928ea98252
In fsl_mc_bus_remove(), mc->root_mc_bus_dev->mc_io is passed to
fsl_destroy_mc_io(). However, mc->root_mc_bus_dev is already freed in
fsl_mc_device_remove(). Then reference to mc->root_mc_bus_dev->mc_io
triggers KASAN use-after-free. To avoid the use-after-free, keep the
reference to mc->root_mc_bus_dev->mc_io in a local variable and pass to
fsl_destroy_mc_io().
This patch needs rework to apply to kernels older than v5.15.
Fixes:
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||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| dpbp.c | ||
| dpcon.c | ||
| dpmcp.c | ||
| dprc-driver.c | ||
| dprc.c | ||
| fsl-mc-allocator.c | ||
| fsl-mc-bus.c | ||
| fsl-mc-msi.c | ||
| fsl-mc-private.h | ||
| fsl-mc-uapi.c | ||
| mc-io.c | ||
| mc-sys.c | ||
| obj-api.c | ||