Messages in this thread Patch in this message | | | From | Hillf Danton <> | Subject | Re: [syzbot] [net?] [virt?] [kvm?] KASAN: slab-use-after-free Read in vhost_task_fn | Date | Tue, 30 Apr 2024 19:02:09 +0800 |
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On Tue, 30 Apr 2024 01:25:26 -0700 > syzbot found the following issue on: > > HEAD commit: bb7a2467e6be Add linux-next specific files for 20240426 > git tree: linux-next > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16c30028980000
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git bb7a2467e6be
--- x/kernel/vhost_task.c +++ y/kernel/vhost_task.c @@ -100,6 +100,8 @@ void vhost_task_stop(struct vhost_task * * freeing it below. */ wait_for_completion(&vtsk->exited); + mutex_lock(&vtsk->exit_mutex); + mutex_unlock(&vtsk->exit_mutex); kfree(vtsk); } EXPORT_SYMBOL_GPL(vhost_task_stop); --
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