fkie_cve-2023-52570
Vulnerability from fkie_nvd
Published
2024-03-02 22:15
Modified
2024-12-11 15:21
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: vfio/mdev: Fix a null-ptr-deref bug for mdev_unregister_parent() Inject fault while probing mdpy.ko, if kstrdup() of create_dir() fails in kobject_add_internal() in kobject_init_and_add() in mdev_type_add() in parent_create_sysfs_files(), it will return 0 and probe successfully. And when rmmod mdpy.ko, the mdpy_dev_exit() will call mdev_unregister_parent(), the mdev_type_remove() may traverse uninitialized parent->types[i] in parent_remove_sysfs_files(), and it will cause below null-ptr-deref. If mdev_type_add() fails, return the error code and kset_unregister() to fix the issue. general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] CPU: 2 PID: 10215 Comm: rmmod Tainted: G W N 6.6.0-rc2+ #20 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 RIP: 0010:__kobject_del+0x62/0x1c0 Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 51 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 28 48 8d 7d 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 24 01 00 00 48 8b 75 10 48 89 df 48 8d 6b 3c e8 RSP: 0018:ffff88810695fd30 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffffffffa0270268 RCX: 0000000000000000 RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000010 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed10233a4ef1 R10: ffff888119d2778b R11: 0000000063666572 R12: 0000000000000000 R13: fffffbfff404e2d4 R14: dffffc0000000000 R15: ffffffffa0271660 FS: 00007fbc81981540(0000) GS:ffff888119d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc14a142dc0 CR3: 0000000110a62003 CR4: 0000000000770ee0 DR0: ffffffff8fb0bce8 DR1: ffffffff8fb0bce9 DR2: ffffffff8fb0bcea DR3: ffffffff8fb0bceb DR6: 00000000fffe0ff0 DR7: 0000000000000600 PKRU: 55555554 Call Trace: <TASK> ? die_addr+0x3d/0xa0 ? exc_general_protection+0x144/0x220 ? asm_exc_general_protection+0x22/0x30 ? __kobject_del+0x62/0x1c0 kobject_del+0x32/0x50 parent_remove_sysfs_files+0xd6/0x170 [mdev] mdev_unregister_parent+0xfb/0x190 [mdev] ? mdev_register_parent+0x270/0x270 [mdev] ? find_module_all+0x9d/0xe0 mdpy_dev_exit+0x17/0x63 [mdpy] __do_sys_delete_module.constprop.0+0x2fa/0x4b0 ? module_flags+0x300/0x300 ? __fput+0x4e7/0xa00 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7fbc813221b7 Code: 73 01 c3 48 8b 0d d1 8c 2c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 8c 2c 00 f7 d8 64 89 01 48 RSP: 002b:00007ffe780e0648 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0 RAX: ffffffffffffffda RBX: 00007ffe780e06a8 RCX: 00007fbc813221b7 RDX: 000000000000000a RSI: 0000000000000800 RDI: 000055e214df9b58 RBP: 000055e214df9af0 R08: 00007ffe780df5c1 R09: 0000000000000000 R10: 00007fbc8139ecc0 R11: 0000000000000206 R12: 00007ffe780e0870 R13: 00007ffe780e0ed0 R14: 000055e214df9260 R15: 000055e214df9af0 </TASK> Modules linked in: mdpy(-) mdev vfio_iommu_type1 vfio [last unloaded: mdpy] Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace 0000000000000000 ]--- RIP: 0010:__kobject_del+0x62/0x1c0 Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 51 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 28 48 8d 7d 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 24 01 00 00 48 8b 75 10 48 89 df 48 8d 6b 3c e8 RSP: 0018:ffff88810695fd30 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffffffffa0270268 RCX: 0000000000000000 RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000010 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed10233a4ef1 R10: ffff888119d2778b R11: 0000000063666572 R12: 0000000000000000 R13: fffffbfff404e2d4 R14: dffffc0000000000 R15: ffffffffa0271660 FS: 00007fbc81981540(0000) GS:ffff888119d00000(000 ---truncated---
