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debug/pe: fix off by one error in valid symbol index test

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Fix an off-by-one error in COFFSymbolReadSectionDefAux, specifically
the code that tests whether a symbol index is valid.

Fixes #52525.

Change-Id: I1b6e5dacfd99249c694bef5ae606e90fdb2ef521
Reviewed-on: https://go-review.googlesource.com/c/go/+/402156
Run-TryBot: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This commit is contained in:
Than McIntosh 2022-04-25 11:22:10 -04:00
parent 6b1d9aefa8
commit 94f25ec949
1 changed files with 1 additions and 2 deletions
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3
src/debug/pe/symbol.go
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@ -136,10 +136,9 @@ const (
// auxiliary symbols: https://docs.microsoft.com/en-us/windows/win32/debug/pe-format#auxiliary-symbol-records
// COMDAT sections: https://docs.microsoft.com/en-us/windows/win32/debug/pe-format#comdat-sections-object-only
// auxiliary info for section definitions: https://docs.microsoft.com/en-us/windows/win32/debug/pe-format#auxiliary-format-5-section-definitions
//
func (f *File) COFFSymbolReadSectionDefAux(idx int) (*COFFSymbolAuxFormat5, error) {
var rv *COFFSymbolAuxFormat5
if idx < 0 || idx > len(f.COFFSymbols) {
if idx < 0 || idx >= len(f.COFFSymbols) {
return rv, fmt.Errorf("invalid symbol index")
}
pesym := &f.COFFSymbols[idx]