{"api_version":"1","generated_at":"2026-09-24T23:02:39+00:00","cve":"CVE-2024-35894","urls":{"html":"https://cve.report/CVE-2024-35894","api":"https://cve.report/api/cve/CVE-2024-35894.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2024-35894","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-35894"},"summary":{"title":"mptcp: prevent BPF accessing lowat from a subflow socket.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: prevent BPF accessing lowat from a subflow socket.\n\nAlexei reported the following splat:\n\n WARNING: CPU: 32 PID: 3276 at net/mptcp/subflow.c:1430 subflow_data_ready+0x147/0x1c0\n Modules linked in: dummy bpf_testmod(O) [last unloaded: bpf_test_no_cfi(O)]\n CPU: 32 PID: 3276 Comm: test_progs Tainted: GO       6.8.0-12873-g2c43c33bfd23\n Call Trace:\n  <TASK>\n  mptcp_set_rcvlowat+0x79/0x1d0\n  sk_setsockopt+0x6c0/0x1540\n  __bpf_setsockopt+0x6f/0x90\n  bpf_sock_ops_setsockopt+0x3c/0x90\n  bpf_prog_509ce5db2c7f9981_bpf_test_sockopt_int+0xb4/0x11b\n  bpf_prog_dce07e362d941d2b_bpf_test_socket_sockopt+0x12b/0x132\n  bpf_prog_348c9b5faaf10092_skops_sockopt+0x954/0xe86\n  __cgroup_bpf_run_filter_sock_ops+0xbc/0x250\n  tcp_connect+0x879/0x1160\n  tcp_v6_connect+0x50c/0x870\n  mptcp_connect+0x129/0x280\n  __inet_stream_connect+0xce/0x370\n  inet_stream_connect+0x36/0x50\n  bpf_trampoline_6442491565+0x49/0xef\n  inet_stream_connect+0x5/0x50\n  __sys_connect+0x63/0x90\n  __x64_sys_connect+0x14/0x20\n\nThe root cause of the issue is that bpf allows accessing mptcp-level\nproto_ops from a tcp subflow scope.\n\nFix the issue detecting the problematic call and preventing any action.","state":"PUBLISHED","assigner":"Linux","published_at":"2024-05-19 09:15:10","updated_at":"2026-08-04 11:18:07"},"problem_types":["NVD-CWE-noinfo"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://security.netapp.com/advisory/ntap-20250321-0002/","name":"https://security.netapp.com/advisory/ntap-20250321-0002/","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ee3c845787b621cfe82c2e52c513024a9d7a78f5","name":"https://git.kernel.org/stable/c/ee3c845787b621cfe82c2e52c513024a9d7a78f5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3ffb1ab698376f09cc33101c07c1be229389fe29","name":"https://git.kernel.org/stable/c/3ffb1ab698376f09cc33101c07c1be229389fe29","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fcf4692fa39e86a590c14a4af2de704e1d20a3b5","name":"https://git.kernel.org/stable/c/fcf4692fa39e86a590c14a4af2de704e1d20a3b5","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-35894","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-35894","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 124a4885b55f3039c697feb53edc5ad88bf21161 ee3c845787b621cfe82c2e52c513024a9d7a78f5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5684ab1a0effbfeb706f47d85785f653005b97b1 3ffb1ab698376f09cc33101c07c1be229389fe29 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5684ab1a0effbfeb706f47d85785f653005b97b1 fcf4692fa39e86a590c14a4af2de704e1d20a3b5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.7","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.7 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the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: prevent BPF accessing lowat from a subflow socket.