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authorJesse Brandeburg <jesse.brandeburg@intel.com>2010-01-19 14:15:59 +0000
committerDavid S. Miller <davem@davemloft.net>2010-01-20 16:21:23 -0800
commitb94b50289622e816adc9f94111cfc2679c80177c (patch)
tree9545a229c7ef2dbdcdc8300fd4d84ff3cafc7808 /drivers/net/e1000e/e1000.h
parent40a14deaf411592b57cb0720f0e8004293ab9865 (diff)
downloadlwn-b94b50289622e816adc9f94111cfc2679c80177c.tar.gz
lwn-b94b50289622e816adc9f94111cfc2679c80177c.zip
e1000e: enhance frame fragment detection
Originally patched by Neil Horman <nhorman@tuxdriver.com> e1000e could with a jumbo frame enabled interface, and packet split disabled, receive a packet that would overflow a single rx buffer. While in practice very hard to craft a packet that could abuse this, it is possible. this is related to CVE-2009-4538 Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> CC: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/e1000e/e1000.h')
-rw-r--r--drivers/net/e1000e/e1000.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h
index d6ee28f6ea08..d236efaf7478 100644
--- a/drivers/net/e1000e/e1000.h
+++ b/drivers/net/e1000e/e1000.h
@@ -421,6 +421,7 @@ struct e1000_info {
/* CRC Stripping defines */
#define FLAG2_CRC_STRIPPING (1 << 0)
#define FLAG2_HAS_PHY_WAKEUP (1 << 1)
+#define FLAG2_IS_DISCARDING (1 << 2)
#define E1000_RX_DESC_PS(R, i) \
(&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))