bugTiny C Compiler - Bugs: bug #67768, Incorrect handling of large values...

 
 

bug #67768: Incorrect handling of large values in .org assembly directive

Submitter:  Fabian Pütz <fpuetz>
Submitted:  Thu 04 Dec 2025 09:05:48 AM UTC
   
 
Category:  None Severity:  3 - Normal
Priority:  5 - Normal Item Group:  None
Status:  None Privacy:  Public
Assigned to:  None Open/Closed:  Open
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Thu 04 Dec 2025 09:05:48 AM UTC, original submission:  

When tcc (on recent commit 0fcd46f3) is compiled with address sanitizer, the following input fails:

int main() {
  __asm__ __volatile__(".org 33824993159184");
  __asm__ __volatile__(".org 33824992635528");
}

with:

==11==ERROR: AddressSanitizer: negative-size-param: (size=-523656)


Fabian Pütz <fpuetz>

 

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