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net: avoid infinite loop when receiving packets(CVE-2015-5278)
authorP J P <pjp@fedoraproject.org>
Tue, 15 Sep 2015 11:16:59 +0000 (16:46 +0530)
committerStefan Hajnoczi <stefanha@redhat.com>
Tue, 15 Sep 2015 11:51:14 +0000 (12:51 +0100)
commit737d2b3c41d59eb8f94ab7eb419b957938f24943
treede751aa25c0ae9b3ddc10e5f142c3e703a4d991btree | snapshot
parent9bbdbc66e5765068dce76e9269dce4547afd8ad4commit | diff
net: avoid infinite loop when receiving packets(CVE-2015-5278)

Ne2000 NIC uses ring buffer of NE2000_MEM_SIZE(49152)
bytes to process network packets. While receiving packets
via ne2000_receive() routine, a local 'index' variable
could exceed the ring buffer size, leading to an infinite
loop situation.

Reported-by: Qinghao Tang <luodalongde@gmail.com>
Signed-off-by: P J P <pjp@fedoraproject.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
hw/net/ne2000.c diff | blob | history
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