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(parent: 7fa816b) | patch
net: fix a kernel infoleak in x25 module
authorKangjie Lu <kangjielu@gmail.com>
Sun, 8 May 2016 16:10:14 +0000 (12:10 -0400)
committerDavid S. Miller <davem@davemloft.net>
Tue, 10 May 2016 02:45:33 +0000 (22:45 -0400)
commit79e48650320e6fba48369fccf13fd045315b19b8
treee1e18aca10b03bde03c48990c7669c90219a209ctree | snapshot
parent7fa816b92c52e2c304f2ff6401e0d51e1d229ca5commit | diff
net: fix a kernel infoleak in x25 module

Stack object "dte_facilities" is allocated in x25_rx_call_request(),
which is supposed to be initialized in x25_negotiate_facilities.
However, 5 fields (8 bytes in total) are not initialized. This
object is then copied to userland via copy_to_user, thus infoleak
occurs.

Signed-off-by: Kangjie Lu <kjlu@gatech.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/x25/x25_facilities.c diff | blob | history
Domain: System / Kernel;