Greg Wooledge <wool...@eeg.ccf.org> skribis: > On Wed, Jan 13, 2016 at 11:25:03AM +0100, Ludovic Courtès wrote: >> Hello, >> >> The ???READ_SAMPLE_BUF??? macro in execute_cmd.c reads at most 80 bytes from >> the hash-bang line. This is less than the already-small 128-byte limit >> in the Linux kernel¹ and can quite easily be hit². > > That's actually much bigger than one expects for shebang handling on > any traditional Unix system.
Sure, but the fact that it’s smaller than that of the kernel Linux is problematic: when a hash-bang line > 127 chars is encountered, ‘execve’ fails with ENOENT, so Bash’s fallback code is executed, fails as well, but it prints a misleading error message with an even more truncated hash-bang line. Ludo’.
