{"id":"CVE-2026-98074","title":"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() unc…","summary":"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() unc…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 0896341a44bf04bf6149d9307fe4686006f3eee1 < d6ef22e79c2be3612868daede0e9a84f05439d9e","Linux >= 0896341a44bf04bf6149d9307fe4686006f3eee1 < 19ba7ecfade159b3702c78a360fd7d971e2b7109","Linux >= 0896341a44bf04bf6149d9307fe4686006f3eee1 < 6d0ee411d5437f3d126ea6979acb83a8da29dc81","Linux >= 0896341a44bf04bf6149d9307fe4686006f3eee1 < af602c7aa5fedc9be3043244017aef4f26c96b70","Linux 3.9"],"published":"2026-09-25","updated":"2026-09-25","sourceUpdated":"2026-09-25T11:17:36.730","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98074","references":[{"url":"https://git.kernel.org/stable/c/19ba7ecfade159b3702c78a360fd7d971e2b7109","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6d0ee411d5437f3d126ea6979acb83a8da29dc81","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/af602c7aa5fedc9be3043244017aef4f26c96b70","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d6ef22e79c2be3612868daede0e9a84f05439d9e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-25T11:06:38.839Z","slug":"CVE-2026-98074","body":"## Overview\n\nIn 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).\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}