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/52093779b1830ac184a23848d971f06404cf513ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c01b2e0ee22ef8b4dd7509a93aecc0ac0826bae4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c777b11d34e0f47dbbc4b018ef65ad030f2b283aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/52093779b1830ac184a23848d971f06404cf513ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c01b2e0ee22ef8b4dd7509a93aecc0ac0826bae4Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c777b11d34e0f47dbbc4b018ef65ad030f2b283aPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.6
linux linux_kernel 6.6
linux linux_kernel 6.6


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C2C03A0E-8445-400B-B2DC-D296CF060FB8",
              "versionEndExcluding": "6.1.56",
              "versionStartIncluding": "6.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "870FC772-173A-4A0F-B1AF-7976AD6057D3",
              "versionEndExcluding": "6.5.6",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "84267A4F-DBC2-444F-B41D-69E15E1BEC97",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "FB440208-241C-4246-9A83-C1715C0DAA6C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "0DC421F1-3D5A-4BEF-BF76-4E468985D20B",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvfio/mdev: Fix a null-ptr-deref bug for mdev_unregister_parent()\n\nInject fault while probing mdpy.ko, if kstrdup() of create_dir() fails in\nkobject_add_internal() in kobject_init_and_add() in mdev_type_add()\nin parent_create_sysfs_files(), it will return 0 and probe successfully.\nAnd when rmmod mdpy.ko, the mdpy_dev_exit() will call\nmdev_unregister_parent(), the mdev_type_remove() may traverse uninitialized\nparent-\u003etypes[i] in parent_remove_sysfs_files(), and it will cause\nbelow null-ptr-deref.\n\nIf mdev_type_add() fails, return the error code and kset_unregister()\nto fix the issue.\n\n general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN\n KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]\n CPU: 2 PID: 10215 Comm: rmmod Tainted: G        W        N 6.6.0-rc2+ #20\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n RIP: 0010:__kobject_del+0x62/0x1c0\n Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 51 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 28 48 8d 7d 10 48 89 fa 48 c1 ea 03 \u003c80\u003e 3c 02 00 0f 85 24 01 00 00 48 8b 75 10 48 89 df 48 8d 6b 3c e8\n RSP: 0018:ffff88810695fd30 EFLAGS: 00010202\n RAX: dffffc0000000000 RBX: ffffffffa0270268 RCX: 0000000000000000\n RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000010\n RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed10233a4ef1\n R10: ffff888119d2778b R11: 0000000063666572 R12: 0000000000000000\n R13: fffffbfff404e2d4 R14: dffffc0000000000 R15: ffffffffa0271660\n FS:  00007fbc81981540(0000) GS:ffff888119d00000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007fc14a142dc0 CR3: 0000000110a62003 CR4: 0000000000770ee0\n DR0: ffffffff8fb0bce8 DR1: ffffffff8fb0bce9 DR2: ffffffff8fb0bcea\n DR3: ffffffff8fb0bceb DR6: 00000000fffe0ff0 DR7: 0000000000000600\n PKRU: 55555554\n Call Trace:\n  \u003cTASK\u003e\n  ? die_addr+0x3d/0xa0\n  ? exc_general_protection+0x144/0x220\n  ? asm_exc_general_protection+0x22/0x30\n  ? __kobject_del+0x62/0x1c0\n  kobject_del+0x32/0x50\n  parent_remove_sysfs_files+0xd6/0x170 [mdev]\n  mdev_unregister_parent+0xfb/0x190 [mdev]\n  ? mdev_register_parent+0x270/0x270 [mdev]\n  ? find_module_all+0x9d/0xe0\n  mdpy_dev_exit+0x17/0x63 [mdpy]\n  __do_sys_delete_module.constprop.0+0x2fa/0x4b0\n  ? module_flags+0x300/0x300\n  ? __fput+0x4e7/0xa00\n  do_syscall_64+0x35/0x80\n  entry_SYSCALL_64_after_hwframe+0x46/0xb0\n RIP: 0033:0x7fbc813221b7\n Code: 73 01 c3 48 8b 0d d1 8c 2c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 b0 00 00 00 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 8c 2c 00 f7 d8 64 89 01 48\n RSP: 002b:00007ffe780e0648 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0\n RAX: ffffffffffffffda RBX: 00007ffe780e06a8 RCX: 00007fbc813221b7\n RDX: 000000000000000a RSI: 0000000000000800 RDI: 000055e214df9b58\n RBP: 000055e214df9af0 R08: 00007ffe780df5c1 R09: 0000000000000000\n R10: 00007fbc8139ecc0 R11: 0000000000000206 R12: 00007ffe780e0870\n R13: 00007ffe780e0ed0 R14: 000055e214df9260 R15: 000055e214df9af0\n  \u003c/TASK\u003e\n Modules linked in: mdpy(-) mdev vfio_iommu_type1 vfio [last unloaded: mdpy]\n Dumping ftrace buffer:\n    (ftrace buffer empty)\n ---[ end trace 0000000000000000 ]---\n RIP: 0010:__kobject_del+0x62/0x1c0\n Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 51 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 28 48 8d 7d 10 48 89 fa 48 c1 ea 03 \u003c80\u003e 3c 02 00 0f 85 24 01 00 00 48 8b 75 10 48 89 df 48 8d 6b 3c e8\n RSP: 0018:ffff88810695fd30 EFLAGS: 00010202\n RAX: dffffc0000000000 RBX: ffffffffa0270268 RCX: 0000000000000000\n RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000010\n RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed10233a4ef1\n R10: ffff888119d2778b R11: 0000000063666572 R12: 0000000000000000\n R13: fffffbfff404e2d4 R14: dffffc0000000000 R15: ffffffffa0271660\n FS:  00007fbc81981540(0000) GS:ffff888119d00000(000\n---truncated---"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: vfio/mdev: corrige un error null-ptr-deref para mdev_unregister_parent() Inyecta el fallo al sondear mdpy.ko, si kstrdup() de create_dir() falla en kobject_add_internal() en kobject_init_and_add() en mdev_type_add() en parent_create_sysfs_files(), devolver\u00e1 0 y sondear\u00e1 exitosamente. Y cuando rmmod mdpy.ko, mdpy_dev_exit() llamar\u00e1 a mdev_unregister_parent(), mdev_type_remove() puede atravesar tipos padre-\u0026gt;[i] no inicializados en parent_remove_sysfs_files(), y provocar\u00e1 debajo de null-ptr-deref. Si mdev_type_add() falla, devuelva el c\u00f3digo de error y kset_unregister() para solucionar el problema. falla de protecci\u00f3n general, probablemente para direcci\u00f3n no can\u00f3nica 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref en rango [0x0000000000000010-0x00000000000000017] CPU: 2 PID: 10215 Comm: rmmod Tainted: GW N 6.6.0- rc2+ #20 Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.15.0-1 01/04/2014 RIP: 0010:__kobject_del+0x62/0x1c0 C\u00f3digo: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 51 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 28 48 8d 7d 10 48 89 fa 48 c1 ea 03 \u0026lt;80\u0026gt; 3c 02 00 0f 85 24 01 00 00 48 8b 7 5 10 48 89 gl 48 8d 6b 3c e8 RSP: 0018:ffff88810695fd30 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffffffffa0270268 RCX: 00000000000000000 RDX: 0000000000000000 2 RSI: 0000000000000004 RDI: 