CVE-2024-47694

{"id": "CVE-2024-47694", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2024-10-21T12:15:06.107", "references": [{"url": "https://git.kernel.org/stable/c/112e6e83a894260cc7efe79a1fc47d4d51461742", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/99e2de5942b0390ddc24efada71edc6593e23f05", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/mlx5: Fix UMR pd cleanup on error flow of driver init\n\nThe cited commit moves the pd allocation from function\nmlx5r_umr_resource_cleanup() to a new function mlx5r_umr_cleanup().\nSo the fix in commit [1] is broken. In error flow, will hit panic [2].\n\nFix it by checking pd pointer to avoid panic if it is NULL;\n\n[1] RDMA/mlx5: Fix UMR cleanup on error flow of driver init\n[2]\n [ 347.567063] infiniband mlx5_0: Couldn't register device with driver model\n [ 347.591382] BUG: kernel NULL pointer dereference, address: 0000000000000020\n [ 347.593438] #PF: supervisor read access in kernel mode\n [ 347.595176] #PF: error_code(0x0000) - not-present page\n [ 347.596962] PGD 0 P4D 0\n [ 347.601361] RIP: 0010:ib_dealloc_pd_user+0x12/0xc0 [ib_core]\n [ 347.604171] RSP: 0018:ffff888106293b10 EFLAGS: 00010282\n [ 347.604834] RAX: 0000000000000000 RBX: 000000000000000e RCX: 0000000000000000\n [ 347.605672] RDX: ffff888106293ad0 RSI: 0000000000000000 RDI: 0000000000000000\n [ 347.606529] RBP: 0000000000000000 R08: ffff888106293ae0 R09: ffff888106293ae0\n [ 347.607379] R10: 0000000000000a06 R11: 0000000000000000 R12: 0000000000000000\n [ 347.608224] R13: ffffffffa0704dc0 R14: 0000000000000001 R15: 0000000000000001\n [ 347.609067] FS: 00007fdc720cd9c0(0000) GS:ffff88852c880000(0000) knlGS:0000000000000000\n [ 347.610094] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n [ 347.610727] CR2: 0000000000000020 CR3: 0000000103012003 CR4: 0000000000370eb0\n [ 347.611421] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n [ 347.612113] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n [ 347.612804] Call Trace:\n [ 347.613130] <TASK>\n [ 347.613417] ? __die+0x20/0x60\n [ 347.613793] ? page_fault_oops+0x150/0x3e0\n [ 347.614243] ? free_msg+0x68/0x80 [mlx5_core]\n [ 347.614840] ? cmd_exec+0x48f/0x11d0 [mlx5_core]\n [ 347.615359] ? exc_page_fault+0x74/0x130\n [ 347.615808] ? asm_exc_page_fault+0x22/0x30\n [ 347.616273] ? ib_dealloc_pd_user+0x12/0xc0 [ib_core]\n [ 347.616801] mlx5r_umr_cleanup+0x23/0x90 [mlx5_ib]\n [ 347.617365] mlx5_ib_stage_pre_ib_reg_umr_cleanup+0x36/0x40 [mlx5_ib]\n [ 347.618025] __mlx5_ib_add+0x96/0xd0 [mlx5_ib]\n [ 347.618539] mlx5r_probe+0xe9/0x310 [mlx5_ib]\n [ 347.619032] ? kernfs_add_one+0x107/0x150\n [ 347.619478] ? __mlx5_ib_add+0xd0/0xd0 [mlx5_ib]\n [ 347.619984] auxiliary_bus_probe+0x3e/0x90\n [ 347.620448] really_probe+0xc5/0x3a0\n [ 347.620857] __driver_probe_device+0x80/0x160\n [ 347.621325] driver_probe_device+0x1e/0x90\n [ 347.621770] __driver_attach+0xec/0x1c0\n [ 347.622213] ? __device_attach_driver+0x100/0x100\n [ 347.622724] bus_for_each_dev+0x71/0xc0\n [ 347.623151] bus_add_driver+0xed/0x240\n [ 347.623570] driver_register+0x58/0x100\n [ 347.623998] __auxiliary_driver_register+0x6a/0xc0\n [ 347.624499] ? driver_register+0xae/0x100\n [ 347.624940] ? 