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David S. Miller 676d23690f net: Fix use after free by removing length arg from sk_data_ready callbacks. ... Several spots in the kernel perform a sequence like: skb_queue_tail(&sk->s_receive_queue, skb); sk->sk_data_ready(sk, skb->len); But at the moment we place the SKB onto the socket receive queue it can be consumed and freed up. So this skb->len access is potentially to freed up memory. Furthermore, the skb->len can be modified by the consumer so it is possible that the value isn't accurate. And finally, no actual implementation of this callback actually uses the length argument. And since nobody actually cared about it's value, lots of call sites pass arbitrary values in such as '0' and even '1'. So just remove the length argument from the callback, that way there is no confusion whatsoever and all of these use-after-free cases get fixed as a side effect. Based upon a patch by Eric Dumazet and his suggestion to audit this issue tree-wide. Signed-off-by: David S. Miller <davem@davemloft.net>		11 years ago
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bnep	…
cmtp	…
hidp	Merge branch 'for-3.15/hid-core-ll-transport-cleanup' into for-linus	11 years ago
rfcomm	net: Fix use after free by removing length arg from sk_data_ready callbacks.	11 years ago
6lowpan.c	…
6lowpan.h	…
Kconfig	Bluetooth: make sure 6LOWPAN_IPHC is built-in if needed	11 years ago
Makefile	…
a2mp.c	…
a2mp.h	…
af_bluetooth.c	…
amp.c	…
amp.h	…
hci_conn.c	Bluetooth: Enforce strict Secure Connections Only mode security	11 years ago
hci_core.c	…
hci_event.c	Bluetooth: Add missing cmd_status handler for LE_Start_Encryption	11 years ago
hci_sock.c	…
hci_sysfs.c	…
l2cap_core.c	…
l2cap_sock.c	net: Fix use after free by removing length arg from sk_data_ready callbacks.	11 years ago
lib.c	…
mgmt.c	Bluetooth: Fix address value for early disconnection events	11 years ago
sco.c	net: Fix use after free by removing length arg from sk_data_ready callbacks.	11 years ago
smp.c	Bluetooth: Remove unnecessary assignment in SMP	11 years ago
smp.h	Bluetooth: Remove LTK re-encryption procedure	11 years ago