fkie_cve-2024-47694
Vulnerability from fkie_nvd
Published
2024-10-21 12:15
Modified
2024-10-23 21:34
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: IB/mlx5: Fix UMR pd cleanup on error flow of driver init The cited commit moves the pd allocation from function mlx5r_umr_resource_cleanup() to a new function mlx5r_umr_cleanup(). So the fix in commit [1] is broken. In error flow, will hit panic [2]. Fix it by checking pd pointer to avoid panic if it is NULL; [1] RDMA/mlx5: Fix UMR cleanup on error flow of driver init [2] [ 347.567063] infiniband mlx5_0: Couldn't register device with driver model [ 347.591382] BUG: kernel NULL pointer dereference, address: 0000000000000020 [ 347.593438] #PF: supervisor read access in kernel mode [ 347.595176] #PF: error_code(0x0000) - not-present page [ 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: 0000000000000000 RDI: 0000000000000000 [ 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] Call Trace: [ 347.613130] <TASK> [ 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] ? exc_page_fault+0x74/0x130 [ 347.615808] ? asm_exc_page_fault+0x22/0x30 [ 347.616273] ? ib_dealloc_pd_user+0x12/0xc0 [ib_core] [ 347.616801] mlx5r_umr_cleanup+0x23/0x90 [mlx5_ib] [ 347.617365] mlx5_ib_stage_pre_ib_reg_umr_cleanup+0x36/0x40 [mlx5_ib] [ 347.618025] __mlx5_ib_add+0x96/0xd0 [mlx5_ib] [ 347.618539] mlx5r_probe+0xe9/0x310 [mlx5_ib] [ 347.619032] ? kernfs_add_one+0x107/0x150 [ 347.619478] ? __mlx5_ib_add+0xd0/0xd0 [mlx5_ib] [ 347.619984] auxiliary_bus_probe+0x3e/0x90 [ 347.620448] really_probe+0xc5/0x3a0 [ 347.620857] __driver_probe_device+0x80/0x160 [ 347.621325] driver_probe_device+0x1e/0x90 [ 347.621770] __driver_attach+0xec/0x1c0 [ 347.622213] ? __device_attach_driver+0x100/0x100 [ 347.622724] bus_for_each_dev+0x71/0xc0 [ 347.623151] bus_add_driver+0xed/0x240 [ 347.623570] driver_register+0x58/0x100 [ 347.623998] __auxiliary_driver_register+0x6a/0xc0 [ 347.624499] ? driver_register+0xae/0x100 [ 347.624940] ? 0xffffffffa0893000 [ 347.625329] mlx5_ib_init+0x16a/0x1e0 [mlx5_ib] [ 347.625845] do_one_initcall+0x4a/0x2a0 [ 347.626273] ? gcov_event+0x2e2/0x3a0 [ 347.626706] do_init_module+0x8a/0x260 [ 347.627126] init_module_from_file+0x8b/0xd0 [ 347.627596] __x64_sys_finit_module+0x1ca/0x2f0 [ 347.628089] do_syscall_64+0x4c/0x100
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/112e6e83a894260cc7efe79a1fc47d4d51461742Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/99e2de5942b0390ddc24efada71edc6593e23f05Patch
Impacted products
Vendor Product Version
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "AB755D26-97F4-43B6-8604-CD076811E181",
              "versionEndExcluding": "6.11.2",
              "versionStartIncluding": "6.11",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "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\u0027t 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]  \u003cTASK\u003e\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"
    }
  ],
  "id": "CVE-2024-47694",
  "lastModified": "2024-10-23T21:34:29.393",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-10-21T12:15:06.107",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/112e6e83a894260cc7efe79a1fc47d4d51461742"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/99e2de5942b0390ddc24efada71edc6593e23f05"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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