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    Subject[PATCH 4.17 45/45] crypto: omap-sham - fix memleak
    Date
    4.17-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Bin Liu <b-liu@ti.com>

    commit 9dbc8a0328efa485a6f5b68b867f9f523a3fbeff upstream.

    Fixes: 8043bb1ae03cb ("crypto: omap-sham - convert driver logic to use sgs for data xmit")

    The memory pages freed in omap_sham_finish_req() were less than those
    allocated in omap_sham_copy_sgs().

    Cc: stable@vger.kernel.org
    Signed-off-by: Bin Liu <b-liu@ti.com>
    Acked-by: Tero Kristo <t-kristo@ti.com>
    Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/crypto/omap-sham.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- a/drivers/crypto/omap-sham.c
    +++ b/drivers/crypto/omap-sham.c
    @@ -1087,7 +1087,7 @@ static void omap_sham_finish_req(struct

    if (test_bit(FLAGS_SGS_COPIED, &dd->flags))
    free_pages((unsigned long)sg_virt(ctx->sg),
    - get_order(ctx->sg->length));
    + get_order(ctx->sg->length + ctx->bufcnt));

    if (test_bit(FLAGS_SGS_ALLOCED, &dd->flags))
    kfree(ctx->sg);

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