Messages in this thread | | | Date | Tue, 1 Jul 2008 14:17:15 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] autofs4 - detect invalid direct mount requests |
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On Fri, 20 Jun 2008 13:13:03 +0800 Ian Kent <raven@themaw.net> wrote:
> autofs v5 dierct and offset mounts within an autofs filesystem are > triggered by existing autofs triger mounts so the mount point dentry > must be positive. If the mount point dentry is negative then the > trigger doesn't exist so we can return fail immediately. > > Signed-off-by: Ian Kent <raven@themaw.net> > > --- > > fs/autofs4/waitq.c | 4 ++++ > 1 files changed, 4 insertions(+), 0 deletions(-) > > > diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c > index cd21fd4..ae637d9 100644 > --- a/fs/autofs4/waitq.c > +++ b/fs/autofs4/waitq.c > @@ -307,6 +307,10 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry, > if (sbi->catatonic) > return -ENOENT; > > + if (!dentry->d_inode && > + (sbi->type & (AUTOFS_TYPE_DIRECT | AUTOFS_TYPE_OFFSET))) > + return -ENOENT; > + > name = kmalloc(NAME_MAX + 1, GFP_KERNEL); > if (!name) > return -ENOMEM;
A good changelog would allow little old me to determine whether this patch should be merged into 2.6.25 and/or 2.6.26 and/or 2.6.27. This wasn't a good changelog :(
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