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Merge git://git.samba.org/sfrench/cifs-2.6 

* git://git.samba.org/sfrench/cifs-2.6:
  cifs: Fix oops in session setup code for null user mounts
  [CIFS] Update cifs Kconfig title to match removal of experimental dependency
  cifs: fix printk format warnings
  cifs: check offset in decode_ntlmssp_challenge()
  cifs: NULL dereference on allocation failure
This commit is contained in:
Linus Torvalds 2012-02-07 14:07:20 -08:00
parent e25c173379 de47a4176c
commit 84f8bf38b9
3 changed files with 15 additions and 14 deletions
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4
fs/cifs/Kconfig
View File

@ -139,7 +139,7 @@ config CIFS_DFS_UPCALL
points. If unsure, say N.
config CIFS_FSCACHE
bool "Provide CIFS client caching support (EXPERIMENTAL)"
bool "Provide CIFS client caching support"
depends on CIFS=m && FSCACHE || CIFS=y && FSCACHE=y
help
Makes CIFS FS-Cache capable. Say Y here if you want your CIFS data
@ -147,7 +147,7 @@ config CIFS_FSCACHE
manager. If unsure, say N.
config CIFS_ACL
bool "Provide CIFS ACL support (EXPERIMENTAL)"
bool "Provide CIFS ACL support"
depends on CIFS_XATTR && KEYS
help
Allows to fetch CIFS/NTFS ACL from the server. The DACL blob

14
fs/cifs/connect.c
View File

@ -2142,14 +2142,14 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
len = delim - payload;
if (len > MAX_USERNAME_SIZE || len <= 0) {
cFYI(1, "Bad value from username search (len=%ld)", len);
cFYI(1, "Bad value from username search (len=%zd)", len);
rc = -EINVAL;
goto out_key_put;
}
vol->username = kstrndup(payload, len, GFP_KERNEL);
if (!vol->username) {
cFYI(1, "Unable to allocate %ld bytes for username", len);
cFYI(1, "Unable to allocate %zd bytes for username", len);
rc = -ENOMEM;
goto out_key_put;
}
@ -2157,7 +2157,7 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
len = key->datalen - (len + 1);
if (len > MAX_PASSWORD_SIZE || len <= 0) {
cFYI(1, "Bad len for password search (len=%ld)", len);
cFYI(1, "Bad len for password search (len=%zd)", len);
rc = -EINVAL;
kfree(vol->username);
vol->username = NULL;
@ -2167,7 +2167,7 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
++delim;
vol->password = kstrndup(delim, len, GFP_KERNEL);
if (!vol->password) {
cFYI(1, "Unable to allocate %ld bytes for password", len);
cFYI(1, "Unable to allocate %zd bytes for password", len);
rc = -ENOMEM;
kfree(vol->username);
vol->username = NULL;
@ -3857,10 +3857,8 @@ cifs_construct_tcon(struct cifs_sb_info *cifs_sb, uid_t fsuid)
struct smb_vol *vol_info;
vol_info = kzalloc(sizeof(*vol_info), GFP_KERNEL);
if (vol_info == NULL) {
tcon = ERR_PTR(-ENOMEM);
goto out;
}
if (vol_info == NULL)
return ERR_PTR(-ENOMEM);
vol_info->local_nls = cifs_sb->local_nls;
vol_info->linux_uid = fsuid;

11
fs/cifs/sess.c
View File

@ -246,16 +246,15 @@ static void ascii_ssetup_strings(char **pbcc_area, struct cifs_ses *ses,
/* copy user */
/* BB what about null user mounts - check that we do this BB */
/* copy user */
if (ses->user_name != NULL)
if (ses->user_name != NULL) {
strncpy(bcc_ptr, ses->user_name, MAX_USERNAME_SIZE);
bcc_ptr += strnlen(ses->user_name, MAX_USERNAME_SIZE);
}
/* else null user mount */
bcc_ptr += strnlen(ses->user_name, MAX_USERNAME_SIZE);
*bcc_ptr = 0;
bcc_ptr++; /* account for null termination */
/* copy domain */
if (ses->domainName != NULL) {
strncpy(bcc_ptr, ses->domainName, 256);
bcc_ptr += strnlen(ses->domainName, 256);
@ -395,6 +394,10 @@ static int decode_ntlmssp_challenge(char *bcc_ptr, int blob_len,
ses->ntlmssp->server_flags = le32_to_cpu(pblob->NegotiateFlags);
tioffset = le32_to_cpu(pblob->TargetInfoArray.BufferOffset);
tilen = le16_to_cpu(pblob->TargetInfoArray.Length);
if (tioffset > blob_len || tioffset + tilen > blob_len) {
cERROR(1, "tioffset + tilen too high %u + %u", tioffset, tilen);
return -EINVAL;
}
if (tilen) {
ses->auth_key.response = kmalloc(tilen, GFP_KERNEL);
if (!ses->auth_key.response) {