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pefile: Fix the failure of calculation for digest 

Commit e68503bd68 forgot to set digest_len and thus cause the following
error reported by kexec when launching a crash kernel:

	kexec_file_load failed: Bad message

Fixes: e68503bd68 (KEYS: Generalise system_verify_data() to provide access to internal content)
Signed-off-by: Lans Zhang <jia.zhang@windriver.com>
Tested-by: Dave Young <dyoung@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
cc: kexec@lists.infradead.org
cc: linux-crypto@vger.kernel.org
Signed-off-by: James Morris <james.l.morris@oracle.com>
steinar/wifi_calib_4_9_kernel
Lans Zhang 2016-07-18 00:10:47 +01:00 committed by James Morris
parent a46e667887
commit d128471a14
1 changed files with 6 additions and 1 deletions
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7
crypto/asymmetric_keys/mscode_parser.c
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@ -124,5 +124,10 @@ int mscode_note_digest(void *context, size_t hdrlen,
struct pefile_context *ctx = context;
ctx->digest = kmemdup(value, vlen, GFP_KERNEL);
return ctx->digest ? 0 : -ENOMEM;
if (!ctx->digest)
return -ENOMEM;
ctx->digest_len = vlen;
return 0;
}