{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-40281", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.184Z", "datePublished": "2025-12-06T21:51:05.208Z", "dateUpdated": "2026-06-16T19:35:40.210Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:46:18.993Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: prevent possible shift-out-of-bounds in sctp_transport_update_rto\n\nsyzbot reported a possible shift-out-of-bounds [1]\n\nBlamed commit added rto_alpha_max and rto_beta_max set to 1000.\n\nIt is unclear if some sctp users are setting very large rto_alpha\nand/or rto_beta.\n\nIn order to prevent user regression, perform the test at run time.\n\nAlso add READ_ONCE() annotations as sysctl values can change under us.\n\n[1]\n\nUBSAN: shift-out-of-bounds in net/sctp/transport.c:509:41\nshift exponent 64 is too large for 32-bit type 'unsigned int'\nCPU: 0 UID: 0 PID: 16704 Comm: syz.2.2320 Not tainted syzkaller #0 PREEMPT(full)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025\nCall Trace:\n \n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120\n ubsan_epilogue lib/ubsan.c:233 [inline]\n __ubsan_handle_shift_out_of_bounds+0x27f/0x420 lib/ubsan.c:494\n sctp_transport_update_rto.cold+0x1c/0x34b net/sctp/transport.c:509\n sctp_check_transmitted+0x11c4/0x1c30 net/sctp/outqueue.c:1502\n sctp_outq_sack+0x4ef/0x1b20 net/sctp/outqueue.c:1338\n sctp_cmd_process_sack net/sctp/sm_sideeffect.c:840 [inline]\n sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1372 [inline]" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/sctp/transport.c" ], "versions": [ { "version": "b58537a1f5629bdc98a8b9dc2051ce0e952f6b4b", "lessThan": "0e0413e3315199b23ff4aec295e256034cd0a6e4", "status": "affected", "versionType": "git" }, { "version": "b58537a1f5629bdc98a8b9dc2051ce0e952f6b4b", "lessThan": "834e65be429c0fa4f9bb5945064bd57f18ed2187", "status": "affected", "versionType": "git" }, { "version": "b58537a1f5629bdc98a8b9dc2051ce0e952f6b4b", "lessThan": "abb086b9a95d0ed3b757ee59964ba3c4e4b2fc1a", "status": "affected", "versionType": "git" }, { "version": "b58537a1f5629bdc98a8b9dc2051ce0e952f6b4b", "lessThan": "d0d858652834dcf531342c82a0428170aa7c2675", "status": "affected", "versionType": "git" }, { "version": "b58537a1f5629bdc98a8b9dc2051ce0e952f6b4b", "lessThan": "ed71f801249d2350c77a73dca2c03918a15a62fe", "status": "affected", "versionType": "git" }, { "version": "b58537a1f5629bdc98a8b9dc2051ce0e952f6b4b", "lessThan": "1cfa4eac275cc4875755c1303d48a4ddfe507ca8", "status": "affected", "versionType": "git" }, { "version": "b58537a1f5629bdc98a8b9dc2051ce0e952f6b4b", "lessThan": "aaba523dd7b6106526c24b1fd9b5fc35e5aaa88d", "status": "affected", "versionType": "git" }, { "version": "b58537a1f5629bdc98a8b9dc2051ce0e952f6b4b", "lessThan": "1534ff77757e44bcc4b98d0196bc5c0052fce5fa", "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/sctp/transport.c" ], "versions": [ { "version": "3.16", "status": "affected" }, { "version": "0", "lessThan": "3.16", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.302", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.247", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.197", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.159", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.117", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.59", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.17.9", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18", "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": "3.16", "versionEndExcluding": "5.4.302" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "5.10.247" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "5.15.197" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "6.1.159" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "6.6.117" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "6.12.59" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "6.17.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "6.18" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/0e0413e3315199b23ff4aec295e256034cd0a6e4" }, { "url": "https://git.kernel.org/stable/c/834e65be429c0fa4f9bb5945064bd57f18ed2187" }, { "url": "https://git.kernel.org/stable/c/abb086b9a95d0ed3b757ee59964ba3c4e4b2fc1a" }, { "url": "https://git.kernel.org/stable/c/d0d858652834dcf531342c82a0428170aa7c2675" }, { "url": "https://git.kernel.org/stable/c/ed71f801249d2350c77a73dca2c03918a15a62fe" }, { "url": "https://git.kernel.org/stable/c/1cfa4eac275cc4875755c1303d48a4ddfe507ca8" }, { "url": "https://git.kernel.org/stable/c/aaba523dd7b6106526c24b1fd9b5fc35e5aaa88d" }, { "url": "https://git.kernel.org/stable/c/1534ff77757e44bcc4b98d0196bc5c0052fce5fa" } ], "title": "sctp: prevent possible shift-out-of-bounds in sctp_transport_update_rto", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-06-02T13:00:20.868Z" }, "affected": [ { "vendor": "Siemens", "product": "RUGGEDCOM RST2428P", "versions": [ { "status": "affected", "version": "0", "lessThan": "V4.0", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-253495.html" } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-06-16T19:35:24.390907Z", "id": "CVE-2025-40281", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-16T19:35:40.210Z" } } ] } }