diff options
| author | Miklos Szeredi <mszeredi@redhat.com> | 2016-08-03 14:44:27 +0300 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2016-08-03 14:57:56 +0300 |
| commit | c1892c37769cf89c7e7ba57528ae2ccb5d153c9b (patch) | |
| tree | 47ce773ce58dd4f584ba8baffce973b9d55a1148 /fs/aio.c | |
| parent | 523d939ef98fd712632d93a5a2b588e477a7565e (diff) | |
| download | linux-c1892c37769cf89c7e7ba57528ae2ccb5d153c9b.tar.xz | |
vfs: fix deadlock in file_remove_privs() on overlayfs
file_remove_privs() is called with inode lock on file_inode(), which
proceeds to calling notify_change() on file->f_path.dentry. Which triggers
the WARN_ON_ONCE(!inode_is_locked(inode)) in addition to deadlocking later
when ovl_setattr tries to lock the underlying inode again.
Fix this mess by not mixing the layers, but doing everything on underlying
dentry/inode.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Fixes: 07a2daab49c5 ("ovl: Copy up underlying inode's ->i_mode to overlay inode")
Cc: <stable@vger.kernel.org>
Diffstat (limited to 'fs/aio.c')
0 files changed, 0 insertions, 0 deletions