https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99935
Bug ID: 99935 Summary: Stack exhaustion demangling rust mangled name Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: demangler Assignee: unassigned at gcc dot gnu.org Reporter: nickc at gcc dot gnu.org Target Milestone: --- The rust demangler can be pushed into an infinite loop, triggering stack exhaustion: % cat pr27963 # Reproduced from binutils PR 27963. # Note - the expected output is wrong. It is just there as a placeholder. --format=rust _RIMBALO_suB_I__Z5printi fred % valgrind ./testsuite/test-demangle < pr27963 [...] ==429737== Stack overflow in thread #1: can't grow stack to 0x1ffe001000 [...] =429737== Stack overflow in thread #1: can't grow stack to 0x1ffe001000 ==429737== at 0x410BA7: demangle_path (rust-demangle.c:742) [...] Segmentation fault (core dumped)