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| author | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2024-02-28 11:17:24 -0500 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2024-03-06 17:26:23 -0500 |
| commit | 79f4127a502c5905f04da1f20a7bbe07103fb77c (patch) | |
| tree | 3f3ba4d8ffd080adc190ec940a7d4fb6c4b0ea8b /drivers/bluetooth/btusb.c | |
| parent | a6e06258f4c31eba0fcd503e19828b5f8fe7b08b (diff) | |
| download | linux-stable-79f4127a502c5905f04da1f20a7bbe07103fb77c.tar.gz linux-stable-79f4127a502c5905f04da1f20a7bbe07103fb77c.tar.bz2 linux-stable-79f4127a502c5905f04da1f20a7bbe07103fb77c.zip | |
Bluetooth: btusb: Fix memory leak
This checks if CONFIG_DEV_COREDUMP is enabled before attempting to clone
the skb and also make sure btmtk_process_coredump frees the skb passed
following the same logic.
Fixes: 0b7015132878 ("Bluetooth: btusb: mediatek: add MediaTek devcoredump support")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'drivers/bluetooth/btusb.c')
| -rw-r--r-- | drivers/bluetooth/btusb.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index edfb49bbaa28..f390080e56ca 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -3281,7 +3281,6 @@ static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb) { struct btusb_data *data = hci_get_drvdata(hdev); u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle); - struct sk_buff *skb_cd; switch (handle) { case 0xfc6f: /* Firmware dump from device */ @@ -3294,9 +3293,12 @@ static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb) * for backward compatibility, so we have to clone the packet * extraly for the in-kernel coredump support. */ - skb_cd = skb_clone(skb, GFP_ATOMIC); - if (skb_cd) - btmtk_process_coredump(hdev, skb_cd); + if (IS_ENABLED(CONFIG_DEV_COREDUMP)) { + struct sk_buff *skb_cd = skb_clone(skb, GFP_ATOMIC); + + if (skb_cd) + btmtk_process_coredump(hdev, skb_cd); + } fallthrough; case 0x05ff: /* Firmware debug logging 1 */ |