Just lost a couple hours due to this bug. What Vincent reported seems debatable as -c is explicitely documented as "Read commands from the command_string operand instead of from the standard input." which suggests the file is to be interpreted as a shell script.
But same happens for ./foo or `foo` where one would expect the ability to execute arbitrary binary files. Thus, dash must handle the case of a binary that currently has no binfmt handler loaded. Looking at dash's "competitors", I see that: * bash looks for \0 bytes in a sample at the start of the file (somehow only up to first \n) * mksh knows a bunch of magic signatures * zsh looks for \0 bytes in a sample at the start of the file -- A tit a day keeps the vet away.
