Re: Slab corruption in 2.6.16-rc5-mm2

From: Linus Torvalds
Date: Mon Mar 06 2006 - 22:18:17 EST




On Mon, 6 Mar 2006, Mike Christie wrote:
> - buffer = kmalloc(32, GFP_KERNEL | SR_GFP_DMA(cd));
> + buffer = kzalloc(32, GFP_KERNEL | SR_GFP_DMA(cd));
> if (!buffer)
> return -ENOMEM;
>
> - memset(&cgc, 0, sizeof(struct packet_command));
...
> - buffer = kmalloc(32, GFP_KERNEL | SR_GFP_DMA(cd));
> + buffer = kzalloc(32, GFP_KERNEL | SR_GFP_DMA(cd));
> if (!buffer)
> return -ENOMEM;
>
> - memset(&cgc, 0, sizeof(struct packet_command));

> When someone converted the *buffer* allocation to kzalloc they
> also removed the the memset for the *packet_cmmand* struct.
>
> The
>
> memset(&cgc, 0, sizeof(struct packet_command));
>
> should be added back I think.

Good eyes. I bet that's it.

Linus
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