{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-35894","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-17T13:50:33.113Z","datePublished":"2024-05-19T08:34:49.504Z","dateUpdated":"2025-05-04T09:07:48.617Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T09:07:48.617Z"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mptcp/sockopt.c"],"versions":[{"version":"124a4885b55f3039c697feb53edc5ad88bf21161","lessThan":"ee3c845787b621cfe82c2e52c513024a9d7a78f5","status":"affected","versionType":"git"},{"version":"5684ab1a0effbfeb706f47d85785f653005b97b1","lessThan":"3ffb1ab698376f09cc33101c07c1be229389fe29","status":"affected","versionType":"git"},{"version":"5684ab1a0effbfeb706f47d85785f653005b97b1","lessThan":"fcf4692fa39e86a590c14a4af2de704e1d20a3b5","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/mptcp/sockopt.c"],"versions":[{"version":"6.7","status":"affected"},{"version":"0","lessThan":"6.7","status":"unaffected","versionType":"semver"},{"version":"6.8.5","lessThanOrEqual":"6.8.*","status":"unaffected","versionType":"semver"},{"version":"6.9","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":"6.7","versionEndExcluding":"6.8.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.9"}]}]}],"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"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-35894","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-05-23T17:19:11.932851Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:34:48.035Z"}},{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/3ffb1ab698376f09cc33101c07c1be229389fe29","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/fcf4692fa39e86a590c14a4af2de704e1d20a3b5","tags":["x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20250321-0002/"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-03-21T18:03:47.343Z"}}]}}