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libsupport_zynq/ram: check ptr range for deallocation

master
pca006132 2020-09-03 12:56:10 +08:00
parent 157439bc88
commit a116142f63
1 changed files with 4 additions and 1 deletions
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5
libsupport_zynq/src/ram.rs
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@ -34,7 +34,10 @@ unsafe impl GlobalAlloc for CortexA9Alloc {
}
unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
if cfg!(not(feature = "alloc_core")) || MPIDR.read().cpu_id() == 0 {
if cfg!(not(feature = "alloc_core"))
|| ((&__heap0_start as *const usize as usize <= ptr as usize)
&& ((ptr as usize) < &__heap0_end as *const usize as usize))
{
&self.0
} else {
&self.1