{"id":"DEBIAN-CVE-2026-43479","details":"In the Linux kernel, the following vulnerability has been resolved:  net: usb: lan78xx: fix WARN in __netif_napi_del_locked on disconnect  Remove redundant netif_napi_del() call from disconnect path.  A WARN may be triggered in __netif_napi_del_locked() during USB device disconnect:    WARNING: CPU: 0 PID: 11 at net/core/dev.c:7417 __netif_napi_del_locked+0x2b4/0x350  This happens because netif_napi_del() is called in the disconnect path while NAPI is still enabled. However, it is not necessary to call netif_napi_del() explicitly, since unregister_netdev() will handle NAPI teardown automatically and safely. Removing the redundant call avoids triggering the warning.  Full trace:  lan78xx 1-1:1.0 enu1: Failed to read register index 0x000000c4. ret = -ENODEV  lan78xx 1-1:1.0 enu1: Failed to set MAC down with error -ENODEV  lan78xx 1-1:1.0 enu1: Link is Down  lan78xx 1-1:1.0 enu1: Failed to read register index 0x00000120. ret = -ENODEV  ------------[ cut here ]------------  WARNING: CPU: 0 PID: 11 at net/core/dev.c:7417 __netif_napi_del_locked+0x2b4/0x350  Modules linked in: flexcan can_dev fuse  CPU: 0 UID: 0 PID: 11 Comm: kworker/0:1 Not tainted 6.16.0-rc2-00624-ge926949dab03 #9 PREEMPT  Hardware name: SKOV IMX8MP CPU revC - bd500 (DT)  Workqueue: usb_hub_wq hub_event  pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)  pc : __netif_napi_del_locked+0x2b4/0x350  lr : __netif_napi_del_locked+0x7c/0x350  sp : ffffffc085b673c0  x29: ffffffc085b673c0 x28: ffffff800b7f2000 x27: ffffff800b7f20d8  x26: ffffff80110bcf58 x25: ffffff80110bd978 x24: 1ffffff0022179eb  x23: ffffff80110bc000 x22: ffffff800b7f5000 x21: ffffff80110bc000  x20: ffffff80110bcf38 x19: ffffff80110bcf28 x18: dfffffc000000000  x17: ffffffc081578940 x16: ffffffc08284cee0 x15: 0000000000000028  x14: 0000000000000006 x13: 0000000000040000 x12: ffffffb0022179e8  x11: 1ffffff0022179e7 x10: ffffffb0022179e7 x9 : dfffffc000000000  x8 : 0000004ffdde8619 x7 : ffffff80110bcf3f x6 : 0000000000000001  x5 : ffffff80110bcf38 x4 : ffffff80110bcf38 x3 : 0000000000000000  x2 : 0000000000000000 x1 : 1ffffff0022179e7 x0 : 0000000000000000  Call trace:   __netif_napi_del_locked+0x2b4/0x350 (P)   lan78xx_disconnect+0xf4/0x360   usb_unbind_interface+0x158/0x718   device_remove+0x100/0x150   device_release_driver_internal+0x308/0x478   device_release_driver+0x1c/0x30   bus_remove_device+0x1a8/0x368   device_del+0x2e0/0x7b0   usb_disable_device+0x244/0x540   usb_disconnect+0x220/0x758   hub_event+0x105c/0x35e0   process_one_work+0x760/0x17b0   worker_thread+0x768/0xce8   kthread+0x3bc/0x690   ret_from_fork+0x10/0x20  irq event stamp: 211604  hardirqs last  enabled at (211603): [\u003cffffffc0828cc9ec\u003e] _raw_spin_unlock_irqrestore+0x84/0x98  hardirqs last disabled at (211604): [\u003cffffffc0828a9a84\u003e] el1_dbg+0x24/0x80  softirqs last  enabled at (211296): [\u003cffffffc080095f10\u003e] handle_softirqs+0x820/0xbc8  softirqs last disabled at (210993): [\u003cffffffc080010288\u003e] __do_softirq+0x18/0x20  ---[ end trace 0000000000000000 ]---  lan78xx 1-1:1.0 enu1: failed to kill vid 0081/0","modified":"2026-09-14T17:03:39.156921641Z","published":"2026-05-13T16:16:51.040Z","upstream":["CVE-2026-43479"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-43479"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.19.10-1"}]}],"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","6.16.10-1","6.16.11-1","6.16.12-1","6.16.12-1~bpo13+1","6.16.12-2","6.16.3-1","6.16.3-1~bpo13+1","6.16.5-1","6.16.6-1","6.16.7-1","6.16.8-1","6.16.9-1","6.16~rc7-1~exp1","6.17.10-1","6.17.11-1","6.17.12-1","6.17.13-1","6.17.13-1~bpo13+1","6.17.2-1~exp1","6.17.5-1~exp1","6.17.6-1","6.17.7-1","6.17.7-2","6.17.8-1","6.17.8-1~bpo13+1","6.17.9-1","6.18.1-1~exp1","6.18.10-1","6.18.12-1","6.18.12-1~bpo13+1","6.18.13-1","6.18.14-1","6.18.15-1","6.18.15-1~bpo13+1","6.18.2-1~exp1","6.18.3-1","6.18.5-1","6.18.5-1~bpo13+1","6.18.8-1","6.18.9-1","6.18.9-1~bpo13+1","6.18~rc4-1~exp1","6.18~rc4-1~exp2","6.18~rc5-1~exp1","6.18~rc6-1~exp1","6.18~rc7-1~exp1","6.19-1~exp1","6.19.10-1~bpo13+1","6.19.2-1~exp1","6.19.3-1~exp1","6.19.4-1~exp1","6.19.5-1~exp1","6.19.6-1","6.19.6-2","6.19.6-2~bpo13+1","6.19.8-1","6.19.8-1~bpo13+1","6.19~rc4-1~exp1","6.19~rc5-1~exp1","6.19~rc6-1~exp1","6.19~rc7-1~exp1","6.19~rc8-1~exp1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-43479.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:N/I:N/A:H"}]}