From http://ftp.gnu.org/pub/gnu/bash/bash-4.3-patches/bash43-041 Signed-off-by: Gustavo Zacarias BASH PATCH REPORT ================= Bash-Release: 4.3 Patch-ID: bash43-041 Bug-Reported-by: Hanno Böck Bug-Reference-ID: <20150623131106.6f111da9@pc1>, <20150707004640.0e61d2f9@pc1> Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2015-06/msg00089.html, http://lists.gnu.org/archive/html/bug-bash/2015-07/msg00018.html Bug-Description: There are several out-of-bounds read errors that occur when completing command lines where assignment statements appear before the command name. The first two appear only when programmable completion is enabled; the last one only happens when listing possible completions. Patch (apply with `patch -p0'): *** a/bash-4.3.40/bashline.c 2014-12-29 14:39:43.000000000 -0500 --- b/bashline.c 2015-08-12 10:21:58.000000000 -0400 *************** *** 1469,1476 **** --- 1469,1489 ---- os = start; n = 0; + was_assignment = 0; s = find_cmd_start (os); e = find_cmd_end (end); do { + /* Don't read past the end of rl_line_buffer */ + if (s > rl_end) + { + s1 = s = e1; + break; + } + /* Or past point if point is within an assignment statement */ + else if (was_assignment && s > rl_point) + { + s1 = s = e1; + break; + } /* Skip over assignment statements preceding a command name. If we don't find a command name at all, we can perform command name *** a/bash-4.3.40/lib/readline/complete.c 2013-10-14 09:27:10.000000000 -0400 --- b/lib/readline/complete.c 2015-07-31 09:34:39.000000000 -0400 *************** *** 690,693 **** --- 690,695 ---- if (temp == 0 || *temp == '\0') return (pathname); + else if (temp[1] == 0 && temp == pathname) + return (pathname); /* If the basename is NULL, we might have a pathname like '/usr/src/'. Look for a previous slash and, if one is found, return the portion *** a/bash-4.3/patchlevel.h 2012-12-29 10:47:57.000000000 -0500 --- b/patchlevel.h 2014-03-20 20:01:28.000000000 -0400 *************** *** 26,30 **** looks for to find the patch level (for the sccs version string). */ ! #define PATCHLEVEL 40 #endif /* _PATCHLEVEL_H_ */ --- 26,30 ---- looks for to find the patch level (for the sccs version string). */ ! #define PATCHLEVEL 41 #endif /* _PATCHLEVEL_H_ */