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| author | Steve French | 2018-06-07 00:59:29 +0200 |
|---|---|---|
| committer | Steve French | 2018-06-07 15:36:39 +0200 |
| commit | c7c137b931b6894531003b5de888ad012dc37ba6 (patch) | |
| tree | 358e89116a84a27ee19436eee4ab07e847ea7e9c /fs/cifs/cifsproto.h | |
| parent | CIFS: Fix NULL ptr deref (diff) | |
| download | kernel-qcow2-linux-c7c137b931b6894531003b5de888ad012dc37ba6.tar.gz kernel-qcow2-linux-c7c137b931b6894531003b5de888ad012dc37ba6.tar.xz kernel-qcow2-linux-c7c137b931b6894531003b5de888ad012dc37ba6.zip | |
smb3: do not allow insecure cifs mounts when using smb3
if mounting as smb3 do not allow cifs (vers=1.0) or insecure vers=2.0
mounts.
For example:
root@smf-Thinkpad-P51:~/cifs-2.6# mount -t smb3 //127.0.0.1/scratch /mnt -o username=testuser,password=Testpass1
root@smf-Thinkpad-P51:~/cifs-2.6# umount /mnt
root@smf-Thinkpad-P51:~/cifs-2.6# mount -t smb3 //127.0.0.1/scratch /mnt -o username=testuser,password=Testpass1,vers=1.0
mount: /mnt: wrong fs type, bad option, bad superblock on //127.0.0.1/scratch ...
root@smf-Thinkpad-P51:~/cifs-2.6# dmesg | grep smb3
[ 4302.200122] CIFS VFS: vers=1.0 (cifs) not permitted when mounting with smb3
root@smf-Thinkpad-P51:~/cifs-2.6# mount -t smb3 //127.0.0.1/scratch /mnt -o username=testuser,password=Testpass1,vers=3.11
Signed-off-by: Steve French <stfrench@microsoft.com>
Acked-by: Pavel Shilovsky <pshilov@microsoft.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Reviewed-by: Sachin Prabhu <sprabhu@redhat.com>
Diffstat (limited to 'fs/cifs/cifsproto.h')
| -rw-r--r-- | fs/cifs/cifsproto.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 84765c8764bf..4e0d183c3d10 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -211,7 +211,7 @@ extern int cifs_setup_cifs_sb(struct smb_vol *pvolume_info, extern int cifs_match_super(struct super_block *, void *); extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info); extern struct smb_vol *cifs_get_volume_info(char *mount_data, - const char *devname); + const char *devname, bool is_smb3); extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *); extern void cifs_umount(struct cifs_sb_info *); extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon); |