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Issue #16230: Fix a crash in select.select() when one the lists changes size while iterated on.

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Patch by Serhiy Storchaka.
This commit is contained in:
Antoine Pitrou 2012-11-01 20:16:07 +01:00
commit 787fbe9d6b
3 changed files with 15 additions and 4 deletions
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6
Modules/selectmodule.c
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@ -84,7 +84,7 @@ seq2set(PyObject *seq, fd_set *set, pylist fd2obj[FD_SETSIZE + 1])
{
int max = -1;
int index = 0;
Py_ssize_t i, len = -1;
Py_ssize_t i;
PyObject* fast_seq = NULL;
PyObject* o = NULL;
@ -95,9 +95,7 @@ seq2set(PyObject *seq, fd_set *set, pylist fd2obj[FD_SETSIZE + 1])
if (!fast_seq)
return -1;
len = PySequence_Fast_GET_SIZE(fast_seq);
for (i = 0; i < len; i++) {
for (i = 0; i < PySequence_Fast_GET_SIZE(fast_seq); i++) {
SOCKET v;
/* any intervening fileno() calls could decr this refcnt */