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Assertion 'context_p->stack_top_uint8 == LEXER_EXPRESSION_START' failed at jerryscript/jerry-core/parser/js/js-parser-expr.c(parser_parse_expression):4522. #4925

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SwtWld opened this issue Jan 4, 2022 · 0 comments · May be fixed by #4948
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Assertion 'context_p->stack_top_uint8 == LEXER_EXPRESSION_START' failed at jerryscript/jerry-core/parser/js/js-parser-expr.c(parser_parse_expression):4522. #4925

SwtWld opened this issue Jan 4, 2022 · 0 comments · May be fixed by #4948
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@rerobika
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bug Undesired behaviour

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@SwtWld
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SwtWld commented Jan 4, 2022 •
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JerryScript revision

Commit: a6ab5e9

Version: v3.0.0

Build platform

Ubuntu 18.04.5 LTS (Linux 4.19.128-microsoft-standard x86_64)

Ubuntu 18.04.5 LTS (Linux 5.4.0-44-generic x86_64)

Build steps
python ./tools/build.py --clean --debug --compile-flag=-fsanitize=address --compile-flag=-m32 --compile-flag=-g --strip=off --lto=off --logging=on --line-info=on --error-message=on --system-allocator=on --stack-limit=20
Test case
poc.js 


function JSEtest() {
    function o() {}
    function k() {
        for (i = 0; i < this.depth; ++i) {}
    }
    for (const i = 0; i < 10; i++)
        (i) = {o: o, k: k};
}
JSEtest();

​
Execution steps & Output
$ ./jerryscript/build/bin/jerry poc.js

ICE: Assertion 'context_p->stack_top_uint8 == LEXER_EXPRESSION_START' failed at jerryscript/jerry-core/parser/js/js-parser-expr.c(parser_parse_expression):4522.
Error: ERR_FAILED_INTERNAL_ASSERTION
[1]    30029 abort      jerry poc.js

Credits: Found by OWL337 team.
@rerobika rerobika added the bug Undesired behaviour label Jan 4, 2022
@rerobika rerobika self-assigned this Jan 4, 2022
rerobika pushed a commit to rerobika/jerryscript that referenced this issue Jan 4, 2022
Const literal marker should be proccessed before group assignment marker
f994009 
This patch fixes jerryscript-project#4925.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik [email protected]
rerobika pushed a commit to rerobika/jerryscript that referenced this issue Jan 4, 2022
Const literal marker should be processed before group assignment marker
85b291a 
This patch fixes jerryscript-project#4925.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik [email protected]
@rerobika rerobika linked a pull request Jan 4, 2022 that will close this issue
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rerobika pushed a commit to rerobika/jerryscript that referenced this issue Jan 14, 2022
Const literal marker should be processed before group assignment marker
356c3c3 
This patch fixes jerryscript-project#4925.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik [email protected]
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Const literal marker should be processed before group assignment marker rerobika/jerryscript
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@rerobika @SwtWld