Re: drivers/net/chelsio/sge.c: two array overflows
From: Scott Bardone <hidden>
Date: 2006-03-17 18:48:01
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Thanks Pete, This is correct, the array should contain 3 elements. The bug was we were accessing a 4th element ([3]) which did not exist. We should be modifying the last element ([2]) instead. -Scott Hans-Peter Jansen wrote:
[from the nitpick department..] Hi Jeff, hi Scott, Adrian wrote:quoted
The Coverity checker spotted the following two array overflows in drivers/net/chelsio/sge.c (in both cases, the arrays contain 3 elements):Am Freitag, 17. März 2006 01:21 schrieb Jeff Garzik:quoted
Scott Bardone wrote:quoted
Adrian, This is a bug. The array should contain 2 elements. Attached is a patch which fixes it. Thanks. Signed-off-by: Scott Bardone <redacted>applied. please avoid attachments and use a proper patch description in the future. I had to hand-edit and hand-apply your patch.where you wrote in kernel tree commit 347a444e687b5f8cf0f6485704db1c6024d3: This is a bug. The array should contain 2 elements. Here is the fix. If I'm not completely off the track, you both committed a description off by one error: since the patch doesn't change the array size, it's presumely¹ still 3 elements, where index 2 references the last one. Here's hopefully a better patch description: Fixed off by one thinko in stats accounting, spotted by Coverity checker, notified by Adrian "The Cleanman" Bunk. SCR, Pete ¹) otherwise, it's still off by one..