CVE-2025-37968
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
iio: light: opt3001: fix deadlock due to concurrent flag access
The threaded IRQ function in this driver is reading the flag twice: once to lock a mutex and once to unlock it. Even though the code setting the flag is designed to prevent it, there are subtle cases where the flag could be true at the mutex_lock stage and false at the mutex_unlock stage. This results in the mutex not being unlocked, resulting in a deadlock.
Fix it by making the opt3001_irq() code generally more robust, reading the flag into a variable and using the variable value at both stages.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.16%
- Percentil entre todas las CVEs puntuadas: 4
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (2)
CWE
- CWE-667
Referencias
- https://git.kernel.org/stable/c/1d7def97e7eb65865ccc01bbdf4eb9e6bbe8a5b5
- https://git.kernel.org/stable/c/2c95c8f0959d0a72575eabf2ff888f47ed6d8b77
- https://git.kernel.org/stable/c/748ebd8e61d0bc182c331b8df3887af7285c8a8f
- https://git.kernel.org/stable/c/7ca84f6a22d50bf8b31efe9eb05f9859947266d7
- https://git.kernel.org/stable/c/957e8be112636d9bc692917286e81e54bd87decc
- https://git.kernel.org/stable/c/a9c56ccb7cddfca754291fb24b108a5350a5fbe9
- https://git.kernel.org/stable/c/e791bf216c9e236b34dabf514ec0ede140cca719
- https://git.kernel.org/stable/c/f063a28002e3350088b4577c5640882bf4ea17ea
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: light: opt3001: fix deadlock due to concurrent flag access\n\nThe threaded IRQ function in this driver is reading the flag twice: once to\nlock a mutex and once to unlock it. Even though the code setting the flag\nis designed to prevent it, there are subtle cases where the flag could be\ntrue at the mutex_lock stage and false at the mutex_unlock stage. This\nresults in the mutex not being unlocked, resulting in a deadlock.\n\nFix it by making the opt3001_irq() code generally more robust, reading the\nflag into a variable and using the variable value at both stages."
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iio: light: opt3001: corrección de interbloqueo debido al acceso simultáneo a indicadores. La función IRQ enhebrada de este controlador lee el indicador dos veces: una para bloquear un mutex y otra para desbloquearlo. Aunque el código que configura el indicador está diseñado para evitarlo, existen casos sutiles en los que el indicador podría ser verdadero en la etapa mutex_lock y falso en la etapa mutex_unlock. Esto provoca que el mutex no se desbloquee, lo que genera un interbloqueo. Para solucionarlo, haga que el código opt3001_irq() sea generalmente más robusto, leyendo el indicador en una variable y utilizando el valor de la variable en ambas etapas."
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