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-rw-r--r--fs/fuse/dir.c23
1 files changed, 15 insertions, 8 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index e97a98981862..95bc22bdd060 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -869,18 +869,25 @@ int fuse_update_attributes(struct inode *inode, struct kstat *stat,
*/
int fuse_allow_task(struct fuse_conn *fc, struct task_struct *task)
{
+ const struct cred *cred;
+ int ret;
+
if (fc->flags & FUSE_ALLOW_OTHER)
return 1;
- if (task->cred->euid == fc->user_id &&
- task->cred->suid == fc->user_id &&
- task->cred->uid == fc->user_id &&
- task->cred->egid == fc->group_id &&
- task->cred->sgid == fc->group_id &&
- task->cred->gid == fc->group_id)
- return 1;
+ rcu_read_lock();
+ ret = 0;
+ cred = __task_cred(task);
+ if (cred->euid == fc->user_id &&
+ cred->suid == fc->user_id &&
+ cred->uid == fc->user_id &&
+ cred->egid == fc->group_id &&
+ cred->sgid == fc->group_id &&
+ cred->gid == fc->group_id)
+ ret = 1;
+ rcu_read_unlock();
- return 0;
+ return ret;
}
static int fuse_access(struct inode *inode, int mask)