{"api_version":"1","generated_at":"2026-09-25T22:18:11+00:00","cve":"CVE-2026-98074","urls":{"html":"https://cve.report/CVE-2026-98074","api":"https://cve.report/api/cve/CVE-2026-98074.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98074","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98074"},"summary":{"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":"PUBLISHED","assigner":"Linux","published_at":"2026-09-25 11:17:36","updated_at":"2026-09-25 11:17:36"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/19ba7ecfade159b3702c78a360fd7d971e2b7109","name":"https://git.kernel.org/stable/c/19ba7ecfade159b3702c78a360fd7d971e2b7109","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d6ef22e79c2be3612868daede0e9a84f05439d9e","name":"https://git.kernel.org/stable/c/d6ef22e79c2be3612868daede0e9a84f05439d9e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/af602c7aa5fedc9be3043244017aef4f26c96b70","name":"https://git.kernel.org/stable/c/af602c7aa5fedc9be3043244017aef4f26c96b70","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6d0ee411d5437f3d126ea6979acb83a8da29dc81","name":"https://git.kernel.org/stable/c/6d0ee411d5437f3d126ea6979acb83a8da29dc81","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98074","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98074","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0896341a44bf04bf6149d9307fe4686006f3eee1 d6ef22e79c2be3612868daede0e9a84f05439d9e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0896341a44bf04bf6149d9307fe4686006f3eee1 19ba7ecfade159b3702c78a360fd7d971e2b7109 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0896341a44bf04bf6149d9307fe4686006f3eee1 6d0ee411d5437f3d126ea6979acb83a8da29dc81 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0896341a44bf04bf6149d9307fe4686006f3eee1 af602c7aa5fedc9be3043244017aef4f26c96b70 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.9","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.9 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.111 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.53 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.7 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/bonding/bond_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d6ef22e79c2be3612868daede0e9a84f05439d9e","status":"affected","version":"0896341a44bf04bf6149d9307fe4686006f3eee1","versionType":"git"},{"lessThan":"19ba7ecfade159b3702c78a360fd7d971e2b7109","status":"affected","version":"0896341a44bf04bf6149d9307fe4686006f3eee1","versionType":"git"},{"lessThan":"6d0ee411d5437f3d126ea6979acb83a8da29dc81","status":"affected","version":"0896341a44bf04bf6149d9307fe4686006f3eee1","versionType":"git"},{"lessThan":"af602c7aa5fedc9be3043244017aef4f26c96b70","status":"affected","version":"0896341a44bf04bf6149d9307fe4686006f3eee1","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/bonding/bond_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.9"},{"lessThan":"3.9","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.111","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.53","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.111","versionStartIncluding":"3.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.53","versionStartIncluding":"3.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.7","versionStartIncluding":"3.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc2","versionStartIncluding":"3.9","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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)."}],"providerMetadata":{"dateUpdated":"2026-09-25T10:24:13.870Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/d6ef22e79c2be3612868daede0e9a84f05439d9e"},{"url":"https://git.kernel.org/stable/c/19ba7ecfade159b3702c78a360fd7d971e2b7109"},{"url":"https://git.kernel.org/stable/c/6d0ee411d5437f3d126ea6979acb83a8da29dc81"},{"url":"https://git.kernel.org/stable/c/af602c7aa5fedc9be3043244017aef4f26c96b70"}],"title":"bonding: do not clear curr_active_slave prematurely when releasing all slaves","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98074","datePublished":"2026-09-25T10:24:13.870Z","dateReserved":"2026-09-25T10:19:56.074Z","dateUpdated":"2026-09-25T10:24:13.870Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-25 11:17:36","lastModifiedDate":"2026-09-25 11:17:36","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98074","Ordinal":"1","Title":"bonding: do not clear curr_active_slave prematurely when releasi","CVE":"CVE-2026-98074","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98074","Ordinal":"1","NoteData":"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).","Type":"Description","Title":"bonding: do not clear curr_active_slave prematurely when releasi"}]}}}