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| author | Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> | 2009-12-09 15:36:04 +0900 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2009-12-09 19:01:16 +1100 |
| commit | 67fa4880c5e059428392ca6f7c2f9c38e8546fea (patch) | |
| tree | e9dd72bf71067fcacb122b7ced20d964e3be0be8 /security/tomoyo/realpath.c | |
| parent | 1ad1f10cd915744bbe52b19423653b38287d827d (diff) | |
| download | linux-67fa4880c5e059428392ca6f7c2f9c38e8546fea.tar.bz2 | |
TOMOYO: Compare filesystem by magic number rather than by name.
Please apply below one after merging 1557d33007f63dd96e5d15f33af389378e5f2e54
(Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6).
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[PATCH for 2.6.33] TOMOYO: Compare filesystem by magic number rather than by name.
We can use magic number for checking whether the filesystem is procfs or not.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/tomoyo/realpath.c')
| -rw-r--r-- | security/tomoyo/realpath.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c index 18369d497eb8..e3c7aa0fb706 100644 --- a/security/tomoyo/realpath.c +++ b/security/tomoyo/realpath.c @@ -14,6 +14,7 @@ #include <linux/mnt_namespace.h> #include <linux/fs_struct.h> #include <linux/hash.h> +#include <linux/magic.h> #include "common.h" #include "realpath.h" @@ -112,7 +113,7 @@ int tomoyo_realpath_from_path2(struct path *path, char *newname, path_put(&ns_root); /* Prepend "/proc" prefix if using internal proc vfs mount. */ if (!IS_ERR(sp) && (path->mnt->mnt_parent == path->mnt) && - (strcmp(path->mnt->mnt_sb->s_type->name, "proc") == 0)) { + (path->mnt->mnt_sb->s_magic == PROC_SUPER_MAGIC)) { sp -= 5; if (sp >= newname) memcpy(sp, "/proc", 5); |