{"id":"CVE-2024-58100","revision":"ecaa8721a6584dbf8eda1d6b17c211ae","records":[{"revision":"ecaa8721a6584dbf8eda1d6b17c211ae","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-58100","aliases":[],"title":"bpf: check changes_pkt_data property for extension programs","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: check changes_pkt_data property for extension programs\n\nWhen processing calls to global sub-programs, verifier decides whether\nto invalidate all packet pointers in current state depending on the\nchanges_pkt_data property of the global sub-program.\n\nBecause of this, an extension program replacing a global sub-program\nmust be compatible with changes_pkt_data property of the sub-program\nbeing replaced.\n\nThis commit:\n- adds changes_pkt_data flag to struct bpf_prog_aux:\n  - this flag is set in check_cfg() for main sub-program;\n  - in jit_subprogs() for other sub-programs;\n- modifies bpf_check_attach_btf_id() to check changes_pkt_data flag;\n- moves call to check_attach_btf_id() after the call to check_cfg(),\n  because it needs changes_pkt_data flag to be set:\n\n    bpf_check:\n      ...                             ...\n    - check_attach_btf_id             resolve_pseudo_ldimm64\n      resolve_pseudo_ldimm64   -->    bpf_prog_is_offloaded\n      bpf_prog_is_offloaded           check_cfg\n      check_cfg                     + check_attach_btf_id\n      ...                             ...\n\nThe following fields are set by check_attach_btf_id():\n- env->ops\n- prog->aux->attach_btf_trace\n- prog->aux->attach_func_name\n- prog->aux->attach_func_proto\n- prog->aux->dst_trampoline\n- prog->aux->mod\n- prog->aux->saved_dst_attach_type\n- prog->aux->saved_dst_prog_type\n- prog->expected_attach_type\n\nNeither of these fields are used by resolve_pseudo_ldimm64() or\nbpf_prog_offload_verifier_prep() (for netronome and netdevsim\ndrivers), so the reordering is safe.","state":0,"publishedAt":"2025-05-05T14:53:33.445+00:00","modifiedAt":"2026-10-15T21:51:51.123+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"include/linux/bpf.h\",\n                        \"kernel/bpf/verifier.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"be8704ff07d2374bcc5c675526f95e70c6459683\",\n                            \"lessThan\": \"7197fc4acdf238ec8ad06de5a8235df0c1f9c7d7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"be8704ff07d2374bcc5c675526f95e70c6459683\",\n                            \"lessThan\": \"3846e2bea565ee1c5195dcc625fda9868fb0e3b3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"be8704ff07d2374bcc5c675526f95e70c6459683\",\n                            \"lessThan\": \"81f6d0530ba031b5f038a091619bf2ff29568852\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"include/linux/bpf.h\",\n                        \"kernel/bpf/verifier.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.6\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.90\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.25\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.13\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/7197fc4acdf238ec8ad06de5a8235df0c1f9c7d7","https://git.kernel.org/stable/c/3846e2bea565ee1c5195dcc625fda9868fb0e3b3","https://git.kernel.org/stable/c/81f6d0530ba031b5f038a091619bf2ff29568852"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-58100","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-58100","identifiers":["CVE-2024-58100"]},"retained":false,"historicalAffected":[]}],"coverage":[]}