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LibWeb: Fix extra validation for EasingStyleValue intervals

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This commit is contained in:
Pavel Shliak
2024-11-18 17:13:42 +04:00
committed by Alexander Kalenik
parent 801499f13e
commit b342758dbf
3 changed files with 33 additions and 5 deletions
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10
Libraries/LibWeb/CSS/Parser/Parser.cpp
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@@ -6506,13 +6506,13 @@ RefPtr<CSSStyleValue> Parser::parse_easing_value(TokenStream<ComponentValue>& to
}
// Perform extra validation
// https://drafts.csswg.org/css-easing/#funcdef-step-easing-function-steps
// The first parameter specifies the number of intervals in the function. It must be a positive integer greater than 0
// unless the second parameter is jump-none in which case it must be a positive integer greater than 1.
// https://drafts.csswg.org/css-easing/#step-easing-functions
// If the <step-position> is jump-none, the <integer> must be at least 2, or the function is invalid.
// Otherwise, the <integer> must be at least 1, or the function is invalid.
if (steps.position == EasingStyleValue::Steps::Position::JumpNone) {
if (intervals < 1)
if (intervals <= 1)
return nullptr;
} else if (intervals < 0) {
} else if (intervals <= 0) {
return nullptr;
}