From: Linus Torvalds <torvalds@osdl.org>
Date: Sat, 15 Jul 2006 05:59:19 +0000 (+0000)
Subject: [PATCH] Relax /proc fix a bit
X-Git-Tag: v2.6.17.6~1
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=1d87a98f9db06b6c7fadd20f13ab092875d53801;p=karo-tx-linux.git

[PATCH] Relax /proc fix a bit

Relax /proc fix a bit

Clearign all of i_mode was a bit draconian. We only really care about
S_ISUID/ISGID, after all.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 5a8b89a8a467..f801693f6b14 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1404,8 +1404,8 @@ static int pid_revalidate(struct dentry *dentry, struct nameidata *nd)
 		} else {
 			inode->i_uid = 0;
 			inode->i_gid = 0;
-			inode->i_mode = 0;
 		}
+		inode->i_mode &= ~(S_ISUID | S_ISGID);
 		security_task_to_inode(task, inode);
 		return 1;
 	}
@@ -1433,6 +1433,7 @@ static int tid_fd_revalidate(struct dentry *dentry, struct nameidata *nd)
 				inode->i_uid = 0;
 				inode->i_gid = 0;
 			}
+			inode->i_mode &= ~(S_ISUID | S_ISGID);
 			security_task_to_inode(task, inode);
 			return 1;
 		}