CVE-2024-53183

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> um: net: Do not use drvdata in release<br /> <br /> The drvdata is not available in release. Let&amp;#39;s just use container_of()<br /> to get the uml_net instance. Otherwise, removing a network device will<br /> result in a crash:<br /> <br /> RIP: 0033:net_device_release+0x10/0x6f<br /> RSP: 00000000e20c7c40 EFLAGS: 00010206<br /> RAX: 000000006002e4e7 RBX: 00000000600f1baf RCX: 00000000624074e0<br /> RDX: 0000000062778000 RSI: 0000000060551c80 RDI: 00000000627af028<br /> RBP: 00000000e20c7c50 R08: 00000000603ad594 R09: 00000000e20c7b70<br /> R10: 000000000000135a R11: 00000000603ad422 R12: 0000000000000000<br /> R13: 0000000062c7af00 R14: 0000000062406d60 R15: 00000000627700b6<br /> Kernel panic - not syncing: Segfault with no mm<br /> CPU: 0 UID: 0 PID: 29 Comm: kworker/0:2 Not tainted 6.12.0-rc6-g59b723cd2adb #1<br /> Workqueue: events mc_work_proc<br /> Stack:<br /> 627af028 62c7af00 e20c7c80 60276fcd<br /> 62778000 603f5820 627af028 00000000<br /> e20c7cb0 603a2bcd 627af000 62770010<br /> Call Trace:<br /> [] device_release+0x70/0xba<br /> [] kobject_put+0xba/0xe7<br /> [] put_device+0x19/0x1c<br /> [] platform_device_put+0x26/0x29<br /> [] platform_device_unregister+0x2c/0x2e<br /> [] net_remove+0x63/0x69<br /> [] ? mconsole_reply+0x0/0x50<br /> [] mconsole_remove+0x160/0x1cc<br /> [] ? __remove_hrtimer+0x38/0x74<br /> [] ? hrtimer_try_to_cancel+0x8c/0x98<br /> [] ? dl_server_stop+0x3f/0x48<br /> [] ? dl_server_stop+0x0/0x48<br /> [] ? dequeue_entities+0x327/0x390<br /> [] ? um_set_signals+0x0/0x43<br /> [] mc_work_proc+0x77/0x91<br /> [] process_scheduled_works+0x1b3/0x2dd<br /> [] ? assign_work+0x0/0x58<br /> [] worker_thread+0x1e9/0x293<br /> [] ? set_pf_worker+0x0/0x64<br /> [] ? arch_local_irq_save+0x0/0x2d<br /> [] ? kthread_exit+0x0/0x3a<br /> [] ? worker_thread+0x0/0x293<br /> [] kthread+0x126/0x12b<br /> [] new_thread_handler+0x85/0xb6