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http://lists.gnu.org/archive/html/bug-bash/2016-07/msg00066.html
From: Andreas Schwab <schwab@suse.de>
To: bug-bash@gnu.org
Subject: a=$* -> crash
Date: Wed, 27 Jul 2016 13:59:22 +0200
Message-ID: <mvmbn1j2sx1.fsf@hawking.suse.de>
(gdb) r
Starting program: /bin/bash -c a=\$\*
Program received signal SIGSEGV, Segmentation fault.
quote_string (string=string@entry=0x0) at subst.c:3940
3940 if (*string == 0)
diff --git a/subst.c b/subst.c
index 37d96f9..16ae3f0 100644
--- a/subst.c
+++ b/subst.c
@@ -8575,7 +8575,7 @@ param_expand (string, sindex, quoted, expanded_something,
/* If we're not quoted but we still don't want word splitting, make
we quote the IFS characters to protect them from splitting (e.g.,
when $@ is in the string as well). */
- else if (quoted == 0 && ifs_is_set && (pflags & PF_ASSIGNRHS))
+ else if (temp != 0 && quoted == 0 && ifs_is_set && (pflags & PF_ASSIGNRHS))
{
temp1 = quote_string (temp);
free (temp);
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
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