CVE-2026-46255

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: 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 ]--- Fix these warnings by removing the unnecessary fsl_disable_clocks() call in fsl_edma_remove().

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/533d495f15e4c88ad5246c7f90ae026702e28d75	Patch
https://git.kernel.org/stable/c/666c53e94c1d0bf0bdf14c49505ece9ddbe725bc	Patch
https://git.kernel.org/stable/c/68feac21bd4de7ae4faba05704c404861d991fcf	Patch
https://git.kernel.org/stable/c/b84dba68c4823da452cec99a5d213571a65d06de	Patch
https://git.kernel.org/stable/c/bda244871179543dd3be7d093236cb33b2fb1765	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-06-03 18:16

Updated : 2026-07-22 20:10

NVD link : CVE-2026-46255

Mitre link : CVE-2026-46255

CVE.ORG link : CVE-2026-46255

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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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 expl\u00edcitamente los relojes en .remove()\n\nLos relojes en fsl_edma_engine::muxclk se asignan y habilitan con\ndevm_clk_get_enabled(), lo que autom\u00e1ticamente libera estos recursos,\npero estos relojes tambi\u00e9n 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": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C0FD95A9-209E-44A8-8F1D-1EB130F75861", "versionEndExcluding": "6.6.128", "versionStartIncluding": "6.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BCE16369-98ED-41CF-8995-DFDC10B288D2", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF463CB7-1F58-4607-B847-77ED23E4B9B7", "versionEndExcluding": "6.18.14", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "672A3E79-EC03-479D-8503-361DFBDC8092", "versionEndExcluding": "6.19.4", "versionStartIncluding": "6.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}