| Message ID | 20170503224113.28791-1-ddiss@suse.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
merged into cifs-2.6.git thx On Wed, May 3, 2017 at 5:41 PM, David Disseldorp <ddiss@suse.de> wrote: > An open directory may have a NULL private_data pointer prior to readdir. > > Fixes: 0de1f4c6f6c0 ("Add way to query server fs info for smb3") > Cc: stable@vger.kernel.org > Signed-off-by: David Disseldorp <ddiss@suse.de> > --- > fs/cifs/ioctl.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c > index 4d598a71cf84..76fb0917dc8c 100644 > --- a/fs/cifs/ioctl.c > +++ b/fs/cifs/ioctl.c > @@ -209,6 +209,8 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg) > rc = -EOPNOTSUPP; > break; > case CIFS_IOC_GET_MNT_INFO: > + if (pSMBFile == NULL) > + break; > tcon = tlink_tcon(pSMBFile->tlink); > rc = smb_mnt_get_fsinfo(xid, tcon, (void __user *)arg); > break; > -- > 2.12.0 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-cifs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c index 4d598a71cf84..76fb0917dc8c 100644 --- a/fs/cifs/ioctl.c +++ b/fs/cifs/ioctl.c @@ -209,6 +209,8 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg) rc = -EOPNOTSUPP; break; case CIFS_IOC_GET_MNT_INFO: + if (pSMBFile == NULL) + break; tcon = tlink_tcon(pSMBFile->tlink); rc = smb_mnt_get_fsinfo(xid, tcon, (void __user *)arg); break;
An open directory may have a NULL private_data pointer prior to readdir. Fixes: 0de1f4c6f6c0 ("Add way to query server fs info for smb3") Cc: stable@vger.kernel.org Signed-off-by: David Disseldorp <ddiss@suse.de> --- fs/cifs/ioctl.c | 2 ++ 1 file changed, 2 insertions(+)