On Wed, Dec 19, 2018 at 11:51 AM wrote:
>
>
> In the 4.19 kernel, we are seeing a USERCOPY_WARN in __copy_to_user
> during bootup.
> The code-flow is something like this:
>
> (arch/arm64/kernel/signal.c)
> struct sigset_t *set;
> __copy_to_user(>uc.uc_sigmask, s
In the 4.19 kernel, we are seeing a USERCOPY_WARN in __copy_to_user
during bootup.
The code-flow is something like this:
(arch/arm64/kernel/signal.c)
struct sigset_t *set;
__copy_to_user(>uc.uc_sigmask, set, sizeof(*set))
(include/linux/uaccess.h)
__copy_to_user(void __user *to, const v
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