malloc overlap?

jan_at_talentex.demon.co.uk
Date: 06/30/04

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    To: linux-kernel@vger.kernel.org
Date:	Wed, 30 Jun 2004 10:36:12 +0100

    This question is probably misplaced - sorry about that, but one has to start somewhere, and I think it isn't too far out. Here goes:

    I am developing a program that mallocs a struct, which contains a pointer to another struct, which gets malloced. Then I realloc the first buffer to be one element larger and assign something to an element in the second element - and this action overwrites part of the second level struct. After much tracing I am now sure that the buffers somehow have come to overlap. Is this a known error? I imagine that if the kernel had this kind of problem, it wouldn't run far, but surely memory allocation is handled in the kernel?

    I hope somebody can point me in the right direction - and thank you for helping! I am not on the list, so please reply directly.

    /jan

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  • Next message: Bart Hartgers: "Re: hwscan hangs on USB2 disk - SCSI_IOCTL_SEND_COMMAND - SOLVED"

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