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| author | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2024-02-28 10:49:26 -0500 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2024-03-26 18:22:36 -0400 |
| commit | 6d5a9d4a7bcbb7534ce45a18a52e7bd23e69d8ac (patch) | |
| tree | ec2fbf391c15bafd71a6bcf098d243c08e9dd6b0 | |
| parent | 6e960390709966929a29eaec8bca710237a54f24 (diff) | |
| download | linux-stable-6d5a9d4a7bcbb7534ce45a18a52e7bd23e69d8ac.tar.gz linux-stable-6d5a9d4a7bcbb7534ce45a18a52e7bd23e69d8ac.tar.bz2 linux-stable-6d5a9d4a7bcbb7534ce45a18a52e7bd23e69d8ac.zip | |
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>
| -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 f455a503f5b0..47f1eec0eb35 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -2074,7 +2074,7 @@ 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; |