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gentoo-full-overlay/app-shells/bash/files/bash-4.4-popd-offset-overfl...

31 lines
1.0 KiB

https://bugs.gentoo.org/600174
https://lists.gnu.org/archive/html/bug-bash/2016-11/msg00099.html
*** ../bash-4.4-patched/builtins/pushd.def 2016-01-25 13:31:49.000000000 -0500
--- builtins/pushd.def 2016-10-28 10:46:49.000000000 -0400
***************
*** 366,370 ****
}
! if (which > directory_list_offset || (directory_list_offset == 0 && which == 0))
{
pushd_error (directory_list_offset, which_word ? which_word : "");
--- 366,370 ----
}
! if (which > directory_list_offset || (which < -directory_list_offset) || (directory_list_offset == 0 && which == 0))
{
pushd_error (directory_list_offset, which_word ? which_word : "");
***************
*** 388,391 ****
--- 388,396 ----
of the list into place. */
i = (direction == '+') ? directory_list_offset - which : which;
+ if (i < 0 || i > directory_list_offset)
+ {
+ pushd_error (directory_list_offset, which_word ? which_word : "");
+ return (EXECUTION_FAILURE);
+ }
free (pushd_directory_list[i]);
directory_list_offset--;