CVE-2026-46255
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: fsl-edma: don't explicitly disable clocks in .remove()
The clocks in fsl_edma_engine::muxclk are allocated and enabled with devm_clk_get_enabled(), which automatically cleans these resources up, but these clocks are also manually disabled in fsl_edma_remove(). This causes warnings on driver removal for each clock:
Fix these warnings by removing the unnecessary fsl_disable_clocks() call in fsl_edma_remove().
Detalles técnicos trazas, registros y código del informe original
edma_module already disabled
WARNING: CPU: 0 PID: 418 at drivers/clk/clk.c:1200 clk_core_disable+0x198/0x1c8
[...]
Call trace:
clk_core_disable+0x198/0x1c8 (P)
clk_disable+0x34/0x58
fsl_edma_remove+0x74/0xe8 [fsl_edma]
[...]
---[ end trace 0000000000000000 ]---
edma_module already unprepared
WARNING: CPU: 0 PID: 418 at drivers/clk/clk.c:1059 clk_core_unprepare+0x1f8/0x220
[...]
Call trace:
clk_core_unprepare+0x1f8/0x220 (P)
clk_unprepare+0x34/0x58
fsl_edma_remove+0x7c/0xe8 [fsl_edma]
[...]
---[ end trace 0000000000000000 ]---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: 5
- Fecha de la puntuación: 5/10/2026
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 (1)
CWE
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/533d495f15e4c88ad5246c7f90ae026702e28d75
- https://git.kernel.org/stable/c/666c53e94c1d0bf0bdf14c49505ece9ddbe725bc
- https://git.kernel.org/stable/c/68feac21bd4de7ae4faba05704c404861d991fcf
- https://git.kernel.org/stable/c/b84dba68c4823da452cec99a5d213571a65d06de
- https://git.kernel.org/stable/c/bda244871179543dd3be7d093236cb33b2fb1765
JSON original (NVD)
Mostrar
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"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
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"published": "2026-06-03T18:16:26.463",
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"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: fsl-edma: don't explicitly disable clocks in .remove()\n\nThe clocks in fsl_edma_engine::muxclk are allocated and enabled with\ndevm_clk_get_enabled(), which automatically cleans these resources up,\nbut these clocks are also manually disabled in fsl_edma_remove(). This\ncauses warnings on driver removal for each clock:\n\n edma_module already disabled\n WARNING: CPU: 0 PID: 418 at drivers/clk/clk.c:1200 clk_core_disable+0x198/0x1c8\n [...]\n Call trace:\n clk_core_disable+0x198/0x1c8 (P)\n clk_disable+0x34/0x58\n fsl_edma_remove+0x74/0xe8 [fsl_edma]\n [...]\n ---[ end trace 0000000000000000 ]---\n edma_module already unprepared\n WARNING: CPU: 0 PID: 418 at drivers/clk/clk.c:1059 clk_core_unprepare+0x1f8/0x220\n [...]\n Call trace:\n clk_core_unprepare+0x1f8/0x220 (P)\n clk_unprepare+0x34/0x58\n fsl_edma_remove+0x7c/0xe8 [fsl_edma]\n [...]\n ---[ end trace 0000000000000000 ]---\n\nFix these warnings by removing the unnecessary fsl_disable_clocks() call\nin fsl_edma_remove()."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndmaengine: fsl-edma: no deshabilitar explícitamente los relojes en .remove()\n\nLos relojes en fsl_edma_engine::muxclk se asignan y habilitan con\ndevm_clk_get_enabled(), lo que automáticamente libera estos recursos,\npero estos relojes también se deshabilitan manualmente en fsl_edma_remove(). Esto\ncausa advertencias al eliminar el controlador para cada reloj:\n\n edma_module ya deshabilitado\n ADVERTENCIA: CPU: 0 PID: 418 at drivers/clk/clk.c:1200 clk_core_disable+0x198/0x1c8\n [...]\n Traza de llamada:\n clk_core_disable+0x198/0x1c8 (P)\n clk_disable+0x34/0x58\n fsl_edma_remove+0x74/0xe8 [fsl_edma]\n [...]\n ---[ fin de la traza 0000000000000000 ]---\n edma_module ya no preparado\n ADVERTENCIA: CPU: 0 PID: 418 at drivers/clk/clk.c:1059 clk_core_unprepare+0x1f8/0x220\n [...]\n Traza de llamada:\n clk_core_unprepare+0x1f8/0x220 (P)\n clk_unprepare+0x34/0x58\n fsl_edma_remove+0x7c/0xe8 [fsl_edma]\n [...]\n ---[ fin de la traza 0000000000000000 ]---\n\nSolucionar estas advertencias eliminando la llamada innecesaria a fsl_disable_clocks()\nen fsl_edma_remove()."
}
],
"lastModified": "2026-07-22T20:10:00.127",
"configurations": [
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