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8357468: [asan] heap buffer overflow reported in PcDesc::pc_offset() pcDesc.hpp:57

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Reviewed-by: kvn, thartmann
This commit is contained in:
Dean Long 2025-05-23 19:29:09 +00:00
parent 236e1b6d52
commit 66747710a4
1 changed files with 3 additions and 1 deletions
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4
src/hotspot/share/code/nmethod.cpp
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@ -393,7 +393,9 @@ static inline bool match_desc(PcDesc* pc, int pc_offset, bool approximate) {
if (!approximate) {
return pc->pc_offset() == pc_offset;
} else {
return (pc-1)->pc_offset() < pc_offset && pc_offset <= pc->pc_offset();
// Do not look before the sentinel
assert(pc_offset > PcDesc::lower_offset_limit, "illegal pc_offset");
return pc_offset <= pc->pc_offset() && (pc-1)->pc_offset() < pc_offset;
}
}