6.6-stable review patch. If anyone has any objections, please let me know.
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From: Chen Ni nichen@iscas.ac.cn
[ 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@iscas.ac.cn Signed-off-by: Mimi Zohar zohar@linux.ibm.com Signed-off-by: Sasha Levin sashal@kernel.org --- 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 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: