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Vignesh Raman 07b41b3449 Bluetooth: Avoid use of session socket after the session gets freed 
commit 32333edb82 upstream.

The commits 08c30aca9e "Bluetooth: Remove
RFCOMM session refcnt" and 8ff52f7d04
"Bluetooth: Return RFCOMM session ptrs to avoid freed session"
allow rfcomm_recv_ua and rfcomm_session_close to delete the session
(and free the corresponding socket) and propagate NULL session pointer
to the upper callers.

Additional fix is required to terminate the loop in rfcomm_process_rx
function to avoid use of freed 'sk' memory.

The issue is only reproducible with kernel option CONFIG_PAGE_POISONING
enabled making freed memory being changed and filled up with fixed char
value used to unmask use-after-free issues.

Signed-off-by: Vignesh Raman <Vignesh_Raman@mentor.com>
Signed-off-by: Vitaly Kuzmichev <Vitaly_Kuzmichev@mentor.com>
Acked-by: Dean Jenkins <Dean_Jenkins@mentor.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-17 09:04:00 -07:00
..
9p 9p/trans_virtio.c: Fix broken zero-copy on vmalloc() buffers 2014-03-06 21:30:03 -08:00
802 net/802/mrp: fix lockdep splat 2013-05-14 13:02:30 -07:00
8021q 8021q: fix a potential memory leak 2014-07-28 08:00:04 -07:00
appletalk appletalk: Fix socket referencing in skb 2014-07-28 08:00:05 -07:00
atm net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
ax25 net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
batman-adv batman-adv: set up network coding packet handlers during module init 2013-11-20 12:27:47 -08:00
bluetooth Bluetooth: Avoid use of session socket after the session gets freed 2014-09-17 09:04:00 -07:00
bridge bridge: Handle IFLA_ADDRESS correctly when creating bridge device 2014-05-30 21:52:16 -07:00
caif net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
can net: Use netlink_ns_capable to verify the permisions of netlink messages 2014-06-26 15:12:37 -04:00
ceph libceph: fix corruption when using page_count 0 page in rbd 2014-06-07 13:25:40 -07:00
core iovec: make sure the caller actually wants anything in memcpy_fromiovecend 2014-08-14 09:24:15 +08:00
dcb net: Use netlink_ns_capable to verify the permisions of netlink messages 2014-06-26 15:12:37 -04:00
dccp net:dccp: do not report ICMP redirects to user space 2013-10-13 16:08:30 -07:00
decnet net: Use netlink_ns_capable to verify the permisions of netlink messages 2014-06-26 15:12:37 -04:00
dns_resolver dns_resolver: Null-terminate the right string 2014-07-28 08:00:06 -07:00
dsa dsa: fix freeing of sparse port allocation 2013-03-25 12:23:41 -04:00
ethernet net: add ETH_P_802_3_MIN 2013-03-28 01:20:42 -04:00
ieee802154 6lowpan: fix lockdep splats 2014-03-06 21:30:02 -08:00
ipv4 tcp: Fix integer-overflow in TCP vegas 2014-08-14 09:24:15 +08:00
ipv6 ip: make IP identifiers less predictable 2014-08-14 09:24:15 +08:00
ipx net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
irda net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
iucv af_iucv: wrong mapping of sent and confirmed skbs 2014-06-30 20:09:40 -07:00
key net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
l2tp net/l2tp: don't fall back on UDP [get|set]sockopt 2014-08-07 14:30:27 -07:00
lapb net/lapb: remove depends on CONFIG_EXPERIMENTAL 2013-01-11 11:40:01 -08:00
llc net: llc: fix use after free in llc_ui_recvmsg 2014-01-15 15:28:50 -08:00
mac80211 Revert "mac80211: move "bufferable MMPDU" check to fix AP mode scan" 2014-08-07 14:30:27 -07:00
mac802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-30 03:55:20 -04:00
netfilter inetpeer: get rid of ip_id_count 2014-08-14 09:24:15 +08:00
netlabel netlabel: improve domain mapping validation 2013-05-19 14:49:55 -07:00
netlink netlink: Fix handling of error from netlink_dump(). 2014-07-28 08:00:05 -07:00
netrom net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
nfc net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
openvswitch openvswitch: Remove unneeded ovs_netdev_get_ifindex() 2013-04-30 00:19:11 -04:00
packet net: Use netlink_ns_capable to verify the permisions of netlink messages 2014-06-26 15:12:37 -04:00
phonet net: Use netlink_ns_capable to verify the permisions of netlink messages 2014-06-26 15:12:37 -04:00
rds rds: prevent dereference of a NULL device in rds_iw_laddr_check 2014-04-14 06:42:18 -07:00
rfkill Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2013-04-22 14:58:14 -04:00
rose net: rose: restore old recvmsg behavior 2014-01-15 15:28:49 -08:00
rxrpc net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
sched net: Use netlink_ns_capable to verify the permisions of netlink messages 2014-06-26 15:12:37 -04:00
sctp sctp: fix possible seqlock seadlock in sctp_packet_transmit() 2014-08-14 09:24:15 +08:00
sunrpc svcrdma: Select NFSv4.1 backchannel transport based on forward channel 2014-09-05 16:28:37 -07:00
tipc tipc: clear 'next'-pointer of message fragments before reassembly 2014-07-28 08:00:05 -07:00
unix net: unix: non blocking recvmsg() should not return -EINTR 2014-04-14 06:42:15 -07:00
vmw_vsock net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
wimax
wireless cfg80211: fix mic_failure tracing 2014-08-07 14:30:25 -07:00
x25 net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
xfrm net: Use netlink_ns_capable to verify the permisions of netlink messages 2014-06-26 15:12:37 -04:00
compat.c net: sendmsg: fix NULL pointer dereference 2014-08-14 09:24:15 +08:00
Kconfig netlink: kconfig: move mmap i/o into netlink kconfig 2013-05-01 15:02:42 -04:00
Makefile VSOCK: Introduce VM Sockets 2013-02-10 19:41:08 -05:00
nonet.c
socket.c net: socket: error on a negative msg_namelen 2014-04-14 06:42:16 -07:00
sysctl_net.c net: Update the sysctl permissions handler to test effective uid/gid 2013-10-13 16:08:34 -07:00