Follow-up Comment #1, bug #53284 (project avr-libc):
This got triggered by nanopb fuzz tests; I'm adding a workaround on my library
side as this would otherwise have potential security implications. It would be
great if this could eventually be fixed on avr-libc side.
I think the suggested patch does not address the case of len == 0, which
should be equivalent to free(ptr). I've attached a patch that handles that
also.
(file #48143)
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Additional Item Attachment:
File name: avr-libc-realloc-small-len-values.patch Size:0 KB
<https://savannah.nongnu.org/file/avr-libc-realloc-small-len-values.patch?file_id=48143>
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