From b4af096b5df5dd131ab796c79cedc7069d8f4882 Mon Sep 17 00:00:00 2001
From: Chen Ni <nichen@iscas.ac.cn>
Date: Wed, 8 Nov 2023 07:36:27 +0000
Subject: [PATCH] KEYS: encrypted: Add check for strsep
Git-commit: b4af096b5df5dd131ab796c79cedc7069d8f4882
Patch-mainline: v6.8-rc1
References: git-fixes
Add check for strsep() in order to transfer the error.
Fixes: cd3bc044af48 ("KEYS: encrypted: Instantiate key with user-provided decrypted data")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
security/keys/encrypted-keys/encrypted.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/security/keys/encrypted-keys/encrypted.c b/security/keys/encrypted-keys/encrypted.c
index 8af2136069d2..76f55dd13cb8 100644
--- a/security/keys/encrypted-keys/encrypted.c
+++ b/security/keys/encrypted-keys/encrypted.c
@@ -237,6 +237,10 @@ static int datablob_parse(char *datablob, const char **format,
break;
}
*decrypted_data = strsep(&datablob, " \t");
+ if (!*decrypted_data) {
+ pr_info("encrypted_key: decrypted_data is missing\n");
+ break;
+ }
ret = 0;
break;
case Opt_load:
--
2.35.3