{"id":"DEBIAN-CVE-2026-23101","details":"In the Linux kernel, the following vulnerability has been resolved:  leds: led-class: Only Add LED to leds_list when it is fully ready  Before this change the LED was added to leds_list before led_init_core() gets called adding it the list before led_classdev.set_brightness_work gets initialized.  This leaves a window where led_trigger_register() of a LED's default trigger will call led_trigger_set() which calls led_set_brightness() which in turn will end up queueing the *uninitialized* led_classdev.set_brightness_work.  This race gets hit by the lenovo-thinkpad-t14s EC driver which registers 2 LEDs with a default trigger provided by snd_ctl_led.ko in quick succession. The first led_classdev_register() causes an async modprobe of snd_ctl_led to run and that async modprobe manages to exactly hit the window where the second LED is on the leds_list without led_init_core() being called for it, resulting in:   ------------[ cut here ]------------  WARNING: CPU: 11 PID: 5608 at kernel/workqueue.c:4234 __flush_work+0x344/0x390  Hardware name: LENOVO 21N2S01F0B/21N2S01F0B, BIOS N42ET93W (2.23 ) 09/01/2025  ...  Call trace:   __flush_work+0x344/0x390 (P)   flush_work+0x2c/0x50   led_trigger_set+0x1c8/0x340   led_trigger_register+0x17c/0x1c0   led_trigger_register_simple+0x84/0xe8   snd_ctl_led_init+0x40/0xf88 [snd_ctl_led]   do_one_initcall+0x5c/0x318   do_init_module+0x9c/0x2b8   load_module+0x7e0/0x998  Close the race window by moving the adding of the LED to leds_list to after the led_init_core() call.","modified":"2026-02-13T04:20:33.945881Z","published":"2026-02-04T17:16:20.977Z","upstream":["CVE-2026-23101"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-23101"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:11","purl":"pkg:deb/debian/linux?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.249-1"}]}],"versions":["5.10.103-1","5.10.103-1~bpo10+1","5.10.106-1","5.10.113-1","5.10.120-1","5.10.120-1~bpo10+1","5.10.127-1","5.10.127-2","5.10.127-2~bpo10+1","5.10.136-1","5.10.140-1","5.10.148-1","5.10.149-1","5.10.149-2","5.10.158-1","5.10.158-2","5.10.162-1","5.10.178-1","5.10.178-2","5.10.178-3","5.10.179-1","5.10.179-2","5.10.179-3","5.10.179-4","5.10.179-5","5.10.191-1","5.10.197-1","5.10.205-1","5.10.205-2","5.10.209-1","5.10.209-2","5.10.216-1","5.10.218-1","5.10.221-1","5.10.223-1","5.10.226-1","5.10.234-1","5.10.237-1","5.10.244-1","5.10.247-1","5.10.46-4","5.10.46-5","5.10.70-1","5.10.70-1~bpo10+1","5.10.84-1","5.10.92-1","5.10.92-1~bpo10+1","5.10.92-2"],"ecosystem_specific":{"urgency":"not 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