[BUG][PATCH] e1000: Fix invalid memory reference
- From: Kenji Kaneshige <kaneshige.kenji@xxxxxxxxxxxxxx>
- Date: Tue, 13 Dec 2005 19:27:00 +0900
Hi,
I encountered a kernel panic which was caused by the invalid memory
access by e1000 driver. The following patch fixes this issue.
Thanks,
Kenji Kaneshige
This patch fixes invalid memory reference in the e1000 driver which
would cause kernel panic.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@xxxxxxxxxxxxxx>
drivers/net/e1000/e1000_param.c | 10 +++++++---
1 files changed, 7 insertions(+), 3 deletions(-)
Index: linux-2.6.15-rc5/drivers/net/e1000/e1000_param.c
===================================================================
--- linux-2.6.15-rc5.orig/drivers/net/e1000/e1000_param.c
+++ linux-2.6.15-rc5/drivers/net/e1000/e1000_param.c
@@ -545,7 +545,7 @@ e1000_check_fiber_options(struct e1000_a
static void __devinit
e1000_check_copper_options(struct e1000_adapter *adapter)
{
- int speed, dplx;
+ int speed, dplx, an;
int bd = adapter->bd_number;
{ /* Speed */
@@ -641,8 +641,12 @@ e1000_check_copper_options(struct e1000_
.p = an_list }}
};
- int an = AutoNeg[bd];
- e1000_validate_option(&an, &opt, adapter);
+ if (num_AutoNeg > bd) {
+ an = AutoNeg[bd];
+ e1000_validate_option(&an, &opt, adapter);
+ } else {
+ an = opt.def;
+ }
adapter->hw.autoneg_advertised = an;
}
-
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