Skip to content

gh-111178: Fix getsockaddrarg() undefined behavior #131668

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 12 commits into from
Apr 1, 2025
Merged

gh-111178: Fix getsockaddrarg() undefined behavior #131668

Changes from 1 commit
Commits
Show all changes
12 commits
Select commit Hold shift + click to select a range
88fc5c2
gh-111178: Fix getsockaddrarg() undefined behavior
vstinner Mar 24, 2025
1aebf4c
Simplify code
vstinner Mar 24, 2025
9eb932c
Initialize cid to 0
vstinner Mar 24, 2025
533a478
Use 'unsigned short' type
vstinner Mar 28, 2025
9968c1e
Use 'unsigned char'
vstinner Mar 28, 2025
a95b22d
Add NEWS entry
vstinner Mar 28, 2025
18ed09e
Use 'unsigned long' to parse channel on Windows
vstinner Mar 28, 2025
99dcf45
Fix BTPROTO_HCI on FreeBSD
vstinner Apr 1, 2025
c0d7d03
Update BTPROTO_HCI code
vstinner Apr 1, 2025
7178cfd
Change exception type to ValueError
vstinner Apr 1, 2025
94f7b6f
Remove outdated comments
vstinner Apr 1, 2025
7455bf5
Remove useless assignment
vstinner Apr 1, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
13 changes: 10 additions & 3 deletions Modules/socketmodule.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2045,14 +2045,21 @@ getsockaddrarg(PySocketSockObject *s, PyObject *args,
memset(addr, 0, sizeof(struct sockaddr_l2));
_BT_L2_MEMB(addr, family) = AF_BLUETOOTH;
_BT_L2_MEMB(addr, bdaddr_type) = BDADDR_BREDR;
int psm;
int cid = _BT_L2_MEMB(addr, cid);
unsigned char bdaddr_type = _BT_L2_MEMB(addr, bdaddr_type);
if (!PyArg_ParseTuple(args, "si|iB", &straddr,
&_BT_L2_MEMB(addr, psm),
&_BT_L2_MEMB(addr, cid),
&_BT_L2_MEMB(addr, bdaddr_type))) {
&psm,
&cid,
&bdaddr_type)) {
PyErr_Format(PyExc_OSError,
"%s(): wrong format", caller);
return 0;
}
_BT_L2_MEMB(addr, psm) = psm;
_BT_L2_MEMB(addr, cid) = cid;
_BT_L2_MEMB(addr, bdaddr_type) = bdaddr_type;

if (setbdaddr(straddr, &_BT_L2_MEMB(addr, bdaddr)) < 0)
return 0;

Expand Down
Loading