Patch "KEYS: encrypted: Add check for strsep" has been added to the 6.6-stable tree

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This is a note to let you know that I've just added the patch titled

    KEYS: encrypted: Add check for strsep

to the 6.6-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     keys-encrypted-add-check-for-strsep.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 95de49cf9fcb150ac38e374d317df70e4dc5fe0f
Author: Chen Ni <nichen@xxxxxxxxxxx>
Date:   Wed Nov 8 07:36:27 2023 +0000

    KEYS: encrypted: Add check for strsep
    
    [ Upstream commit b4af096b5df5dd131ab796c79cedc7069d8f4882 ]
    
    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@xxxxxxxxxxx>
    Signed-off-by: Mimi Zohar <zohar@xxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/security/keys/encrypted-keys/encrypted.c b/security/keys/encrypted-keys/encrypted.c
index 1e313982af02..fea7e0937150 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:




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