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BASH PATCH REPORT
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=================
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Bash-Release: 4.2
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Patch-ID: bash42-024
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Bug-Reported-by: Jim Avera <james_avera@yahoo.com>
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Bug-Reference-ID: <4F29E07A.80405@yahoo.com>
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Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2012-02/msg00001.html
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Bug-Description:
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When `printf -v' is used to set an array element, the format string contains
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`%b', and the corresponding argument is the empty string, the buffer used
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to store the value to be assigned can be NULL, which results in NUL being
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assigned to the array element. This causes a seg fault when it's used later.
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Patch (apply with `patch -p0'):
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*** ../bash-4.2-patched/builtins/printf.def 2011-02-25 12:07:41.000000000 -0500
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--- builtins/printf.def 2012-02-02 08:37:12.000000000 -0500
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***************
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*** 256,259 ****
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--- 257,262 ----
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{
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vflag = 1;
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+ if (vbsize == 0)
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+ vbuf = xmalloc (vbsize = 16);
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vblen = 0;
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if (vbuf)
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*** ../bash-4.2-patched/patchlevel.h Sat Jun 12 20:14:48 2010
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--- patchlevel.h Thu Feb 24 21:41:34 2011
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***************
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*** 26,30 ****
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looks for to find the patch level (for the sccs version string). */
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! #define PATCHLEVEL 23
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#endif /* _PATCHLEVEL_H_ */
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--- 26,30 ----
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looks for to find the patch level (for the sccs version string). */
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! #define PATCHLEVEL 24
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#endif /* _PATCHLEVEL_H_ */
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