{"id":"CVE-2026-97956","summary":"net: net_failover: Fix the deadlock in net_failover_slave_name_change()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: net_failover: Fix the deadlock in net_failover_slave_name_change()\n\nThis is a sibling fix of commit\nb84c5632c7b3 (\"net: net_failover: Fix the deadlock in slave register\").\nThere is netdev_lock_ops() in the upper callers, so using netif_open()\ninstead of dev_open().\n\nCall Trace:\n __schedule+0x2bb/0x650\n schedule+0x27/0xb0\n schedule_preempt_disabled+0x15/0x30\n __mutex_lock.constprop.0+0x550/0xaf0\n __mutex_lock_slowpath+0x13/0x20\n mutex_lock+0x3b/0x50\n dev_open+0x3b/0xe0\n net_failover_slave_name_change+0x22/0x40\n failover_event+0xd4/0x1e0\n notifier_call_chain+0x62/0xf0\n raw_notifier_call_chain+0x16/0x30\n call_netdevice_notifiers_info+0x50/0x80\n netif_change_name+0x200/0x330\n do_setlink.isra.0+0xb12/0xdf0\n ? security_capable+0x9a/0x1e0\n ? ns_capable+0x31/0x60\n rtnl_setlink+0x302/0x670\n ? netlink_recvmsg+0x296/0x340\n ? security_capable+0x9a/0x1e0\n ? __pfx_rtnl_setlink+0x10/0x10\n rtnetlink_rcv_msg+0x384/0x460\n ? __pfx_rtnetlink_rcv_msg+0x10/0x10\n netlink_rcv_skb+0x61/0x120\n rtnetlink_rcv+0x15/0x30\n netlink_unicast+0x28f/0x3c0\n netlink_sendmsg+0x216/0x450\n __sys_sendto+0x222/0x230\n __x64_sys_sendto+0x24/0x40\n x64_sys_call+0x1d5d/0x2390\n do_syscall_64+0x105/0x5a0\n ? do_syscall_64+0x140/0x5a0\n ? exc_page_fault+0x94/0x1e0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e","modified":"2026-09-26T03:48:41.930895263Z","published":"2026-09-25T10:23:02.560Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97956.json","cna_assigner":"Linux"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4b20e66d2e52d3628db4dccc1a33f134e73375d5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/985a663bf00799c1daf1c5789efa6406958780c8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c49bfa2c5dbd89f7683c26fc08b11e7369ea11e5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97956.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97956"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7e4d784f5810bba76c4593791028e13cce4af547"},{"fixed":"4b20e66d2e52d3628db4dccc1a33f134e73375d5"},{"fixed":"c49bfa2c5dbd89f7683c26fc08b11e7369ea11e5"},{"fixed":"985a663bf00799c1daf1c5789efa6406958780c8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97956.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.15.0"},{"fixed":"6.18.53"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97956.json"}}],"schema_version":"1.9.0"}