From: Eric W. Biederman <ebiederm@xxxxxxxxxxxxxxxxxxxxxxxxxx> Signed-off-by: Eric W. Biederman <ebiederm@xxxxxxxxxxxxxxxxxx> --- fs/namei.c | 11 +++++++++-- 1 files changed, 9 insertions(+), 2 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 5472ed0..c4c6575 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1049,23 +1049,30 @@ static int path_init(int dfd, const char *name, unsigned int flags, struct namei if (!file) goto out_fail; + retval = -EIO; + if (!file_hotplug_read_trylock(file)) + goto fput_fail; + dentry = file->f_path.dentry; retval = -ENOTDIR; if (!S_ISDIR(dentry->d_inode->i_mode)) - goto fput_fail; + goto unlock_fail; retval = file_permission(file, MAY_EXEC); if (retval) - goto fput_fail; + goto unlock_fail; nd->path = file->f_path; path_get(&file->f_path); + file_hotplug_read_unlock(file); fput_light(file, fput_needed); } return 0; +unlock_fail: + file_hotplug_read_unlock(file); fput_fail: fput_light(file, fput_needed); out_fail: -- 1.6.3.1.54.g99dd.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
