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| author |   Amir Goldstein <amir73il@gmail.com> | 2017-05-16 08:45:46 +0300 |
|---|---|---|
| committer |   Miklos Szeredi <mszeredi@redhat.com> | 2017-05-18 16:11:24 +0200 |
| commit | 8137ae26d25303e7b5cfb418fd28b976461e5b6e (patch) | |
| tree | e15b1c29eddff213d3b056cb6d274806d6609705 /fs | |
| parent | ovl: select EXPORTFS (diff) | |
| download | wireguard-linux-8137ae26d25303e7b5cfb418fd28b976461e5b6e.tar.xz wireguard-linux-8137ae26d25303e7b5cfb418fd28b976461e5b6e.zip | |
ovl: fix creds leak in copy up error path
Fixes: 42f269b92540 ("ovl: rearrange code in ovl_copy_up_locked()")
Cc: <stable@vger.kernel.org> # v4.11
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/overlayfs/copy_up.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c index 9008ab9fbd2e..061a8448e6c4 100644 --- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -343,12 +343,13 @@ static int ovl_copy_up_locked(struct dentry *workdir, struct dentry *upperdir, temp = ovl_do_tmpfile(upperdir, stat->mode); else temp = ovl_lookup_temp(workdir, dentry); - err = PTR_ERR(temp); - if (IS_ERR(temp)) - goto out1; - err = 0; - if (!tmpfile) + if (IS_ERR(temp)) { + err = PTR_ERR(temp); + temp = NULL; + } + + if (!err && !tmpfile) err = ovl_create_real(wdir, temp, &cattr, NULL, true); if (new_creds) { |