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| author | Gregory P. Smith <greg@mad-scientist.com> | 2008-06-11 07:41:16 (GMT) |
|---|---|---|
| committer | Gregory P. Smith <greg@mad-scientist.com> | 2008-06-11 07:41:16 (GMT) |
| commit | 9d53457e599623fbad90833c3448835b42d7e7f9 (patch) | |
| tree | 41d37b556618eb8e831463c576d854063a33d77b /Modules/_struct.c | |
| parent | 73baefd7fc86a7f8336e4142efcec74c201acf8f (diff) | |
| download | cpython-9d53457e599623fbad90833c3448835b42d7e7f9.zip cpython-9d53457e599623fbad90833c3448835b42d7e7f9.tar.gz cpython-9d53457e599623fbad90833c3448835b42d7e7f9.tar.bz2 | |
Merge in release25-maint r60793:
Added checks for integer overflows, contributed by Google. Some are
only available if asserts are left in the code, in cases where they
can't be triggered from Python code.
Diffstat (limited to 'Modules/_struct.c')
| -rw-r--r-- | Modules/_struct.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Modules/_struct.c b/Modules/_struct.c index e5fe211..078c3a5 100644 --- a/Modules/_struct.c +++ b/Modules/_struct.c @@ -1385,6 +1385,12 @@ prepare_s(PyStructObject *self) } } + /* check for overflow */ + if ((len + 1) > (PY_SSIZE_T_MAX / sizeof(formatcode))) { + PyErr_NoMemory(); + return -1; + } + self->s_size = size; self->s_len = len; codes = PyMem_MALLOC((len + 1) * sizeof(formatcode)); |