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| author | Timo Savola <tsavola@movial.fi> | 2007-04-08 16:04:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-04-08 19:47:55 -0700 |
| commit | a5bfffac645a7b2d8119f8bbae34df5c94832799 (patch) | |
| tree | 20081cd9ae9afebd6899dd35d5d685ed6fca5440 /fs/fuse/dir.c | |
| parent | d354d2f4a6fc1b722c2e464a8b3cfd2f6afb304b (diff) | |
| download | lwn-a5bfffac645a7b2d8119f8bbae34df5c94832799.tar.gz lwn-a5bfffac645a7b2d8119f8bbae34df5c94832799.zip | |
[PATCH] fuse: validate rootmode mount option
If rootmode isn't valid, we hit the BUG() in fuse_init_inode. Now
EINVAL is returned.
Signed-off-by: Timo Savola <tsavola@movial.fi>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/fuse/dir.c')
| -rw-r--r-- | fs/fuse/dir.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index 406bf61ed510..8890eba1db52 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -195,7 +195,7 @@ static struct dentry_operations fuse_dentry_operations = { .d_revalidate = fuse_dentry_revalidate, }; -static int valid_mode(int m) +int fuse_valid_type(int m) { return S_ISREG(m) || S_ISDIR(m) || S_ISLNK(m) || S_ISCHR(m) || S_ISBLK(m) || S_ISFIFO(m) || S_ISSOCK(m); @@ -248,7 +248,8 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry, fuse_put_request(fc, req); /* Zero nodeid is same as -ENOENT, but with valid timeout */ if (!err && outarg.nodeid && - (invalid_nodeid(outarg.nodeid) || !valid_mode(outarg.attr.mode))) + (invalid_nodeid(outarg.nodeid) || + !fuse_valid_type(outarg.attr.mode))) err = -EIO; if (!err && outarg.nodeid) { inode = fuse_iget(dir->i_sb, outarg.nodeid, outarg.generation, |