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Fix crash in virsh after bogus command

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If you ran virsh in interactive mode and ran a command
that virsh could not parse, it would then SEGV
on subsequent commands.  The problem is that we are
freeing the vshCmd structure in the syntaxError label
at the end of vshCommandParse, but forgetting to
set ctl->cmd to NULL.  This means that on the next command,
we would try to free the same structure again, leading
to badness.

* tools/virsh.c: Make sure to set ctl->cmd to NULL after
  freeing it in vshCommandParse()
This commit is contained in:
Chris Lalancette 2010-03-12 12:00:46 +01:00 committed by Daniel Veillard
parent be2a53e6e0
commit 3ebbc241a1
1 changed files with 3 additions and 1 deletions
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4
tools/virsh.c
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@ -8639,8 +8639,10 @@ vshCommandParse(vshControl *ctl, char *cmdstr)
return TRUE;
syntaxError:
if (ctl->cmd)
if (ctl->cmd) {
vshCommandFree(ctl->cmd);
ctl->cmd = NULL;
}
if (first)
vshCommandOptFree(first);
VIR_FREE(tkdata);