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Re: [Qemu-devel] [PATCH 1/4] block: Make qiov match the request size unt


From: Max Reitz
Subject: Re: [Qemu-devel] [PATCH 1/4] block: Make qiov match the request size until EOF
Date: Sat, 05 Jul 2014 21:19:25 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0

On 04.07.2014 17:55, Kevin Wolf wrote:
If a read request goes across EOF, the block driver sees a shortened
request that stops at EOF (the rest is memsetted in block.c), however
the original qiov was used for this request.

This patch makes the qiov size match the request size, avoiding a
potential buffer overflow in raw-posix.

Signed-off-by: Kevin Wolf <address@hidden>
---
  block.c | 11 ++++++++++-
  1 file changed, 10 insertions(+), 1 deletion(-)

Reviewed-by: Max Reitz <address@hidden>



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