Duplicated on my Macs; /bin/zsh (5.9) exhibits the crash on both x86_64 and ARM (M2). My locally-built 5.9.0.1-dev does not exhibit the symptom. To see if it was a build thing or the result of a code change, I checked out the zsh-5.9 tag and built that... and it also did not crash. So it seems to be something about Apple's build environment. On Sat, Jun 8, 2024 at 7:04 PM Mark J. Reed wrote: > I'm away from my Mac at the moment, but FWIW, the crash does not appear to > happen on Windows (MSYS64): > > *(0)> printf -v result " %5'd"* > *printf: %5': invalid directive* > *(1)> $0 --version* > *zsh 5.9 (x86_64-pc-msys)* > > > On Sat, Jun 8, 2024 at 5:13 PM Philippe Altherr < > philippe.altherr@gmail.com> wrote: > >> On macOS 14.5 running Zsh 5.9, the following command crashes Zsh: >> >> % zsh -c "printf -v result \" %5'd\"" >> >> zsh:printf:1: %5': invalid directive >> >> zsh(41890,0x7ff8450ddfc0) malloc: *** error for object 0x600002c811e0: >> pointer being realloc'd was not allocated >> >> zsh(41890,0x7ff8450ddfc0) malloc: *** set a breakpoint in >> malloc_error_break to debug >> >> zsh: abort zsh -c "printf -v result \" %5'd\"" >> >> Surprisingly, dropping the -v option, removing the space before the %, >> or adding an echo command after the printf command avoid the crash: >> >> % zsh -c "printf \" %5'd\"" >> >> zsh:printf:1: %5': invalid directive >> >> *%* >> >> % zsh -c "printf -v result \"%5'd\"" >> >> zsh:printf:1: %5': invalid directive >> >> % zsh -c "printf -v result \" %5'd\"; echo foo" >> >> zsh:printf:1: %5': invalid directive >> >> foo >> >> Philippe >> >> > > -- > Mark J. Reed > -- Mark J. Reed