[Bug 669] New: hush's exec applet mishandles empty strings ""
bugzilla at busybox.net
bugzilla at busybox.net
Sun Oct 18 05:19:18 UTC 2009
https://bugs.busybox.net/show_bug.cgi?id=669
Summary: hush's exec applet mishandles empty strings ""
Product: Busybox
Version: unspecified
Platform: PC
OS/Version: Linux
Status: NEW
Severity: enhancement
Priority: P5
Component: Standard Compliance
AssignedTo: unassigned at busybox.net
ReportedBy: vapier at gentoo.org
CC: busybox-cvs at busybox.net
Estimated Hours: 0.0
while fixing `` and $() seemed to be easy (hopefully i put the check at the
right place), the exec "" crash seems to be a nested issue
builtin_exec() uses pseudo_exec_argv(), but the functions this one relies on
seems to eat empty strings. for example:
exec ""
exec ls ""
hush segfaults on the first one while the second one it interprets as:
exec ls
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