Vulnerabilidad en kernel de Linux (CVE-2024-27062)

En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: nouveau: bloquea el árbol de objetos del cliente. Parece que el árbol de objetos del cliente no tiene bloqueo a menos que me haya perdido algo más. Se corrigieron ejecucións para agregar o eliminar objetos de cliente, principalmente asignaciones de barras de vram. 4562.099306] falla de protección general, probablemente para dirección no canónica 0x6677ed422bceb80c: 0000 [#1] PREEMPT SMP PTI [ 4562.099314] CPU: 2 PID: 23171 Comm: deqp-vk Not tainted 6.8.0-rc6+ #27 [ 4562.09932 4]Nombre del hardware : Gigabyte Technology Co., Ltd. Z390 I AORUS PRO WIFI/Z390 I AORUS PRO WIFI-CF, BIOS F8 05/11/2021 [4562.099330] RIP: 0010:nvkm_object_search+0x1d/0x70 [nuevo] [4562.099503] Código: 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 0f 1f 44 00 00 48 89 f8 48 85 f6 74 39 48 8b 87 a0 00 00 00 48 85 c0 74 12 <48> 8b 48 f8 48 39 ce 73 15 48 8b 40 10 48 85 c0 75 ee 48 c7 c0 fe [ 4562.099506] RSP: 0000:ffffa94cc420bbf8 EFLAGS: 00010206 [ 4562.099512] RAX: 6677ed422bceb814 ffff98108791f400 RCX: ffff9810f26b8f58 [ 4562.099517] RDX: 0000000000000000 RSI: ffff9810f26b9158 RDI: ffff98108791f400 [ 4562.099519] RBP: ffff9810f26b9158 R08: 0000000000000000 R09: 0000000000000000 [ 4562.099521] R10: ffffa94cc420bc48 R11: 00000000000000 01 R12: ffff9810f02a7cc0 [ 4562.099526] R13: 0000000000000000 R14: 00000000000000ff R15: 0000000000000007 [ 4562.099528] FS: 00007f629c 5017c0(0000) GS:ffff98142c700000(0000 ) knlGS:0000000000000000 [ 4562.099534] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4562.099536] CR2: 00007f629a882000 CR3: 17019e004 CR4: 00000000003706f0 [ 4562.099541] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4562.099542] DR3: 0000000000000 DR6 : 00000000fffe0ff0 DR7: 0000000000000400 [ 4562.099544] Seguimiento de llamadas: [ 4562.099555] [ 4562.099573] ? die_addr+0x36/0x90 [4562.099583]? exc_general_protection+0x246/0x4a0 [4562.099593]? asm_exc_general_protection+0x26/0x30 [4562.099600]? nvkm_object_search+0x1d/0x70 [nuevo] [ 4562.099730] nvkm_ioctl+0xa1/0x250 [nuevo] [ 4562.099861] nvif_object_map_handle+0xc8/0x180 [nuevo] [ 4562.099986] _io_mem_reserve+0x122/0x270 [nuevo] [ 4562.100156] ? dma_resv_test_signaled+0x26/0xb0 [4562.100163] ttm_bo_vm_fault_reserved+0x97/0x3c0 [ttm] [4562.100182]? __mutex_unlock_slowpath+0x2a/0x270 [ 4562.100189] nouveau_ttm_fault+0x69/0xb0 [nuevo] [ 4562.100356] __do_fault+0x32/0x150 [ 4562.100362] do_fault+0x7c/0x560 [ 4 562.100369] __handle_mm_fault+0x800/0xc10 [ 4562.100382] handle_mm_fault+0x17c/0x3e0 [ 4562.100388 ] do_user_addr_fault+0x208/0x860 [ 4562.100395] exc_page_fault+0x7f/0x200 [ 4562.100402] asm_exc_page_fault+0x26/0x30 [ 4562.100412] RIP: 0033:0x9b9870 [ 4562.100419] Código: 85 a8 f7 ff ff 8b 8d 80 f7 ff ff 89 08 e9 18 f2 ff ff 0f 1f 84 00 00 00 00 00 44 89 32 e9 90 fa ff ff 0f 1f 84 00 00 00 00 00 <44> 89 32 e9 f8 f1 ff ff 0f 1f 84 00 00 00 00 00 66 89 32 e9 e7 [ 4562.100422] RSP: 002b:00007fff9ba2dc70 EFLAGS: 00010246 [ 4562.100426] RAX: 00000000000000004 RBX: 000000000dd65e10 RCX: 000000fff0000 000 [4562.100428] RDX: 00007f629a882000 RSI: 00007f629a882000 RDI: 0000000000000066 [4562.100432] RBP: 00007fff9ba2e570 R08: 0000000 R09: 0000000123ddf000 [4562.100434 ] R10: 0000000000000001 R11: 00000000000000246 R12: 000000007ffffff [ 4562.100436] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 4562.100446] [ 4562.100448] Módulos vinculados en: nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables libcrc32c nfnetlink cmac bnep sunrpc iwlmvm intel_rapl_msr intel_rapl_common snd_sof_pci_intel_cnl x86_pkg_temp_thermal intel_powerclamp snd_sof_intel_hda_common mac802 11 coretemp snd_soc_acpi_intel_match kvm_intel snd_soc_acpi snd_soc_hdac_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof_intel_hda_mlink ---truncado---