5.10-stable review patch. If anyone has any objections, please let me know.
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From: Luiz Augusto von Dentz luiz.von.dentz@intel.com
commit 1e9683c9b6ca88cc9340cdca85edd6134c8cffe3 upstream.
Due to 59b047bc98084f8af2c41483e4d68a5adf2fa7f7 there could be keys stored with the wrong address type so this attempt to detect it and ignore them instead of just failing to load all keys.
Cc: stable@vger.kernel.org Link: https://github.com/bluez/bluez/issues/875 Fixes: 59b047bc9808 ("Bluetooth: MGMT/SMP: Fix address type when using SMP over BREDR/LE") Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/bluetooth/mgmt.c | 37 +++++++++++++++++++------------------ 1 file changed, 19 insertions(+), 18 deletions(-)
--- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -2370,15 +2370,6 @@ static int load_link_keys(struct sock *s bt_dev_dbg(hdev, "debug_keys %u key_count %u", cp->debug_keys, key_count);
- for (i = 0; i < key_count; i++) { - struct mgmt_link_key_info *key = &cp->keys[i]; - - if (key->addr.type != BDADDR_BREDR || key->type > 0x08) - return mgmt_cmd_status(sk, hdev->id, - MGMT_OP_LOAD_LINK_KEYS, - MGMT_STATUS_INVALID_PARAMS); - } - hci_dev_lock(hdev);
hci_link_keys_clear(hdev); @@ -2403,6 +2394,19 @@ static int load_link_keys(struct sock *s continue; }
+ if (key->addr.type != BDADDR_BREDR) { + bt_dev_warn(hdev, + "Invalid link address type %u for %pMR", + key->addr.type, &key->addr.bdaddr); + continue; + } + + if (key->type > 0x08) { + bt_dev_warn(hdev, "Invalid link key type %u for %pMR", + key->type, &key->addr.bdaddr); + continue; + } + /* Always ignore debug keys and require a new pairing if * the user wants to use them. */ @@ -5993,15 +5997,6 @@ static int load_long_term_keys(struct so
bt_dev_dbg(hdev, "key_count %u", key_count);
- for (i = 0; i < key_count; i++) { - struct mgmt_ltk_info *key = &cp->keys[i]; - - if (!ltk_is_valid(key)) - return mgmt_cmd_status(sk, hdev->id, - MGMT_OP_LOAD_LONG_TERM_KEYS, - MGMT_STATUS_INVALID_PARAMS); - } - hci_dev_lock(hdev);
hci_smp_ltks_clear(hdev); @@ -6017,6 +6012,12 @@ static int load_long_term_keys(struct so &key->addr.bdaddr); continue; } + + if (!ltk_is_valid(key)) { + bt_dev_warn(hdev, "Invalid LTK for %pMR", + &key->addr.bdaddr); + continue; + }
switch (key->type) { case MGMT_LTK_UNAUTHENTICATED: