[llvm-branch-commits] [compiler-rt] [HWASan] use unused tags for uaf tag, if possible (PR #191914)

[Vitaly Buka via llvm-branch-commits]

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@@ -30,7 +31,7 @@ uptr TagMemory(uptr p, uptr size, tag_t tag) {
 // --- Implementation of LSan-specific functions --- {{{1
 namespace __lsan {
 bool WordIsPoisoned(uptr addr) {
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vitalybuka wrote:

However check ScanForPointers
I believe allocator already can tell if block is dead

I think here we need to comparet addr tag with tag storred in allocator if any

https://github.com/llvm/llvm-project/pull/191914