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| author | J. R. Okajima <hooanon05@yahoo.co.jp> | 2009-06-18 23:30:15 +0900 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-06-24 08:15:24 -0400 |
| commit | 654f562c526cf9dfb8d453f687341fe0777ee454 (patch) | |
| tree | 407b4c7755b6db7ecf77a881121228831876ee55 /fs | |
| parent | b5450d9c84bdd38b261922057cd167da51dfae93 (diff) | |
| download | lwn-654f562c526cf9dfb8d453f687341fe0777ee454.tar.gz lwn-654f562c526cf9dfb8d453f687341fe0777ee454.zip | |
vfs: fix nd->root leak in do_filp_open()
commit 2a737871108de9ba8930f7650d549f1383767f8b "Cache root in nameidata"
introduced a new member nd->root, but forgot to put it in do_filp_open().
Signed-off-by: J. R. Okajima <hooanon05@yahoo.co.jp>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/namei.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/fs/namei.c b/fs/namei.c index 527119afb6a5..5b961eb71cbf 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1698,8 +1698,11 @@ struct file *do_filp_open(int dfd, const char *pathname, if (error) return ERR_PTR(error); error = path_walk(pathname, &nd); - if (error) + if (error) { + if (nd.root.mnt) + path_put(&nd.root); return ERR_PTR(error); + } if (unlikely(!audit_dummy_context())) audit_inode(pathname, nd.path.dentry); @@ -1759,6 +1762,8 @@ do_last: } filp = nameidata_to_filp(&nd, open_flag); mnt_drop_write(nd.path.mnt); + if (nd.root.mnt) + path_put(&nd.root); return filp; } @@ -1819,6 +1824,8 @@ ok: */ if (will_write) mnt_drop_write(nd.path.mnt); + if (nd.root.mnt) + path_put(&nd.root); return filp; exit_mutex_unlock: @@ -1859,6 +1866,8 @@ do_link: * with "intent.open". */ release_open_intent(&nd); + if (nd.root.mnt) + path_put(&nd.root); return ERR_PTR(error); } nd.flags &= ~LOOKUP_PARENT; |