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newlib-cygwin
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Cygwin: console: Fix an issue which causes when realloc() fails.

This commit is contained in:
Takashi Yano 2022-07-09 14:16:11 +09:00
parent 282d57d2a8
commit 421dcf72fb
1 changed files with 13 additions and 5 deletions
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18
winsup/cygwin/fhandler_console.cc
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@ -296,7 +296,11 @@ fhandler_console::cons_master_thread (handle_set_t *p, tty *ttyp)
(INPUT_RECORD *) malloc (inrec_size * sizeof (INPUT_RECORD));
if (!input_rec || !input_tmp)
return; /* Cannot continue */
{ /* Cannot continue */
free (input_rec);
free (input_tmp);
return;
}
DWORD inrec_size1 =
wincap.cons_need_small_input_record_buf () ? INREC_SIZE : inrec_size;
@ -343,13 +347,15 @@ fhandler_console::cons_master_thread (handle_set_t *p, tty *ttyp)
DWORD new_inrec_size = total_read + additional_space;
INPUT_RECORD *new_input_rec = (INPUT_RECORD *)
realloc (input_rec, m::bytes (new_inrec_size));
if (new_input_rec)
input_rec = new_input_rec;
INPUT_RECORD *new_input_tmp = (INPUT_RECORD *)
realloc (input_tmp, m::bytes (new_inrec_size));
if (new_input_tmp)
input_tmp = new_input_tmp;
if (new_input_rec && new_input_tmp)
{
inrec_size = new_inrec_size;
input_rec = new_input_rec;
input_tmp = new_input_tmp;
if (!wincap.cons_need_small_input_record_buf ())
inrec_size1 = inrec_size;
}
@ -478,13 +484,15 @@ remove_record:
DWORD new_inrec_size = n + additional_space;
INPUT_RECORD *new_input_rec = (INPUT_RECORD *)
realloc (input_rec, m::bytes (new_inrec_size));
if (new_input_rec)
input_rec = new_input_rec;
INPUT_RECORD *new_input_tmp = (INPUT_RECORD *)
realloc (input_tmp, m::bytes (new_inrec_size));
if (new_input_tmp)
input_tmp = new_input_tmp;
if (new_input_rec && new_input_tmp)
{
inrec_size = new_inrec_size;
input_rec = new_input_rec;
input_tmp = new_input_tmp;
if (!wincap.cons_need_small_input_record_buf ())
inrec_size1 = inrec_size;
}