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- BASH PATCH REPORT
- =================
- Bash-Release: 4.3
- Patch-ID: bash43-026
- Bug-Reported-by: Tavis Ormandy <taviso@cmpxchg8b.com>
- Bug-Reference-ID:
- Bug-Reference-URL: http://twitter.com/taviso/statuses/514887394294652929
- Bug-Description:
- Under certain circumstances, bash can incorrectly save a lookahead character and
- return it on a subsequent call, even when reading a new line.
- Patch (apply with `patch -p0'):
- --- a/parse.y
- +++ b/parse.y
- @@ -2953,6 +2953,8 @@ reset_parser ()
- FREE (word_desc_to_read);
- word_desc_to_read = (WORD_DESC *)NULL;
-
- + eol_ungetc_lookahead = 0;
- +
- current_token = '\n'; /* XXX */
- last_read_token = '\n';
- token_to_read = '\n';
- --- a/y.tab.c
- +++ b/y.tab.c
- @@ -5265,6 +5265,8 @@ reset_parser ()
- FREE (word_desc_to_read);
- word_desc_to_read = (WORD_DESC *)NULL;
-
- + eol_ungetc_lookahead = 0;
- +
- current_token = '\n'; /* XXX */
- last_read_token = '\n';
- token_to_read = '\n';
- @@ -8539,4 +8541,3 @@ set_line_mbstate ()
- }
- }
- #endif /* HANDLE_MULTIBYTE */
- -
- --- a/patchlevel.h
- +++ b/patchlevel.h
- @@ -25,6 +25,6 @@
- regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
- looks for to find the patch level (for the sccs version string). */
-
- -#define PATCHLEVEL 25
- +#define PATCHLEVEL 26
-
- #endif /* _PATCHLEVEL_H_ */
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