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commit0a16e24e34upstream. When F_SEAL_FUTURE_WRITE was introduced, it was overlooked that udmabuf must reject memfds with this flag, just like ones with F_SEAL_WRITE. Fix it by adding F_SEAL_FUTURE_WRITE to SEALS_DENIED. Fixes:ab3948f58f("mm/memfd: add an F_SEAL_FUTURE_WRITE seal to memfd") Cc: stable@vger.kernel.org Acked-by: Vivek Kasireddy <vivek.kasireddy@intel.com> Signed-off-by: Jann Horn <jannh@google.com> Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241204-udmabuf-fixes-v2-2-23887289de1c@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>