Hi All,
I am facing kernel panic issue at 'copy_to_user()' function execution in
Kernel msm-3.18.
Below are my development environment:
PLATFORM_VERSION_CODENAME=REL
> PLATFORM_VERSION=9
> TARGET_PRODUCT=msm8953_64
> TARGET_BUILD_VARIANT=userdebug
> TARGET_BUILD_TYPE=release
> TARGET_ARCH=arm64
> TARGET_ARCH_VARIANT=armv8-a
> TARGET_CPU_VARIANT=generic
> TARGET_2ND_ARCH=arm
> TARGET_2ND_ARCH_VARIANT=armv8-a
> TARGET_2ND_CPU_VARIANT=cortex-a53
> HOST_ARCH=x86_64
> HOST_2ND_ARCH=x86
> HOST_OS=linux
> HOST_OS_EXTRA=Linux-4.15.0-36-generic-x86_64-Ubuntu-16.04.5-LTS
> HOST_CROSS_OS=windows
> HOST_CROSS_ARCH=x86
> HOST_CROSS_2ND_ARCH=x86_64
> HOST_BUILD_TYPE=release
> BUILD_ID=PKQ1.180819.001
> OUT_DIR=out
Below is the error output:
[ 19.998965] Kernel panic - not syncing: Accessing user space memory
> outside uaccess.h routines
There are HBI drivers in drivers/hbi directory, and in HBI_OPEN case at
below function kernel panic happens:
ret = copy_from_user(&devcfg,
(const void __user*)(openArg.pDevCfg),
sizeof(hbi_dev_cfg_t));
Please let me know, if more information require.
If anyone have an idea, please help to solving this issue.
Regards,
Jaymin
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