CVE-2023-54131

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> wifi: rt2x00: Fix memory leak when handling surveys<br /> <br /> When removing a rt2x00 device, its associated channel surveys<br /> are not freed, causing a memory leak observable with kmemleak:<br /> <br /> unreferenced object 0xffff9620f0881a00 (size 512):<br /> comm "systemd-udevd", pid 2290, jiffies 4294906974 (age 33.768s)<br /> hex dump (first 32 bytes):<br /> 70 44 12 00 00 00 00 00 92 8a 00 00 00 00 00 00 pD..............<br /> 00 00 00 00 00 00 00 00 ab 87 01 00 00 00 00 00 ................<br /> backtrace:<br /> [] __kmalloc+0x4b/0x130<br /> [] rt2800_probe_hw+0xc2b/0x1380 [rt2800lib]<br /> [] rt2800usb_probe_hw+0xe/0x60 [rt2800usb]<br /> [] rt2x00lib_probe_dev+0x21a/0x7d0 [rt2x00lib]<br /> [] rt2x00usb_probe+0x1be/0x980 [rt2x00usb]<br /> [] usb_probe_interface+0xe2/0x310 [usbcore]<br /> [] really_probe+0x1a5/0x410<br /> [] __driver_probe_device+0x78/0x180<br /> [] driver_probe_device+0x1e/0x90<br /> [] __driver_attach+0xd2/0x1c0<br /> [] bus_for_each_dev+0x77/0xd0<br /> [] bus_add_driver+0x112/0x210<br /> [] driver_register+0x5c/0x120<br /> [] usb_register_driver+0x88/0x150 [usbcore]<br /> [] do_one_initcall+0x44/0x220<br /> [] do_init_module+0x4c/0x220<br /> <br /> Fix this by freeing the channel surveys on device removal.<br /> <br /> Tested with a RT3070 based USB wireless adapter.