diff options
| author | Xiaodong Liu <xiaodong.liu@intel.com> | 2016-04-12 09:45:51 (GMT) |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-04-15 14:13:56 (GMT) |
| commit | 0851561d9c965df086ef8a53f981f5f95a57c2c8 (patch) | |
| tree | 8d17cbefa9079bd56fc7fb3866290f0bd19c223f | |
| parent | 6f0904ada402a45b3a0a3b9b6507d91d3a9da67a (diff) | |
| download | linux-0851561d9c965df086ef8a53f981f5f95a57c2c8.tar.xz | |
crypto: sha1-mb - use corrcet pointer while completing jobs
In sha_complete_job, incorrect mcryptd_hash_request_ctx pointer is used
when check and complete other jobs. If the memory of first completed req
is freed, while still completing other jobs in the func, kernel will
crash since NULL pointer is assigned to RIP.
Cc: <stable@vger.kernel.org>
Signed-off-by: Xiaodong Liu <xiaodong.liu@intel.com>
Acked-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | arch/x86/crypto/sha-mb/sha1_mb.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/crypto/sha-mb/sha1_mb.c b/arch/x86/crypto/sha-mb/sha1_mb.c index a8a0224..081255c 100644 --- a/arch/x86/crypto/sha-mb/sha1_mb.c +++ b/arch/x86/crypto/sha-mb/sha1_mb.c @@ -453,10 +453,10 @@ static int sha_complete_job(struct mcryptd_hash_request_ctx *rctx, req = cast_mcryptd_ctx_to_req(req_ctx); if (irqs_disabled()) - rctx->complete(&req->base, ret); + req_ctx->complete(&req->base, ret); else { local_bh_disable(); - rctx->complete(&req->base, ret); + req_ctx->complete(&req->base, ret); local_bh_enable(); } } |