diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c index 73c3e2c21edb01f15320ed48cf5884bee13916d9..b4ab06c3f3c676a1b4771de70ecf2e840ed534c4 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 17e2bed11bf715ad8bdfa21dd16febd6061542a6..b4f8c09568824b7a05a0b051673128376408db3b 100644 --- a/security/security.c +++ b/security/security.c @@ -877,6 +877,7 @@ 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) {