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51 lines
1.8 KiB
51 lines
1.8 KiB
BASH PATCH REPORT
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=================
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Bash-Release: 4.3
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Patch-ID: bash43-009
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Bug-Reported-by: Matthias Klose <doko@debian.org>
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Bug-Reference-ID: <53346FC8.6090005@debian.org>
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Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2014-03/msg00171.html
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Bug-Description:
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There is a problem with unsigned sign extension when attempting to reallocate
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the input line when it is fewer than 3 characters long and there has been a
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history expansion. The sign extension causes the shell to not reallocate the
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line, which results in a segmentation fault when it writes past the end.
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Patch (apply with `patch -p0'):
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--- a/parse.y
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+++ b/parse.y
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@@ -2424,7 +2424,7 @@ shell_getc (remove_quoted_newline)
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not already end in an EOF character. */
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if (shell_input_line_terminator != EOF)
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{
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- if (shell_input_line_size < SIZE_MAX && shell_input_line_len > shell_input_line_size - 3)
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+ if (shell_input_line_size < SIZE_MAX-3 && (shell_input_line_len+3 > shell_input_line_size))
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shell_input_line = (char *)xrealloc (shell_input_line,
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1 + (shell_input_line_size += 2));
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--- a/y.tab.c
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+++ b/y.tab.c
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@@ -4736,7 +4736,7 @@ shell_getc (remove_quoted_newline)
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not already end in an EOF character. */
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if (shell_input_line_terminator != EOF)
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{
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- if (shell_input_line_size < SIZE_MAX && shell_input_line_len > shell_input_line_size - 3)
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+ if (shell_input_line_size < SIZE_MAX-3 && (shell_input_line_len+3 > shell_input_line_size))
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shell_input_line = (char *)xrealloc (shell_input_line,
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1 + (shell_input_line_size += 2));
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--- a/patchlevel.h
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+++ b/patchlevel.h
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@@ -25,6 +25,6 @@
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regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
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looks for to find the patch level (for the sccs version string). */
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-#define PATCHLEVEL 8
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+#define PATCHLEVEL 9
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#endif /* _PATCHLEVEL_H_ */
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