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| author | Edward AD <twuufnxlz@gmail.com> | 2023-10-10 13:36:57 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-25 12:03:16 +0200 |
| commit | a429d65428d5e253782ad8371e2d03542c2b85f2 (patch) | |
| tree | 1dc4d5f98ee82fca56a0d3f0f08c5c346194600b /net | |
| parent | 46de539282f278cae142d38ae32aed3e20f07a09 (diff) | |
| download | linux-stable-a429d65428d5e253782ad8371e2d03542c2b85f2.tar.gz linux-stable-a429d65428d5e253782ad8371e2d03542c2b85f2.tar.bz2 linux-stable-a429d65428d5e253782ad8371e2d03542c2b85f2.zip | |
Bluetooth: hci_sock: fix slab oob read in create_monitor_event
commit 18f547f3fc074500ab5d419cf482240324e73a7e upstream.
When accessing hdev->name, the actual string length should prevail
Reported-by: syzbot+c90849c50ed209d77689@syzkaller.appspotmail.com
Fixes: dcda165706b9 ("Bluetooth: hci_core: Fix build warnings")
Signed-off-by: Edward AD <twuufnxlz@gmail.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bluetooth/hci_sock.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 1d249d839819..3cc66b245602 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -439,7 +439,7 @@ static struct sk_buff *create_monitor_event(struct hci_dev *hdev, int event) ni->type = hdev->dev_type; ni->bus = hdev->bus; bacpy(&ni->bdaddr, &hdev->bdaddr); - memcpy(ni->name, hdev->name, 8); + memcpy(ni->name, hdev->name, strlen(hdev->name)); opcode = cpu_to_le16(HCI_MON_NEW_INDEX); break; |