** Summary changed: - placeholder bug + UAF on CAN J1939 j1939_can_recv
** Description changed: - Another bug. + [Impact] + j1939_can_recv may run concurrently to can_rx_unregister on j1939_netdev_stop, which will, then, free the priv struct that is used by j1939_can_recv, leading to a system crash. + + [Potential regression] + CAN J1939 sockets may stop working as expected. + + [Test case] + A program that created multiple threads, binding to J1939 sockets and closing them, while sending RAW CAN sockets were run. ** Information type changed from Private to Public Security -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1932209 Title: UAF on CAN J1939 j1939_can_recv Status in linux package in Ubuntu: Fix Released Bug description: [Impact] j1939_can_recv may run concurrently to can_rx_unregister on j1939_netdev_stop, which will, then, free the priv struct that is used by j1939_can_recv, leading to a system crash. [Potential regression] CAN J1939 sockets may stop working as expected. [Test case] A program that created multiple threads, binding to J1939 sockets and closing them, while sending RAW CAN sockets were run. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1932209/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
