CVE-2023-54291

Estado: AplazadaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

vduse: fix NULL pointer dereference

vduse_vdpa_set_vq_affinity callback can be called with NULL value as cpu_mask when deleting the vduse device.

This patch resets virtqueue's IRQ affinity mask value to set all CPUs instead of dereferencing NULL cpu_mask.

Detalles técnicos trazas, registros y código del informe original

[ 4760.952149] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 4760.959110] #PF: supervisor read access in kernel mode
[ 4760.964247] #PF: error_code(0x0000) - not-present page
[ 4760.969385] PGD 0 P4D 0
[ 4760.971927] Oops: 0000 [#1] PREEMPT SMP PTI
[ 4760.976112] CPU: 13 PID: 2346 Comm: vdpa Not tainted 6.4.0-rc6+ #4
[ 4760.982291] Hardware name: Dell Inc. PowerEdge R640/0W23H8, BIOS 2.8.1 06/26/2020
[ 4760.989769] RIP: 0010:memcpy_orig+0xc5/0x130
[ 4760.994049] Code: 16 f8 4c 89 07 4c 89 4f 08 4c 89 54 17 f0 4c 89 5c 17 f8 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 fa 08 72 1b <4c> 8b 06 4c 8b 4c 16 f8 4c 89 07 4c 89 4c 17 f8 c3 cc cc cc cc 66
[ 4761.012793] RSP: 0018:ffffb1d565abb830 EFLAGS: 00010246
[ 4761.018020] RAX: ffff9f4bf6b27898 RBX: ffff9f4be23969c0 RCX: ffff9f4bcadf6400
[ 4761.025152] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffff9f4bf6b27898
[ 4761.032286] RBP: 0000000000000000 R08: 0000000000000008 R09: 0000000000000000
[ 4761.039416] R10: 0000000000000000 R11: 0000000000000600 R12: 0000000000000000
[ 4761.046549] R13: 0000000000000000 R14: 0000000000000080 R15: ffffb1d565abbb10
[ 4761.053680] FS:  00007f64c2ec2740(0000) GS:ffff9f635f980000(0000) knlGS:0000000000000000
[ 4761.061765] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4761.067513] CR2: 0000000000000000 CR3: 0000001875270006 CR4: 00000000007706e0
[ 4761.074645] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4761.081775] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4761.088909] PKRU: 55555554
[ 4761.091620] Call Trace:
[ 4761.094074]  <TASK>
[ 4761.096180]  ? __die+0x1f/0x70
[ 4761.099238]  ? page_fault_oops+0x171/0x4f0
[ 4761.103340]  ? exc_page_fault+0x7b/0x180
[ 4761.107265]  ? asm_exc_page_fault+0x22/0x30
[ 4761.111460]  ? memcpy_orig+0xc5/0x130
[ 4761.115126]  vduse_vdpa_set_vq_affinity+0x3e/0x50 [vduse]
[ 4761.120533]  virtnet_clean_affinity.part.0+0x3d/0x90 [virtio_net]
[ 4761.126635]  remove_vq_common+0x1a4/0x250 [virtio_net]
[ 4761.131781]  virtnet_remove+0x5d/0x70 [virtio_net]
[ 4761.136580]  virtio_dev_remove+0x3a/0x90
[ 4761.140509]  device_release_driver_internal+0x19b/0x200
[ 4761.145742]  bus_remove_device+0xc2/0x130
[ 4761.149755]  device_del+0x158/0x3e0
[ 4761.153245]  ? kernfs_find_ns+0x35/0xc0
[ 4761.157086]  device_unregister+0x13/0x60
[ 4761.161010]  unregister_virtio_device+0x11/0x20
[ 4761.165543]  device_release_driver_internal+0x19b/0x200
[ 4761.170770]  bus_remove_device+0xc2/0x130
[ 4761.174782]  device_del+0x158/0x3e0
[ 4761.178276]  ? __pfx_vdpa_name_match+0x10/0x10 [vdpa]
[ 4761.183336]  device_unregister+0x13/0x60
[ 4761.187260]  vdpa_nl_cmd_dev_del_set_doit+0x63/0xe0 [vdpa]

