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authorAnant Thazhemadam <anant.thazhemadam@gmail.com>2020-10-16 18:44:47 +0530
committerMarcel Holtmann <marcel@holtmann.org>2020-11-09 14:04:00 +0100
commit855af2d74c870d747bf53509f8b2d7b9dc9ee2c3 (patch)
treefacd410777015c07c244889b65308afb970d831c /drivers/bluetooth
parentcca342d98bef68151a80b024f7bf5f388d1fbdea (diff)
downloadlinux-855af2d74c870d747bf53509f8b2d7b9dc9ee2c3.tar.bz2
Bluetooth: hci_h5: fix memory leak in h5_close
When h5_close() is called, h5 is directly freed when !hu->serdev. However, h5->rx_skb is not freed, which causes a memory leak. Freeing h5->rx_skb and setting it to NULL, fixes this memory leak. Fixes: ce945552fde4 ("Bluetooth: hci_h5: Add support for serdev enumerated devices") Reported-by: syzbot+6ce141c55b2f7aafd1c4@syzkaller.appspotmail.com Tested-by: syzbot+6ce141c55b2f7aafd1c4@syzkaller.appspotmail.com Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/hci_h5.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
index a10d710fc3f1..376164cdf2ea 100644
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -245,6 +245,9 @@ static int h5_close(struct hci_uart *hu)
skb_queue_purge(&h5->rel);
skb_queue_purge(&h5->unrel);
+ kfree_skb(h5->rx_skb);
+ h5->rx_skb = NULL;
+
if (h5->vnd && h5->vnd->close)
h5->vnd->close(h5);