cve-2024-58100
Vulnerability from cvelistv5
Published
2025-05-05 14:53
Modified
2025-05-09 08:06
Severity ?
EPSS score ?
Summary
bpf: check changes_pkt_data property for extension programs
References
{ "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "include/linux/bpf.h", "kernel/bpf/verifier.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "7197fc4acdf238ec8ad06de5a8235df0c1f9c7d7", "status": "affected", "version": "be8704ff07d2374bcc5c675526f95e70c6459683", "versionType": "git" }, { "lessThan": "3846e2bea565ee1c5195dcc625fda9868fb0e3b3", "status": "affected", "version": "be8704ff07d2374bcc5c675526f95e70c6459683", "versionType": "git" }, { "lessThan": "81f6d0530ba031b5f038a091619bf2ff29568852", "status": "affected", "version": "be8704ff07d2374bcc5c675526f95e70c6459683", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "include/linux/bpf.h", "kernel/bpf/verifier.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "status": "affected", "version": "5.6" }, { "lessThan": "5.6", "status": "unaffected", "version": "0", "versionType": "semver" }, { "lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.90", "versionType": "semver" }, { "lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.25", "versionType": "semver" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "6.13", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.6.90", "versionStartIncluding": "5.6", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.12.25", "versionStartIncluding": "5.6", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.13", "versionStartIncluding": "5.6", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "descriptions": [ { "lang": "en", "value": "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 --\u003e 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-\u003eops\n- prog-\u003eaux-\u003eattach_btf_trace\n- prog-\u003eaux-\u003eattach_func_name\n- prog-\u003eaux-\u003eattach_func_proto\n- prog-\u003eaux-\u003edst_trampoline\n- prog-\u003eaux-\u003emod\n- prog-\u003eaux-\u003esaved_dst_attach_type\n- prog-\u003eaux-\u003esaved_dst_prog_type\n- prog-\u003eexpected_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." } ], "providerMetadata": { "dateUpdated": "2025-05-09T08:06:09.147Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/7197fc4acdf238ec8ad06de5a8235df0c1f9c7d7" }, { "url": "https://git.kernel.org/stable/c/3846e2bea565ee1c5195dcc625fda9868fb0e3b3" }, { "url": "https://git.kernel.org/stable/c/81f6d0530ba031b5f038a091619bf2ff29568852" } ], "title": "bpf: check changes_pkt_data property for extension programs", "x_generator": { "engine": "bippy-1.2.0" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2024-58100", "datePublished": "2025-05-05T14:53:33.445Z", "dateReserved": "2025-03-06T15:52:09.189Z", "dateUpdated": "2025-05-09T08:06:09.147Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2024-58100\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-05T15:15:53.913\",\"lastModified\":\"2025-05-09T08:15:18.937\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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 --\u003e 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-\u003eops\\n- prog-\u003eaux-\u003eattach_btf_trace\\n- prog-\u003eaux-\u003eattach_func_name\\n- prog-\u003eaux-\u003eattach_func_proto\\n- prog-\u003eaux-\u003edst_trampoline\\n- prog-\u003eaux-\u003emod\\n- prog-\u003eaux-\u003esaved_dst_attach_type\\n- prog-\u003eaux-\u003esaved_dst_prog_type\\n- prog-\u003eexpected_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.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: comprobar la propiedad changes_pkt_data para programas de extensi\u00f3n Al procesar llamadas a subprogramas globales, el verificador decide si invalidar todos los punteros de paquete en el estado actual dependiendo de la propiedad changes_pkt_data del subprograma global. Debido a esto, un programa de extensi\u00f3n que reemplaza un subprograma global debe ser compatible con la propiedad changes_pkt_data del subprograma que se est\u00e1 reemplazando. Esta confirmaci\u00f3n: - a\u00f1ade el indicador changes_pkt_data a struct bpf_prog_aux: - este indicador se establece en check_cfg() para el subprograma principal; - en jit_subprogs() para otros subprogramas; - modifica bpf_check_attach_btf_id() para comprobar el indicador changes_pkt_data; - mueve la llamada a check_attach_btf_id() despu\u00e9s de la llamada a check_cfg(), porque necesita que se configure el indicador changes_pkt_data: bpf_check: ... ... - check_attach_btf_id resolve_pseudo_ldimm64 resolve_pseudo_ldimm64 --\u0026gt; bpf_prog_is_offloaded bpf_prog_is_offloaded check_cfg check_cfg + check_attach_btf_id ... ... Los siguientes campos se configuran mediante check_attach_btf_id(): - env-\u0026gt;ops - prog-\u0026gt;aux-\u0026gt;attach_btf_trace - prog-\u0026gt;aux-\u0026gt;attach_func_name - prog-\u0026gt;aux-\u0026gt;attach_func_proto - prog-\u0026gt;aux-\u0026gt;dst_trampoline - prog-\u0026gt;aux-\u0026gt;mod - prog-\u0026gt;aux-\u0026gt;saved_dst_attach_type - prog-\u0026gt;aux-\u0026gt;saved_dst_prog_type - prog-\u0026gt;expected_attach_type Ninguno de estos campos es utilizado por resolve_pseudo_ldimm64() o bpf_prog_offload_verifier_prep() (para los controladores netronome y netdevsim), por lo que el reordenamiento es seguro.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3846e2bea565ee1c5195dcc625fda9868fb0e3b3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7197fc4acdf238ec8ad06de5a8235df0c1f9c7d7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/81f6d0530ba031b5f038a091619bf2ff29568852\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}" } }
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