Commit 492c8b33 authored May 23, 2007 by Christoph Hellwig Committed by Linus Torvalds May 23, 2007

uselib: add missing MNT_NOEXEC check



We don't allow loading ELF shared library from noexec points so the
same should apply to sys_uselib aswell.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Ulrich Drepper <drepper@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 5a1b6391

fs/exec.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -134,6 +134,9 @@ asmlinkage long sys_uselib(const char __user * library)
		if (error)
		goto out;

		error = -EACCES;
		if (nd.mnt->mnt_flags & MNT_NOEXEC)
		goto exit;
		error = -EINVAL;
		if (!S_ISREG(nd.dentry->d_inode->i_mode))
		goto exit;