Re: [PATCH] eCryptfs: infinite loop due to overflow in ecryptfs_write()

[Cong Wang]

On 01/19/2012 05:13 PM, Tyler Hicks wrote:
> From: Li Wang<liwang@xxxxxxxxxxx>
>
> ecryptfs_write() can enter an infinite loop when truncating a file to a
> size larger than 4G. This only happens on architectures where size_t is
> represented by 32 bits.
>
> This was caused by a size_t overflow due to it incorrectly being used to
> store the result of a calculation which uses potentially large values of
> type loff_t.
>
> [tyhicks@xxxxxxxxxxxxx: rewrite subject and commit message]
> Signed-off-by: Li Wang<liwang@xxxxxxxxxxx>
> Signed-off-by: Yunchuan Wen<wenyunchuan@xxxxxxxxxxxxxx>
> Cc: Cong Wang<xiyou.wangcong@xxxxxxxxx>
> Cc:<stable@xxxxxxxxxxxxxxx>
> Signed-off-by: Tyler Hicks<tyhicks@xxxxxxxxxxxxx>


Tyler, thanks for cleaning this up! Looks pretty good now.
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