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Subject[PATCH] fs: cifs: cifsencrypt.c: Cleaning up missing null-terminate in conjunction with strncpy
Date
Because the string is zeroed before, it's better to just copy one character less, instead of using strlcpy in this case.

This was found using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
---
fs/cifs/cifsencrypt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 4934347..dcca8b3 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -307,7 +307,7 @@ int calc_lanman_hash(const char *password, const char *cryptkey, bool encrypt,

memset(password_with_pad, 0, CIFS_ENCPWD_SIZE);
if (password)
- strncpy(password_with_pad, password, CIFS_ENCPWD_SIZE);
+ strncpy(password_with_pad, password, CIFS_ENCPWD_SIZE - 1);

if (!encrypt && global_secflags & CIFSSEC_MAY_PLNTXT) {
memcpy(lnm_session_key, password_with_pad,
--
1.7.10.4


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