00000000000000010 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed10233a4ef1 R10: ffff888119d2778b R11: 00 00000063666572 R12: 0000000000000000 R13 : ffffbfff404e2d4 R14: dffffc0000000000 R15: fffffffa0271660 FS: 00007fbc81981540(0000) GS:ffff888119d00000(0000) knlGS:0000000000000000 CS: 0010 DS : 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc14a142dc0 CR3: 0000000110a62003 CR4: 0000000000770ee0 DR0: ffffffff8fb0bce8 DR1: ffffffff8fb0bce9 DR2: ffffffff8fb0bcea DR3: ffffffff8fb0bceb DR6: 00000000fffe0ff0 DR7: 0000000000000600 PKRU: 55555554 Seguimiento de llamadas:  ? die_addr+0x3d/0xa0? exc_general_protection+0x144/0x220? asm_exc_general_protection+0x22/0x30? __kobject_del+0x62/0x1c0 kobject_del+0x32/0x50 parent_remove_sysfs_files+0xd6/0x170 [mdev] mdev_unregister_parent+0xfb/0x190 [mdev] ? mdev_register_parent+0x270/0x270 [mdev] ? find_module_all+0x9d/0xe0 mdpy_dev_exit+0x17/0x63 [mdpy] __do_sys_delete_module.constprop.0+0x2fa/0x4b0 ? module_flags+0x300/0x300? __fput+0x4e7/0xa00 do_syscall_64+0x35/0x80 Entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7fbc813221b7 C\u00f3digo: 73 01 c3 48 8b 0d d1 8c 2c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 b0 00 00 00 0f 05 \u0026lt;48\u0026gt; 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 8c 2c 00 f7 d8 64 89 01 48 RSP: 002b:00007ffe780e0648 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0 RAX : ffffffffffffffda RBX: 00007ffe780e06a8 RCX: 00007fbc813221b7 RDX: 000000000000000a RSI: 00000000000000800 RDI: 000055e214df9b58 RBP: 000055e214d f9af0 R08: 00007ffe780df5c1 R09: 00000000000000000 R10: 00007fbc8139ecc0 R11: 0000000000000206 R12: 00007ffe780e0870 R13: 00007ffe780e0ed0 R14: 000055e214df9260 R15: 000055e214df9af0  M\u00f3dulos vinculados en: mdpy(-) mdev vfio_iommu_type1 vfio [\u00faltima descarga: mdpy] Dumping ftrace buffer: (ftrace buffer vac\u00edo) ---[ end trace 0000000000000000 ]--- RIP: 0010:__kobject_del+0x62/0x1c0 C\u00f3digo: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 51 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 28 48 8d 7d 10 48 89 fa 48 c1 ea 03 \u0026lt;80\u0026gt; 3c 02 00 0f 85 24 01 00 00 48 8b 75 10 48 89 df 48 8d 6b 3c e8 RSP: 0018:ffff88810695fd30 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: fffffffa0270268 RCX: 00000000000000000 RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000010 RBP: 0000000000000000 R08: 00000000000000001 R09: ffffed10233a4ef1 R10: ff ff888119d2778b R11: 0000000063666572 R12: 00000000000000000 R13: ffffbfff404e2d4 R14: dffffc0000000000 R15: ffffffffa0271660 FS: 00007fbc81981540(0000) GS:ffff88 8119d00000(000 ---truncado---"
    }
  ],
  "id": "CVE-2023-52570",
  "lastModified": "2024-12-11T15:21:44.063",
  "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": "2024-03-02T22:15:49.210",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/52093779b1830ac184a23848d971f06404cf513e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c01b2e0ee22ef8b4dd7509a93aecc0ac0826bae4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c777b11d34e0f47dbbc4b018ef65ad030f2b283a"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/52093779b1830ac184a23848d971f06404cf513e"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c01b2e0ee22ef8b4dd7509a93aecc0ac0826bae4"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c777b11d34e0f47dbbc4b018ef65ad030f2b283a"
    }
  ],
  "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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