diff options
Diffstat (limited to 'kernel/fs/exec.c')
| -rw-r--r-- | kernel/fs/exec.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/fs/exec.c b/kernel/fs/exec.c index 0e7125be0..e7760b7b6 100644 --- a/kernel/fs/exec.c +++ b/kernel/fs/exec.c @@ -98,6 +98,12 @@ static inline void put_binfmt(struct linux_binfmt * fmt) module_put(fmt->module); } +bool path_noexec(const struct path *path) +{ + return (path->mnt->mnt_flags & MNT_NOEXEC) || + (path->mnt->mnt_sb->s_iflags & SB_I_NOEXEC); +} + #ifdef CONFIG_USELIB /* * Note that a shared library must be both readable and executable due to @@ -132,7 +138,7 @@ SYSCALL_DEFINE1(uselib, const char __user *, library) goto exit; error = -EACCES; - if (file->f_path.mnt->mnt_flags & MNT_NOEXEC) + if (path_noexec(&file->f_path)) goto exit; fsnotify_open(file); @@ -777,7 +783,7 @@ static struct file *do_open_execat(int fd, struct filename *name, int flags) if (!S_ISREG(file_inode(file)->i_mode)) goto exit; - if (file->f_path.mnt->mnt_flags & MNT_NOEXEC) + if (path_noexec(&file->f_path)) goto exit; err = deny_write_access(file); |