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| author | Jesper Juhl <jj@chaosbits.net> | 2010-12-24 22:22:37 +0000 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-01-04 13:10:36 -0500 |
| commit | 878215feb8b2417c4700090b4335739858cf7b5a (patch) | |
| tree | 175172dad3e31faf4cb36262f3ef5fdf2a7bda61 /fs/nfs/proc.c | |
| parent | 1174dd1f890b7f8be8ec6a7071657fe8f59e18b7 (diff) | |
| download | linux-878215feb8b2417c4700090b4335739858cf7b5a.tar.gz linux-878215feb8b2417c4700090b4335739858cf7b5a.tar.bz2 linux-878215feb8b2417c4700090b4335739858cf7b5a.zip | |
NFS: Don't leak in nfs_proc_symlink()
Hi,
In fs/nfs/proc.c::nfs_proc_symlink() we will leak memory if either
nfs_alloc_fhandle() or nfs_alloc_fattr() returns NULL but the other one
doesn't.
This patch ensures memory allocated by one when the other fails is always
released (this is safe since nfs_free_fattr() and nfs_free_fhandle() both
call kfree which deals gracefully with NULL pointers).
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/proc.c')
| -rw-r--r-- | fs/nfs/proc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c index 00df60523aac..77d5e21c4ad6 100644 --- a/fs/nfs/proc.c +++ b/fs/nfs/proc.c @@ -458,7 +458,7 @@ nfs_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page, fattr = nfs_alloc_fattr(); status = -ENOMEM; if (fh == NULL || fattr == NULL) - goto out; + goto out_free; status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); nfs_mark_for_revalidate(dir); @@ -471,6 +471,7 @@ nfs_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page, if (status == 0) status = nfs_instantiate(dentry, fh, fattr); +out_free: nfs_free_fattr(fattr); nfs_free_fhandle(fh); out: |