CVE-2023-53453

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/radeon: free iio for atombios when driver shutdown<br /> <br /> Fix below kmemleak when unload radeon driver:<br /> <br /> unreferenced object 0xffff9f8608ede200 (size 512):<br /> comm "systemd-udevd", pid 326, jiffies 4294682822 (age 716.338s)<br /> hex dump (first 32 bytes):<br /> 00 00 00 00 c4 aa ec aa 14 ab 00 00 00 00 00 00 ................<br /> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................<br /> backtrace:<br /> [] kmem_cache_alloc_trace+0x2f1/0x500<br /> [] atom_parse+0x117/0x230 [radeon]<br /> [] radeon_atombios_init+0xab/0x170 [radeon]<br /> [] si_init+0x57/0x750 [radeon]<br /> [] radeon_device_init+0x559/0x9c0 [radeon]<br /> [] radeon_driver_load_kms+0xc1/0x1a0 [radeon]<br /> [] drm_dev_register+0xdd/0x1d0<br /> [] radeon_pci_probe+0xbd/0x100 [radeon]<br /> [] pci_device_probe+0xe1/0x160<br /> [] really_probe.part.0+0xc1/0x2c0<br /> [] __driver_probe_device+0x96/0x130<br /> [] driver_probe_device+0x24/0xf0<br /> [] __driver_attach+0x77/0x190<br /> [] bus_for_each_dev+0x7f/0xd0<br /> [] driver_attach+0x1e/0x30<br /> [] bus_add_driver+0x12c/0x1e0<br /> <br /> iio was allocated in atom_index_iio() called by atom_parse(),<br /> but it doesn&amp;#39;t got released when the dirver is shutdown.<br /> Fix this kmemleak by free it in radeon_atombios_fini().