{"id":"CVE-2026-98074","revision":"f562df9d74314192ba44e0f601a1ca51","records":[{"revision":"f562df9d74314192ba44e0f601a1ca51","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98074","aliases":[],"title":"bonding: do not clear curr_active_slave prematurely when releasing all slaves","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: do not clear curr_active_slave prematurely when releasing all slaves\n\nWhen releasing all slaves during bond destruction (all == true),\n__bond_release_one() unconditionally clears bond->curr_active_slave to\nNULL in every iteration.\n\nIf a backup slave is released before the active slave,\nbond_alb_deinit_slave() triggers rlb_teach_disabled_mac_on_primary(),\nwhich increments the active slave dev promiscuity counter and sets\nbond_info->primary_is_promisc = 1.\n\nBecause bond->curr_active_slave was prematurely cleared to NULL when\nreleasing the backup slave, the subsequent iteration releasing the active\nslave evaluates oldcurrent as NULL, so bond_change_active_slave(bond, NULL)\nis skipped. Consequently, bond_alb_handle_active_change() is never called\nto decrement the promiscuity counter, permanently leaking promiscuous\nmode on the physical device after bond teardown.\n\nWhen oldcurrent == slave, bond_change_active_slave(bond, NULL) already sets\nbond->curr_active_slave to NULL. We only need to avoid selecting a new\nactive slave when all == true. Replace the if (all) branch with\nif (!all && oldcurrent == slave).","state":0,"publishedAt":"2026-09-25T10:24:13.87+00:00","modifiedAt":"2026-10-19T09:13:23.911+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                        \"drivers/net/bonding/bond_main.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"0896341a44bf04bf6149d9307fe4686006f3eee1\",\n                            \"lessThan\": \"b1ded242135071769902778dbab081e3fc09730f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0896341a44bf04bf6149d9307fe4686006f3eee1\",\n                            \"lessThan\": \"e39b203ec9e73852098d41b26386172d51babeb9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0896341a44bf04bf6149d9307fe4686006f3eee1\",\n                            \"lessThan\": \"384739c631aa6749356ba062d6b7c9a484a733f6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0896341a44bf04bf6149d9307fe4686006f3eee1\",\n                            \"lessThan\": \"7b435c69a30b40efc642de98b9bfa95fcf2ad4f0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0896341a44bf04bf6149d9307fe4686006f3eee1\",\n                            \"lessThan\": \"d6ef22e79c2be3612868daede0e9a84f05439d9e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0896341a44bf04bf6149d9307fe4686006f3eee1\",\n                            \"lessThan\": \"19ba7ecfade159b3702c78a360fd7d971e2b7109\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0896341a44bf04bf6149d9307fe4686006f3eee1\",\n                            \"lessThan\": \"6d0ee411d5437f3d126ea6979acb83a8da29dc81\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0896341a44bf04bf6149d9307fe4686006f3eee1\",\n                            \"lessThan\": \"af602c7aa5fedc9be3043244017aef4f26c96b70\",\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                        \"drivers/net/bonding/bond_main.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.9\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.9\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.111\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.53\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.7\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/b1ded242135071769902778dbab081e3fc09730f","https://git.kernel.org/stable/c/e39b203ec9e73852098d41b26386172d51babeb9","https://git.kernel.org/stable/c/384739c631aa6749356ba062d6b7c9a484a733f6","https://git.kernel.org/stable/c/7b435c69a30b40efc642de98b9bfa95fcf2ad4f0","https://git.kernel.org/stable/c/d6ef22e79c2be3612868daede0e9a84f05439d9e","https://git.kernel.org/stable/c/19ba7ecfade159b3702c78a360fd7d971e2b7109","https://git.kernel.org/stable/c/6d0ee411d5437f3d126ea6979acb83a8da29dc81","https://git.kernel.org/stable/c/af602c7aa5fedc9be3043244017aef4f26c96b70"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98074","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98074","identifiers":["CVE-2026-98074"]},"retained":false,"historicalAffected":[]}],"coverage":[]}