Messages in this thread | | | Date | Wed, 1 Feb 2012 15:12:06 +0800 | Subject | Some question about "security context of a task" | From | loody <> |
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hi all: I found there is a user_struct, user, located at struct cred. is it possible be null? My platform sometimes panic when using kernel_thread to creating a thread for running.
below is the place it happen
if (atomic_read(&p->real_cred->user->processes) >= p->signal->rlim[RLIMIT_NPROC].rlim_cur) { after checking the parameter, I found p->real_cred->user is NULL.
When and how we allocate/destroy this parameter? Does that mean we should some basic check before calling kernel_thread?
-- Regards,
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