diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c index 83cc5287130796e8b445e8134ae4fbd96bad2902..fb5595e680d13ce062a158956ac4608f65e6ae68 100644 --- a/fs/overlayfs/file.c +++ b/fs/overlayfs/file.c @@ -12,6 +12,7 @@ #include #include #include +#include #include "overlayfs.h" static char ovl_whatisit(struct inode *inode, struct inode *realinode) @@ -403,7 +404,9 @@ static long ovl_real_ioctl(struct file *file, unsigned int cmd, return ret; old_cred = ovl_override_creds(file_inode(file)->i_sb); - ret = vfs_ioctl(real.file, cmd, arg); + ret = security_file_ioctl(real.file, cmd, arg); + if (!ret) + ret = vfs_ioctl(real.file, cmd, arg); revert_creds(old_cred); fdput(real); diff --git a/security/security.c b/security/security.c index 5ce2448f3a45415be399f6537a2d3ceb85e269f3..9e4d6c999c79f8898d95f8e83ce491a04cae2d51 100644 --- a/security/security.c +++ b/security/security.c @@ -893,6 +893,7 @@ int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { return call_int_hook(file_ioctl, 0, file, cmd, arg); } +EXPORT_SYMBOL_GPL(security_file_ioctl); static inline unsigned long mmap_prot(struct file *file, unsigned long prot) {