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authorPatrick Wildt <patrick@blueri.se>2020-05-07 02:13:18 +0200
committerHeinrich Schuchardt <xypron.glpk@gmx.de>2020-05-07 18:23:16 +0200
commit9ad15227bb92acc2bf73c60da1bcf2ae3774246d (patch)
tree60080d14f1dfae6b98e72a21bd7c0ad81fec906b
parent42a426e027df472714e8d6209cafac291935c331 (diff)
efi_loader: efi_variable_parse_signature() returns NULL on error
efi_variable_parse_signature() returns NULL on error, so IS_ERR() is an incorrect check. The goto err leads to pkcs7_free_message(), which works fine on a NULL ptr. Signed-off-by: Patrick Wildt <patrick@blueri.se> Reviewed-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
-rw-r--r--lib/efi_loader/efi_variable.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/lib/efi_loader/efi_variable.c b/lib/efi_loader/efi_variable.c
index 568bd3ccfd..60c1201757 100644
--- a/lib/efi_loader/efi_variable.c
+++ b/lib/efi_loader/efi_variable.c
@@ -524,9 +524,8 @@ static efi_status_t efi_variable_authenticate(u16 *variable,
var_sig = efi_variable_parse_signature(auth->auth_info.cert_data,
auth->auth_info.hdr.dwLength
- sizeof(auth->auth_info));
- if (IS_ERR(var_sig)) {
+ if (!var_sig) {
debug("Parsing variable's signature failed\n");
- var_sig = NULL;
goto err;
}