0xffffffffa0893000\n [ 347.625329] mlx5_ib_init+0x16a/0x1e0 [mlx5_ib]\n [ 347.625845] do_one_initcall+0x4a/0x2a0\n [ 347.626273] ? gcov_event+0x2e2/0x3a0\n [ 347.626706] do_init_module+0x8a/0x260\n [ 347.627126] init_module_from_file+0x8b/0xd0\n [ 347.627596] __x64_sys_finit_module+0x1ca/0x2f0\n [ 347.628089] do_syscall_64+0x4c/0x100"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: IB/mlx5: Corregir limpieza de pd de UMR en flujo de error de inicializaci\u00f3n del controlador el commit citada mueve la asignaci\u00f3n de pd de la funci\u00f3n mlx5r_umr_resource_cleanup() a una nueva funci\u00f3n mlx5r_umr_cleanup(). Por lo tanto, la correcci\u00f3n en el commit [1] no funciona. En el flujo de error, se activar\u00e1 el p\u00e1nico [2]. Corr\u00edjalo comprobando el puntero pd para evitar el p\u00e1nico si es NULL; [1] RDMA/mlx5: Se corrige la limpieza de UMR en el flujo de error del inicio del controlador [2] [ 347.567063] infiniband mlx5_0: No se pudo registrar el dispositivo con el modelo del controlador [ 347.591382] ERROR: desreferencia de puntero NULL del kernel, direcci\u00f3n: 0000000000000020 [ 347.593438] #PF: acceso de lectura del supervisor en modo kernel [ 347.595176] #PF: error_code(0x0000) - p\u00e1gina no presente [ 347.596962] PGD 0 P4D 0 [ 347.601361] RIP: 0010:ib_dealloc_pd_user+0x12/0xc0 [ib_core] [ 347.604171] RSP: 0018:ffff888106293b10 EFLAGS: 00010282 [ 347.604834] RAX: 0000000000000000 RBX: 000000000000000e RCX: 0000000000000000 [ 347.605672] RDX: ffff888106293ad0 RSI: 000000000000000 RDI: 000000000000000 [ 347.606529] RBP: 0000000000000000 R08: ffff888106293ae0 R09: ffff888106293ae0 [ 347.607379] R10: 0000000000000a06 R11: 0000000000000000 R12: 0000000000000000 [ 347.608224] R13: ffffffffa0704dc0 R14: 0000000000000001 R15: 0000000000000001 [ 347.609067] FS: 00007fdc720cd9c0(0000) GS:ffff88852c880000(0000) knlGS:0000000000000000 [ 347.610094] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 347.610727] CR2: 0000000000000020 CR3: 0000000103012003 CR4: 0000000000370eb0 [ 347.611421] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 347.612113] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 347.612804] Seguimiento de llamadas: [ 347.613130] [ 347.613417] ? __die+0x20/0x60 [ 347.613793] ? page_fault_oops+0x150/0x3e0 [ 347.614243] ? free_msg+0x68/0x80 [mlx5_core] [ 347.614840] ? cmd_exec+0x48f/0x11d0 [mlx5_core] [ 347.615359] ? asm_exc_page_fault+0x22/0x30 [ 347.616273] ? kernfs_add_one+0x107/0x150 [347.619478] ? __mlx5_ib_add+0xd0/0xd0 [mlx5_ib] [ 347.619984] sonda_de_bus_auxiliar+0x3e/0x90 [ 347.620448] sonda_realmente+0xc5/0x3a0 [ 347.620857] __dispositivo_de_sonda_del_controlador+0x80/0x160 [ 347.621325] dispositivo_de_sonda_del_controlador+0x1e/0x90 [ 347.621770] __dispositivo_de_sonda_del_controlador+0xec/0x1c0 [ 347.622213] ? __controlador_de_conexi\u00f3n_de_dispositivo+0x100/0x100 [ 347.622724] bus_para_cada_dispositivo+0x71/0xc0 [ 347.623151] bus_agregar_controlador+0xed/0x240 [ 347.623570] registro_del_controlador+0x58/0x100 [ 347.623998] __registro_del_controlador_auxiliar+0x6a/0xc0 [ 347.624499] ? registro_del_controlador+0xae/0x100 [ 347.624940] ? 0xffffffffa0893000 [ 347.625329] mlx5_ib_init+0x16a/0x1e0 [mlx5_ib] [ 347.625845] hacer_una_llamada_inicia+0x4a/0x2a0 [ 347.626273] ? gcov_event+0x2e2/0x3a0 [ 347.626706] hacer_init_module+0x8a/0x260 [ 347.627126] iniciar_m\u00f3dulo_desde_archivo+0x8b/0xd0 [ 347.627596] __x64_sys_finit_module+0x1ca/0x2f0 [ 347.628089] hacer_syscall_64+0x4c/0x100"}], "lastModified": "2024-10-23T21:34:29.393", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AB755D26-97F4-43B6-8604-CD076811E181", "versionEndExcluding": "6.11.2", "versionStartIncluding": "6.11"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}