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authorAl Viro <viro@zeniv.linux.org.uk>2008-07-22 00:02:33 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2008-07-26 20:53:30 -0400
commit30524472c2f728c20d6bf35191042a5d455c0a64 (patch)
treee9985d3883b45c4a9f5ef8185fa79c7b568bb4bd /fs/exec.c
parente56b6a5dda1a36ffaa532df6f975ea324298fa4d (diff)
downloadop-kernel-dev-30524472c2f728c20d6bf35191042a5d455c0a64.zip
op-kernel-dev-30524472c2f728c20d6bf35191042a5d455c0a64.tar.gz
[PATCH] take noexec checks to very few callers that care
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/exec.c')
-rw-r--r--fs/exec.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/exec.c b/fs/exec.c
index 346e3f6..eca58c2 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -118,6 +118,10 @@ asmlinkage long sys_uselib(const char __user * library)
if (!S_ISREG(nd.path.dentry->d_inode->i_mode))
goto exit;
+ error = -EACCES;
+ if (nd.path.mnt->mnt_flags & MNT_NOEXEC)
+ goto exit;
+
error = vfs_permission(&nd, MAY_READ | MAY_EXEC | MAY_OPEN);
if (error)
goto exit;
@@ -668,6 +672,9 @@ struct file *open_exec(const char *name)
if (!S_ISREG(nd.path.dentry->d_inode->i_mode))
goto out_path_put;
+ if (nd.path.mnt->mnt_flags & MNT_NOEXEC)
+ goto out_path_put;
+
err = vfs_permission(&nd, MAY_EXEC | MAY_OPEN);
if (err)
goto out_path_put;
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