On Wed, 6 Sep 2023 10:33:12 +0000 Xiu Jianfeng <xiujianfeng@xxxxxxxxxxxxxxx> wrote: > expand_upwards() and expand_downwards() will return -EFAULT if VM_GROWSUP > or VM_GROWSDOWN is not correctly set in vma->vm_flags, however in > !CONFIG_STACK_GROWSUP case, expand_stack_locked() returns -EINVAL first > if !(vma->vm_flags & VM_GROWSDOWN) before calling expand_downwards(), to > keep the consistency with CONFIG_STACK_GROWSUP case, remove this check. What are the user-visible effects of this change? Do you believe this fix should be backported into earlier kernel versions?
