CVE-2026-46255

dmaengine: fsl-edma: don't explicitly disable clocks in .remove()

MEDIUM
5.5
CVSS Score
Published: June 3, 2026 at 03:49 PM UTC
Updated: July 22, 2026 at 08:24 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

Description

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().

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.13 ≤ v < 6.18.146.19 ≤ v < 6.19.46.6 ≤ v < 6.12.756.6 ≤ v < 6.18.146.6 ≤ v < 6.19.46.6 ≤ v < 6.6.1286.6 ≤ v < 7.06.7 ≤ v < 6.12.756.6a9903de3aa16731846bf924342eca44bdabe9be6
Vendor states this is fixed in 533d495f15e4c88ad5246c7f90ae026702e28d75 (fixed)
Vendor states this is fixed in 666c53e94c1d0bf0bdf14c49505ece9ddbe725bc (fixed)
Vendor states this is fixed in 68feac21bd4de7ae4faba05704c404861d991fcf (fixed)
Vendor states this is fixed in b84dba68c4823da452cec99a5d213571a65d06de (fixed)
Vendor states this is fixed in bda244871179543dd3be7d093236cb33b2fb1765 (fixed)
Vendor states this is fixed in 6.12.75 (unaffected)
Vendor states this is fixed in 6.18.14 (unaffected)
Vendor states this is fixed in 6.19.4 (unaffected)
Vendor states this is fixed in 6.6 (unaffected)
Vendor states this is fixed in 6.6.128 (unaffected)
Vendor states this is fixed in 7.0 (unaffected)

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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