CVE-2022-50676

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> net: rds: don&amp;#39;t hold sock lock when cancelling work from rds_tcp_reset_callbacks()<br /> <br /> syzbot is reporting lockdep warning at rds_tcp_reset_callbacks() [1], for<br /> commit ac3615e7f3cffe2a ("RDS: TCP: Reduce code duplication in<br /> rds_tcp_reset_callbacks()") added cancel_delayed_work_sync() into a section<br /> protected by lock_sock() without realizing that rds_send_xmit() might call<br /> lock_sock().<br /> <br /> We don&amp;#39;t need to protect cancel_delayed_work_sync() using lock_sock(), for<br /> even if rds_{send,recv}_worker() re-queued this work while __flush_work()<br /> from cancel_delayed_work_sync() was waiting for this work to complete,<br /> retried rds_{send,recv}_worker() is no-op due to the absence of RDS_CONN_UP<br /> bit.