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Date: Mon, 20 Dec 2010 07:35:21 -0500 From: Ted Ts'o <tytso@....edu> To: Lukas Czerner <lczerner@...hat.com> Cc: linux-kernel@...r.kernel.org, sandeen@...hat.com Subject: Re: [PATCH] ext4: fix possible overflow in ext4_trim_fs() On Thu, Nov 25, 2010 at 03:11:17PM +0100, Lukas Czerner wrote: > When determining last group through ext4_get_group_no_and_offset() the > result may be wrong in cases when range->start and range-len are too > big, because it may overflow when summing up those two numbers. > > Fix that by checking range->len and limit its value to > ext4_blocks_count(). This commit was tested by myself with expected > result. > > Signed-off-by: Lukas Czerner <lczerner@...hat.com> Added to the ext4 patch queue. Thanks for the ping. - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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