Re: [PATCH] autofs: drop dentry reference only when it is never used

2018-11-26 Thread Ian Kent
On Mon, 2018-11-26 at 09:58 +0800, Pan Bian wrote: > The function autofs_expire_run calls dput(dentry) to drop the reference > count of dentry. However, dentry is read via autofs_dentry_ino(dentry) > after that. This may result in a use-free-bug. The patch drops the > reference count of dentry only

[PATCH] autofs: drop dentry reference only when it is never used

2018-11-25 Thread Pan Bian
The function autofs_expire_run calls dput(dentry) to drop the reference count of dentry. However, dentry is read via autofs_dentry_ino(dentry) after that. This may result in a use-free-bug. The patch drops the reference count of dentry only when it is never used. Signed-off-by: Pan Bian --- fs/a