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| author | Stas Sergeev <stsp@aknet.ru> | 2006-12-06 20:35:25 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 08:39:30 -0800 |
| commit | 317a40ac2237732aba531eee2c7b5e39dd40e959 (patch) | |
| tree | 8171e98eaa2bbceeacca4f4f43da1bb331ed17de /fs/namei.c | |
| parent | ed07536ed6731775219c1df7fa26a7588753e693 (diff) | |
| download | lwn-317a40ac2237732aba531eee2c7b5e39dd40e959.tar.gz lwn-317a40ac2237732aba531eee2c7b5e39dd40e959.zip | |
[PATCH] honour MNT_NOEXEC for access()
Make access(X_OK) take the "noexec" mount option into account.
Signed-off-by: Stas Sergeev <stsp@aknet.ru>
Cc: Jakub Jelinek <jakub@redhat.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/namei.c')
| -rw-r--r-- | fs/namei.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/namei.c b/fs/namei.c index 28d49b301d55..61f99c1967d9 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -249,9 +249,11 @@ int permission(struct inode *inode, int mask, struct nameidata *nd) /* * MAY_EXEC on regular files requires special handling: We override - * filesystem execute permissions if the mode bits aren't set. + * filesystem execute permissions if the mode bits aren't set or + * the fs is mounted with the "noexec" flag. */ - if ((mask & MAY_EXEC) && S_ISREG(mode) && !(mode & S_IXUGO)) + if ((mask & MAY_EXEC) && S_ISREG(mode) && (!(mode & S_IXUGO) || + (nd && nd->mnt && (nd->mnt->mnt_flags & MNT_NOEXEC)))) return -EACCES; /* Ordinary permission routines do not understand MAY_APPEND. */ |