\n\nAlexei reported the following splat:\n\n WARNING: CPU: 32 PID: 3276 at net/mptcp/subflow.c:1430 subflow_data_ready+0x147/0x1c0\n Modules linked in: dummy bpf_testmod(O) [last unloaded: bpf_test_no_cfi(O)]\n CPU: 32 PID: 3276 Comm: test_progs Tainted: GO       6.8.0-12873-g2c43c33bfd23\n Call Trace:\n  <TASK>\n  mptcp_set_rcvlowat+0x79/0x1d0\n  sk_setsockopt+0x6c0/0x1540\n  __bpf_setsockopt+0x6f/0x90\n  bpf_sock_ops_setsockopt+0x3c/0x90\n  bpf_prog_509ce5db2c7f9981_bpf_test_sockopt_int+0xb4/0x11b\n  bpf_prog_dce07e362d941d2b_bpf_test_socket_sockopt+0x12b/0x132\n  bpf_prog_348c9b5faaf10092_skops_sockopt+0x954/0xe86\n  __cgroup_bpf_run_filter_sock_ops+0xbc/0x250\n  tcp_connect+0x879/0x1160\n  tcp_v6_connect+0x50c/0x870\n  mptcp_connect+0x129/0x280\n  __inet_stream_connect+0xce/0x370\n  inet_stream_connect+0x36/0x50\n  bpf_trampoline_6442491565+0x49/0xef\n  inet_stream_connect+0x5/0x50\n  __sys_connect+0x63/0x90\n  __x64_sys_connect+0x14/0x20\n\nThe root cause of the issue is that bpf allows accessing mptcp-level\nproto_ops from a tcp subflow scope.\n\nFix the issue detecting the problematic call and preventing any action."}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-08-04T09:23:42.835Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/ee3c845787b621cfe82c2e52c513024a9d7a78f5"},{"url":"https://git.kernel.org/stable/c/3ffb1ab698376f09cc33101c07c1be229389fe29"},{"url":"https://git.kernel.org/stable/c/fcf4692fa39e86a590c14a4af2de704e1d20a3b5"}],"title":"mptcp: prevent BPF accessing lowat from a subflow socket.","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2024-35894","datePublished":"2024-05-19T08:34:49.504Z","dateReserved":"2024-05-17T13:50:33.113Z","dateUpdated":"2026-08-04T09:23:42.835Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2024-05-19 09:15:10","lastModifiedDate":"2026-08-04 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Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.8.5","matchCriteriaId":"DBD6C99E-4250-4DFE-8447-FF2075939D10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*","matchCriteriaId":"22BEDD49-2C6D-402D-9DBF-6646F6ECD10B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*","matchCriteriaId":"DF73CB2A-DFFD-46FB-9BFE-AA394F27EA37"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2024","CveId":"35894","Ordinal":"1","Title":"mptcp: prevent BPF accessing lowat from a subflow socket.","CVE":"CVE-2024-35894","Year":"2024"},"notes":[{"CveYear":"2024","CveId":"35894","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: prevent BPF accessing lowat from a subflow socket.\n\nAlexei reported the following splat:\n\n WARNING: CPU: 32 PID: 3276 at net/mptcp/subflow.c:1430 subflow_data_ready+0x147/0x1c0\n Modules linked in: dummy bpf_testmod(O) [last unloaded: bpf_test_no_cfi(O)]\n CPU: 32 PID: 3276 Comm: test_progs Tainted: GO       6.8.0-12873-g2c43c33bfd23\n Call Trace:\n  <TASK>\n  mptcp_set_rcvlowat+0x79/0x1d0\n  sk_setsockopt+0x6c0/0x1540\n  __bpf_setsockopt+0x6f/0x90\n  bpf_sock_ops_setsockopt+0x3c/0x90\n  bpf_prog_509ce5db2c7f9981_bpf_test_sockopt_int+0xb4/0x11b\n  bpf_prog_dce07e362d941d2b_bpf_test_socket_sockopt+0x12b/0x132\n  bpf_prog_348c9b5faaf10092_skops_sockopt+0x954/0xe86\n  __cgroup_bpf_run_filter_sock_ops+0xbc/0x250\n  tcp_connect+0x879/0x1160\n  tcp_v6_connect+0x50c/0x870\n  mptcp_connect+0x129/0x280\n  __inet_stream_connect+0xce/0x370\n  inet_stream_connect+0x36/0x50\n  bpf_trampoline_6442491565+0x49/0xef\n  inet_stream_connect+0x5/0x50\n  __sys_connect+0x63/0x90\n  __x64_sys_connect+0x14/0x20\n\nThe root cause of the issue is that bpf allows accessing mptcp-level\nproto_ops from a tcp subflow scope.\n\nFix the issue detecting the problematic call and preventing any action.","Type":"Description","Title":"mptcp: prevent BPF accessing lowat from a subflow socket."}]}}}