8abaae62f3
If ib_umem_get() is called with a size equal to 0 and an non-page aligned address, one page will be pinned and a 0-sized umem will be returned to the caller. This should not be allowed: it's not expected for a memory region to have a size equal to 0. This patch adds a check to explicitly refuse to register a 0-sized region. Link: http://mid.gmane.org/cover.1428929103.git.ydroneaud@opteya.com Cc: <stable@vger.kernel.org> Cc: Shachar Raindel <raindel@mellanox.com> Cc: Jack Morgenstein <jackm@mellanox.com> Cc: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Yann Droneaud <ydroneaud@opteya.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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