x86/speculation/mds: Add mitigation control for MDS

[mirror_ubuntu-bionic-kernel.git] / crypto / drbg.c

diff --git a/crypto/drbg.c b/crypto/drbg.c
index 4faa2781c964e290f8b28e752993b9a408d927b4..466a112a4446820ff655c3b72076c86d3c7e4f2d 100644 (file)
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -1134,8 +1134,10 @@ static inline void drbg_dealloc_state(struct drbg_state *drbg)
        if (!drbg)
                return;
        kzfree(drbg->Vbuf);
+       drbg->Vbuf = NULL;
        drbg->V = NULL;
        kzfree(drbg->Cbuf);
+       drbg->Cbuf = NULL;
        drbg->C = NULL;
        kzfree(drbg->scratchpadbuf);
        drbg->scratchpadbuf = NULL;