CVE-2026-46255

/// Technical 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

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References