { "version": "ff7f554bbd75d5cbf00cded81d05147c6617e876", "lessThan": "2f3c62ffe88116cd2a39cd73e01103535599970f", "status": "affected", "versionType": "git" }, { "version": "e1b9e80236c540fa85d76e2d510d1b38e1968c5d", "lessThan": "a8836eae3288c351acd3b2743d2fad2a4ee2bd56", "status": "affected", "versionType": "git" }, { "version": "e1b9e80236c540fa85d76e2d510d1b38e1968c5d", "lessThan": "2d5df3a680ffdaf606baa10636bdb1daf757832e", "status": "affected", "versionType": "git" }, { "version": "be3a532167dd562ec38900c846e7ae6cc39aa2f1", "status": "affected", "versionType": "git" }, { "version": "6.1.107", "lessThan": "6.1.122", "status": "affected", "versionType": "semver" }, { "version": "6.6.48", "lessThan": "6.6.68", "status": "affected", "versionType": "semver" }, { "version": "6.10.7", "lessThan": "6.11", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/mscc/ocelot.c" ], "versions": [ { "version": "6.11", "status": "affected" }, { "version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.122", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.68", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.7", "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": "6.1.107", "versionEndExcluding": "6.1.122" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.48", "versionEndExcluding": "6.6.68" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.12.7" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10.7" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/59c4ca8d8d7918eb6e2df91d2c254827264be309" }, { "url": "https://git.kernel.org/stable/c/2f3c62ffe88116cd2a39cd73e01103535599970f" }, { "url": "https://git.kernel.org/stable/c/a8836eae3288c351acd3b2743d2fad2a4ee2bd56" }, { "url": "https://git.kernel.org/stable/c/2d5df3a680ffdaf606baa10636bdb1daf757832e" } ], "title": "net: mscc: ocelot: fix incorrect IFH SRC_PORT field in ocelot_ifh_set_basic()", "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-2024-56717", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T19:58:31.484052Z" } } } ], "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": "2025-10-01T20:07:06.591Z" } }, { "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": "2025-11-03T20:53:08.192Z" } } ] } }