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Message-Id: <20131003040636.701703320@linuxfoundation.org> Date: Wed, 2 Oct 2013 21:08:27 -0700 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Kent Overstreet <kmo@...erainc.com>, Jens Axboe <axboe@...nel.dk>, Linus Torvalds <torvalds@...ux-foundation.org> Subject: [ 01/57] block: Fix bio_copy_data() 3.11-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kent Overstreet <kmo@...erainc.com> commit 2f6cf0de0281d210061ce976f2d42d246adc75bb upstream. The memcpy() in bio_copy_data() was using the wrong offset vars, leading to data corruption in weird unusual setups. Signed-off-by: Kent Overstreet <kmo@...erainc.com> Cc: Jens Axboe <axboe@...nel.dk> Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- fs/bio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/fs/bio.c +++ b/fs/bio.c @@ -917,8 +917,8 @@ void bio_copy_data(struct bio *dst, stru src_p = kmap_atomic(src_bv->bv_page); dst_p = kmap_atomic(dst_bv->bv_page); - memcpy(dst_p + dst_bv->bv_offset, - src_p + src_bv->bv_offset, + memcpy(dst_p + dst_offset, + src_p + src_offset, bytes); kunmap_atomic(dst_p); -- 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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