{"id":"CVE-2026-72110","revision":"ae46f53439b744a88d9304acb74a05ad","records":[{"revision":"ae46f53439b744a88d9304acb74a05ad","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-72110","aliases":[],"title":"bpf,fork: wipe ->bpf_storage before bailouts that access it","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf,fork: wipe ->bpf_storage before bailouts that access it\n\nCurrently, copy_process() can bail out to free_task() before p->bpf_storage\nhas been initialized, with this call graph (shown here for the\n!CONFIG_MEMCG case):\n\ncopy_process\n  dup_task_struct\n    arch_dup_task_struct\n      [copies the entire task_struct, including ->bpf_storage member]\n  [RLIMIT_NPROC check fails]\n  delayed_free_task\n    free_task\n      bpf_task_storage_free\n        rcu_dereference(task->bpf_storage)\n        bpf_local_storage_destroy\n\nIn this case, the nascent task's ->bpf_storage member that\nbpf_local_storage_destroy() operates on is a plain copy of the parent's\n->bpf_storage pointer, not a real initialized pointer.\nThis leads to badness (kernel hangs, UAF).\n\nThis is reachable as long as the process calling fork() has been inserted\ninto a task storage map.","state":0,"publishedAt":"2026-08-15T05:52:51.805+00:00","modifiedAt":"2026-10-16T18:44:56.143+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                        \"kernel/fork.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"a10787e6d58c24b51e91c19c6d16c5da89fcaa4b\",\n                            \"lessThan\": \"7df67a4799067a59e6a2d53f8059a6be6e73e678\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a10787e6d58c24b51e91c19c6d16c5da89fcaa4b\",\n                            \"lessThan\": \"aff686efd38728e06daf12417a0d7ed454ce4cff\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a10787e6d58c24b51e91c19c6d16c5da89fcaa4b\",\n                            \"lessThan\": \"c3fd6f28c7ce1142a3b23dbb840eaa4777de1d74\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a10787e6d58c24b51e91c19c6d16c5da89fcaa4b\",\n                            \"lessThan\": \"9cff220ddb65b022cc668bb652200742476e744c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a10787e6d58c24b51e91c19c6d16c5da89fcaa4b\",\n                            \"lessThan\": \"c4f626ddf2350652ad2f79daf1f10847f3f6eabd\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a10787e6d58c24b51e91c19c6d16c5da89fcaa4b\",\n                            \"lessThan\": \"43f0005f81b8ce3be962d653cde8db9022f1e9b0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a10787e6d58c24b51e91c19c6d16c5da89fcaa4b\",\n                            \"lessThan\": \"9b51a6155d14389876916726430da30eabb1d4ed\",\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                        \"kernel/fork.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.13\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.13\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.217\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.184\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.145\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.97\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.40\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.5\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\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/7df67a4799067a59e6a2d53f8059a6be6e73e678","https://git.kernel.org/stable/c/aff686efd38728e06daf12417a0d7ed454ce4cff","https://git.kernel.org/stable/c/c3fd6f28c7ce1142a3b23dbb840eaa4777de1d74","https://git.kernel.org/stable/c/9cff220ddb65b022cc668bb652200742476e744c","https://git.kernel.org/stable/c/c4f626ddf2350652ad2f79daf1f10847f3f6eabd","https://git.kernel.org/stable/c/43f0005f81b8ce3be962d653cde8db9022f1e9b0","https://git.kernel.org/stable/c/9b51a6155d14389876916726430da30eabb1d4ed"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72110","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-72110","identifiers":["CVE-2026-72110"]},"retained":false,"historicalAffected":[]}],"coverage":[]}