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LSM: Add security_path_chroot().

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This patch allows pathname based LSM modules to check chroot() operations.

This hook is used by TOMOYO.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Tetsuo Handa
2009-10-04 21:49:48 +09:00
committed by James Morris
parent 89eda06837
commit 8b8efb4403
4 changed files with 25 additions and 0 deletions
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fs/open.c
+3
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@@ -587,6 +587,9 @@ SYSCALL_DEFINE1(chroot, const char __user *, filename)
error = -EPERM;
if (!capable(CAP_SYS_CHROOT))
goto dput_and_out;
error = security_path_chroot(&path);
if (error)
goto dput_and_out;
set_fs_root(current->fs, &path);
error = 0;