BASH PATCH REPORT ================= Bash-Release: 4.2 Patch-ID: bash42-022 Bug-Reported-by: Gregory Margo Bug-Reference-ID: <20110727174529.GA3333@pacbell.net> Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2011-07/msg00102.html Bug-Description: The return value from lseek is `off_t'. This can cause corrupted return values when the file offset is greater than 2**31 - 1. Patch (apply with `patch -p0'): *** ../bash-4.2-patched/lib/sh/zread.c Mon Mar 2 08:54:45 2009 --- lib/sh/zread.c Thu Jul 28 18:16:53 2011 *************** *** 161,166 **** int fd; { ! off_t off; ! int r; off = lused - lind; --- 161,165 ---- int fd; { ! off_t off, r; off = lused - lind; *************** *** 169,173 **** r = lseek (fd, -off, SEEK_CUR); ! if (r >= 0) lused = lind = 0; } --- 168,172 ---- r = lseek (fd, -off, SEEK_CUR); ! if (r != -1) lused = lind = 0; } *** ../bash-4.2-patched/patchlevel.h Sat Jun 12 20:14:48 2010 --- patchlevel.h Thu Feb 24 21:41:34 2011 *************** *** 26,30 **** looks for to find the patch level (for the sccs version string). */ ! #define PATCHLEVEL 21 #endif /* _PATCHLEVEL_H_ */ --- 26,30 ---- looks for to find the patch level (for the sccs version string). */ ! #define PATCHLEVEL 22 #endif /* _PATCHLEVEL_H_ */