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padding: fix codeql reported security issue

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Sun Yimin 2025-06-23 10:27:45 +08:00 committed by GitHub
parent 59f85b654e
commit 8cfcf01ec3
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GPG Key ID: B5690EEEBB952194
1 changed files with 4 additions and 4 deletions
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8
padding/iso9797_m3.go
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@ -28,13 +28,13 @@ func (pad iso9797M3Padding) Pad(src []byte) []byte {
overhead = 0 overhead = 0
} }
var head, tail []byte if srcLen > (int(^uint(0) >> 1) - overhead - pad.BlockSize()) {
total := srcLen + overhead + pad.BlockSize()
if total <= 0 {
panic("padding: total length overflow") panic("padding: total length overflow")
} }
var head, tail []byte
total := srcLen + overhead + pad.BlockSize()
if cap(src) >= total { if cap(src) >= total {
head = src[:total] head = src[:total]
} else { } else {