{"id":"DEBIAN-CVE-2025-39796","details":"In the Linux kernel, the following vulnerability has been resolved:  net: lapbether: ignore ops-locked netdevs  Syzkaller managed to trigger lock dependency in xsk_notify via register_netdevice. As discussed in [0], using register_netdevice in the notifiers is problematic so skip adding lapbeth for ops-locked devices.         xsk_notifier+0xa4/0x280 net/xdp/xsk.c:1645        notifier_call_chain+0xbc/0x410 kernel/notifier.c:85        call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2230        call_netdevice_notifiers_extack net/core/dev.c:2268 [inline]        call_netdevice_notifiers net/core/dev.c:2282 [inline]        unregister_netdevice_many_notify+0xf9d/0x2700 net/core/dev.c:12077        unregister_netdevice_many net/core/dev.c:12140 [inline]        unregister_netdevice_queue+0x305/0x3f0 net/core/dev.c:11984        register_netdevice+0x18f1/0x2270 net/core/dev.c:11149        lapbeth_new_device drivers/net/wan/lapbether.c:420 [inline]        lapbeth_device_event+0x5b1/0xbe0 drivers/net/wan/lapbether.c:462        notifier_call_chain+0xbc/0x410 kernel/notifier.c:85        call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2230        call_netdevice_notifiers_extack net/core/dev.c:2268 [inline]        call_netdevice_notifiers net/core/dev.c:2282 [inline]        __dev_notify_flags+0x12c/0x2e0 net/core/dev.c:9497        netif_change_flags+0x108/0x160 net/core/dev.c:9526        dev_change_flags+0xba/0x250 net/core/dev_api.c:68        devinet_ioctl+0x11d5/0x1f50 net/ipv4/devinet.c:1200        inet_ioctl+0x3a7/0x3f0 net/ipv4/af_inet.c:1001  0: https://lore.kernel.org/netdev/20250625140357.6203d0af@kernel.org/","modified":"2026-09-01T20:05:50.272562770Z","published":"2025-09-12T16:15:33.987Z","upstream":["CVE-2025-39796"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-39796"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.16.3-1"}]}],"versions":["6.12.100-1","6.12.101-1","6.12.105-1","6.12.107-1","6.12.38-1","6.12.41-1","6.12.43-1","6.12.43-1~bpo12+1","6.12.48-1","6.12.57-1","6.12.57-1~bpo12+1","6.12.63-1","6.12.63-1~bpo12+1","6.12.69-1","6.12.69-1~bpo12+1","6.12.73-1","6.12.73-1~bpo12+1","6.12.74-1","6.12.74-2","6.12.74-2~bpo12+1","6.12.85-1","6.12.85-1~bpo12+1","6.12.86-1","6.12.86-1~bpo12+1","6.12.88-1","6.12.88-1~bpo12+1","6.12.90-1","6.12.90-1~bpo12+1","6.12.90-2","6.12.90-2~bpo12+1","6.12.94-1","6.12.94-1~bpo12+1","6.12.95-1","6.12.95-1~bpo12+1","6.12.96-1","6.13.10-1~exp1","6.13.11-1~exp1","6.13.2-1~exp1","6.13.3-1~exp1","6.13.4-1~exp1","6.13.5-1~exp1","6.13.6-1~exp1","6.13.7-1~exp1","6.13.8-1~exp1","6.13.9-1~exp1","6.13~rc6-1~exp1","6.13~rc7-1~exp1","6.14.3-1~exp1","6.14.5-1~exp1","6.14.6-1~exp1","6.15-1~exp1","6.15.1-1~exp1","6.15.2-1~exp1","6.15.3-1~exp1","6.15.4-1~exp1","6.15.5-1~exp1","6.15.6-1~exp1","6.15~rc7-1~exp1","6.16-1~exp1","6.16.1-1~exp1","6.16.3-1~bpo13+1","6.16~rc7-1~exp1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-39796.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}