{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T01:06:59.447","vulnerabilities":[{"cve":{"id":"CVE-2026-23101","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2026-02-04T17:16:20.977","lastModified":"2026-03-19T19:33:02.937","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nleds: led-class: Only Add LED to leds_list when it is fully ready\n\nBefore this change the LED was added to leds_list before led_init_core()\ngets called adding it the list before led_classdev.set_brightness_work gets\ninitialized.\n\nThis leaves a window where led_trigger_register() of a LED's default\ntrigger will call led_trigger_set() which calls led_set_brightness()\nwhich in turn will end up queueing the *uninitialized*\nled_classdev.set_brightness_work.\n\nThis race gets hit by the lenovo-thinkpad-t14s EC driver which registers\n2 LEDs with a default trigger provided by snd_ctl_led.ko in quick\nsuccession. The first led_classdev_register() causes an async modprobe of\nsnd_ctl_led to run and that async modprobe manages to exactly hit\nthe window where the second LED is on the leds_list without led_init_core()\nbeing called for it, resulting in:\n\n ------------[ cut here ]------------\n WARNING: CPU: 11 PID: 5608 at kernel/workqueue.c:4234 __flush_work+0x344/0x390\n Hardware name: LENOVO 21N2S01F0B/21N2S01F0B, BIOS N42ET93W (2.23 ) 09/01/2025\n ...\n Call trace:\n  __flush_work+0x344/0x390 (P)\n  flush_work+0x2c/0x50\n  led_trigger_set+0x1c8/0x340\n  led_trigger_register+0x17c/0x1c0\n  led_trigger_register_simple+0x84/0xe8\n  snd_ctl_led_init+0x40/0xf88 [snd_ctl_led]\n  do_one_initcall+0x5c/0x318\n  do_init_module+0x9c/0x2b8\n  load_module+0x7e0/0x998\n\nClose the race window by moving the adding of the LED to leds_list to\nafter the led_init_core() call."},{"lang":"es","value":"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nleds: led-class: Solo añadir el LED a leds_list cuando esté completamente listo\n\nAntes de este cambio, el LED se añadía a leds_list antes de que se llamara a led_init_core(), añadiéndolo a la lista antes de que se inicializara led_classdev.set_brightness_work.\n\nEsto deja una ventana donde led_trigger_register() del disparador predeterminado de un LED llamará a led_trigger_set(), que llama a led_set_brightness(), lo que a su vez terminará encolando el led_classdev.set_brightness_work *no inicializado*.\n\nEsta condición de carrera es activada por el controlador EC de lenovo-thinkpad-t14s, que registra 2 LEDs con un disparador predeterminado proporcionado por snd_ctl_led.ko en rápida sucesión. La primera llamada a led_classdev_register() provoca la ejecución de un modprobe asíncrono de snd_ctl_led y ese modprobe asíncrono logra alcanzar exactamente la ventana donde el segundo LED está en leds_list sin que se haya llamado a led_init_core() para él, resultando en:\n\n ------------[ cut here ]------------\n ADVERTENCIA: CPU: 11 PID: 5608 at kernel/workqueue.c:4234 __flush_work+0x344/0x390\n Hardware name: LENOVO 21N2S01F0B/21N2S01F0B, BIOS N42ET93W (2.23 ) 09/01/2025\n ...\n Rastreo de llamadas:\n  __flush_work+0x344/0x390 (P)\n  flush_work+0x2c/0x50\n  led_trigger_set+0x1c8/0x340\n  led_trigger_register+0x17c/0x1c0\n  led_trigger_register_simple+0x84/0xe8\n  snd_ctl_led_init+0x40/0xf88 [snd_ctl_led]\n  do_one_initcall+0x5c/0x318\n  do_init_module+0x9c/0x2b8\n  load_module+0x7e0/0x998\n\nCerrar la ventana de la condición de carrera moviendo la adición del LED a leds_list a después de la llamada a led_init_core()."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":4.7,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.0,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-908"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"5.10.249","matchCriteriaId":"3426920A-E477-43B8-9E72-5B245C924157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.199","matchCriteriaId":"A247FBA6-BEB9-484F-B892-DD5517949CCD"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.162","matchCriteriaId":"6579E0D4-0641-479D-A4C3-0EF618798C55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.122","matchCriteriaId":"8EAAE395-0162-4BAF-9AD5-E9AF3C869C4F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.68","matchCriteriaId":"52F38E19-0FDD-4992-9D6D-D4169D689598"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.8","matchCriteriaId":"E65C6E79-7EBE-4C77-93F0-818CF5B38F4E"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*","matchCriteriaId":"17B67AA7-40D6-4AFA-8459-F200F3D7CFD1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*","matchCriteriaId":"C47E4CC9-C826-4FA9-B014-7FE3D9B318B2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*","matchCriteriaId":"F71D92C0-C023-48BD-B3B6-70B638EEE298"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*","matchCriteriaId":"13580667-0A98-40CC-B29F-D12790B91BDB"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*","matchCriteriaId":"CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*","matchCriteriaId":"3EF854A1-ABB1-4E93-BE9A-44569EC76C0D"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2757f7748ce2d0fa44112024907bafb37e104d6e","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/78822628165f3d817382f67f91129161159ca234","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/d117fdcb21b05c0e0460261d017b92303cd9ba77","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/d1883cefd31752f0504b94c3bcfa1f6d511d6e87","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/da565bf98c9ad0eabcb09fc97859e0b52f98b7c3","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/e90c861411fc84629a240384b0a72830539d3386","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/f7a6df659af777058833802c29b3b7974db5e78a","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}