diff options
| author | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2024-02-28 18:49:26 +0300 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2024-03-27 01:16:54 +0300 |
| commit | 2edce8e9a99dd5e4404259d52e754fdc97fb42c2 (patch) | |
| tree | 681f811e1d9259bc44dadbb85194651c8c54562d /net | |
| parent | 0c657e641df1e77d6087688190f632cad9c0439b (diff) | |
| download | linux-2edce8e9a99dd5e4404259d52e754fdc97fb42c2.tar.xz | |
Bluetooth: hci_core: Fix possible buffer overflow
[ Upstream commit 81137162bfaa7278785b24c1fd2e9e74f082e8e4 ]
struct hci_dev_info has a fixed size name[8] field so in the event that
hdev->name is bigger than that strcpy would attempt to write past its
size, so this fixes this problem by switching to use strscpy.
Fixes: dcda165706b9 ("Bluetooth: hci_core: Fix build warnings")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bluetooth/hci_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 96707deef296..85a91c438d72 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -908,7 +908,7 @@ int hci_get_dev_info(void __user *arg) else flags = hdev->flags; - strcpy(di.name, hdev->name); + strscpy(di.name, hdev->name, sizeof(di.name)); di.bdaddr = hdev->bdaddr; di.type = (hdev->bus & 0x0f) | ((hdev->dev_type & 0x03) << 4); di.flags = flags; |