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authorLuiz Augusto von Dentz <[email protected]>2022-02-14 17:59:38 -0800
committerMarcel Holtmann <[email protected]>2022-02-24 21:05:21 +0100
commit29fb608396d6a62c1b85acc421ad7a4399085b9f (patch)
treef3f5c91a3ff17fbaa505e913512d76133f709e5e
parentfa78d2d1d64f147062e384a4a10a26a5f89944b5 (diff)
Bluetooth: Fix bt_skb_sendmmsg not allocating partial chunks
Since bt_skb_sendmmsg can be used with the likes of SOCK_STREAM it shall return the partial chunks it could allocate instead of freeing everything as otherwise it can cause problems like bellow. Fixes: 81be03e026dc ("Bluetooth: RFCOMM: Replace use of memcpy_from_msg with bt_skb_sendmmsg") Reported-by: Paul Menzel <[email protected]> Link: https://lore.kernel.org/r/[email protected] BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215594 Signed-off-by: Luiz Augusto von Dentz <[email protected]> Tested-by: Paul Menzel <[email protected]> (Nokia N9 (MeeGo/Harmattan) Signed-off-by: Marcel Holtmann <[email protected]>
-rw-r--r--include/net/bluetooth/bluetooth.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 4b3d0b16c185..a647e5fabdbd 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -506,8 +506,7 @@ static inline struct sk_buff *bt_skb_sendmmsg(struct sock *sk,
tmp = bt_skb_sendmsg(sk, msg, len, mtu, headroom, tailroom);
if (IS_ERR(tmp)) {
- kfree_skb(skb);
- return tmp;
+ return skb;
}
len -= tmp->len;