utils/bash/patches/126-upstream-bash43-026.patch

   1                              BASH PATCH REPORT
   2                              =================
   3
   4 Bash-Release:   4.3
   5 Patch-ID:       bash43-026
   6
   7 Bug-Reported-by:        Tavis Ormandy <taviso@cmpxchg8b.com>
   8 Bug-Reference-ID:
   9 Bug-Reference-URL:      http://twitter.com/taviso/statuses/514887394294652929
  10
  11 Bug-Description:
  12
  13 Under certain circumstances, bash can incorrectly save a lookahead character and
  14 return it on a subsequent call, even when reading a new line.
  15
  16 Patch (apply with `patch -p0'):
  17
  18 --- a/parse.y
  19 +++ b/parse.y
  20 @@ -2953,6 +2953,8 @@ reset_parser ()
  21    FREE (word_desc_to_read);
  22    word_desc_to_read = (WORD_DESC *)NULL;
  23
  24 +  eol_ungetc_lookahead = 0;
  25 +
  26    current_token = '\n';                /* XXX */
  27    last_read_token = '\n';
  28    token_to_read = '\n';
  29 --- a/y.tab.c
  30 +++ b/y.tab.c
  31 @@ -5265,6 +5265,8 @@ reset_parser ()
  32    FREE (word_desc_to_read);
  33    word_desc_to_read = (WORD_DESC *)NULL;
  34
  35 +  eol_ungetc_lookahead = 0;
  36 +
  37    current_token = '\n';                /* XXX */
  38    last_read_token = '\n';
  39    token_to_read = '\n';
  40 @@ -8539,4 +8541,3 @@ set_line_mbstate ()
  41      }
  42  }
  43  #endif /* HANDLE_MULTIBYTE */
  44 -
  45 --- a/patchlevel.h
  46 +++ b/patchlevel.h
  47 @@ -25,6 +25,6 @@
  48     regexp `^#define[   ]*PATCHLEVEL', since that's what support/mkversion.sh
  49     looks for to find the patch level (for the sccs version string). */
  50
  51 -#define PATCHLEVEL 25
  52 +#define PATCHLEVEL 26
  53
  54  #endif /* _PATCHLEVEL_H_ */