Dear kernel developers, I found that on the syzbot dashboard, “WARNING: refcount bug in qrtr_node_lookup”[1] and "WARNING: refcount bug in qrtr_recvmsg"[2] should share the same root cause.
The reasons for the above statement: 1) the stack trace is the same, and this title difference is due to the inline property of "qrtr_node_lookup"; 2) their PoCs are the same as each other; If you can have any issues with this statement or our information is useful to you, please let us know. Thanks very much. [1] “WARNING: refcount bug in qrtr_node_lookup” - https://syzkaller.appspot.com/bug?id=e10e2fe9023e90256a35bfd34c181910bf7a874d [2] “WARNING: refcount bug in qrtr_recvmsg” - https://syzkaller.appspot.com/bug?id=6532173a22405c4e16c79f35609b71a0e19e29ae -- My best regards to you. No System Is Safe! Dongliang Mu