From: Ben Hutchings <ben@decadent.org.uk>
Date: Fri, 2 Nov 2012 05:32:06 +0000 (+0000)
Subject: fs: Enable link security restrictions by default
X-Git-Tag: archive/raspbian/4.15.11-1+rpi1^2~81
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=fc1b76074753f6cfbafe09f55b42d07d5ac76e6d;p=linux.git

fs: Enable link security restrictions by default

This reverts commit 561ec64ae67ef25cac8d72bb9c4bfc955edfd415
('VFS: don't do protected {sym,hard}links by default').


Gbp-Pq: Topic debian
Gbp-Pq: Name fs-enable-link-security-restrictions-by-default.patch
---

diff --git a/fs/namei.c b/fs/namei.c
index 4e3fc58dae7..bc8c6b7690e 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -900,8 +900,8 @@ static inline void put_link(struct nameidata *nd)
 		path_put(&last->link);
 }
 
-int sysctl_protected_symlinks __read_mostly = 0;
-int sysctl_protected_hardlinks __read_mostly = 0;
+int sysctl_protected_symlinks __read_mostly = 1;
+int sysctl_protected_hardlinks __read_mostly = 1;
 
 /**
  * may_follow_link - Check symlink following for unsafe situations