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.18%
Percentil entre todas las CVEs puntuadas: 7
Fecha de la puntuación: 5/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux Kernel^AI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-54291",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "28f6288eb63d5979fa6758e64f52e4d55cf184a8",
              "lessThan": "f9d46429de2a251e1e4962e1bf86c344d6336562",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "28f6288eb63d5979fa6758e64f52e4d55cf184a8",
              "lessThan": "f06cf1e1a503169280467d12d2ec89bf2c30ace7",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/vdpa/vdpa_user/vduse_dev.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.4",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.4.4",
              "versionType": "semver",
              "lessThanOrEqual": "6.4.*"
            },
            {
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/vdpa/vdpa_user/vduse_dev.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-30T13:16:18.170",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/f06cf1e1a503169280467d12d2ec89bf2c30ace7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f9d46429de2a251e1e4962e1bf86c344d6336562",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvduse: fix NULL pointer dereference\n\nvduse_vdpa_set_vq_affinity callback can be called\nwith NULL value as cpu_mask when deleting the vduse\ndevice.\n\nThis patch resets virtqueue's IRQ affinity mask value\nto set all CPUs instead of dereferencing NULL cpu_mask.\n\n[ 4760.952149] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[ 4760.959110] #PF: supervisor read access in kernel mode\n[ 4760.964247] #PF: error_code(0x0000) - not-present page\n[ 4760.969385] PGD 0 P4D 0\n[ 4760.971927] Oops: 0000 [#1] PREEMPT SMP PTI\n[ 4760.976112] CPU: 13 PID: 2346 Comm: vdpa Not tainted 6.4.0-rc6+ #4\n[ 4760.982291] Hardware name: Dell Inc. PowerEdge R640/0W23H8, BIOS 2.8.1 06/26/2020\n[ 4760.989769] RIP: 0010:memcpy_orig+0xc5/0x130\n[ 4760.994049] Code: 16 f8 4c 89 07 4c 89 4f 08 4c 89 54 17 f0 4c 89 5c 17 f8 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 fa 08 72 1b <4c> 8b 06 4c 8b 4c 16 f8 4c 89 07 4c 89 4c 17 f8 c3 cc cc cc cc 66\n[ 4761.012793] RSP: 0018:ffffb1d565abb830 EFLAGS: 00010246\n[ 4761.018020] RAX: ffff9f4bf6b27898 RBX: ffff9f4be23969c0 RCX: ffff9f4bcadf6400\n[ 4761.025152] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffff9f4bf6b27898\n[ 4761.032286] RBP: 0000000000000000 R08: 0000000000000008 R09: 0000000000000000\n[ 4761.039416] R10: 0000000000000000 R11: 0000000000000600 R12: 0000000000000000\n[ 4761.046549] R13: 0000000000000000 R14: 0000000000000080 R15: ffffb1d565abbb10\n[ 4761.053680] FS:  00007f64c2ec2740(0000) GS:ffff9f635f980000(0000) knlGS:0000000000000000\n[ 4761.061765] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 4761.067513] CR2: 0000000000000000 CR3: 0000001875270006 CR4: 00000000007706e0\n[ 4761.074645] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 4761.081775] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 4761.088909] PKRU: 55555554\n[ 4761.091620] Call Trace:\n[ 4761.094074]  <TASK>\n[ 4761.096180]  ? __die+0x1f/0x70\n[ 4761.099238]  ? page_fault_oops+0x171/0x4f0\n[ 4761.103340]  ? exc_page_fault+0x7b/0x180\n[ 4761.107265]  ? asm_exc_page_fault+0x22/0x30\n[ 4761.111460]  ? memcpy_orig+0xc5/0x130\n[ 4761.115126]  vduse_vdpa_set_vq_affinity+0x3e/0x50 [vduse]\n[ 4761.120533]  virtnet_clean_affinity.part.0+0x3d/0x90 [virtio_net]\n[ 4761.126635]  remove_vq_common+0x1a4/0x250 [virtio_net]\n[ 4761.131781]  virtnet_remove+0x5d/0x70 [virtio_net]\n[ 4761.136580]  virtio_dev_remove+0x3a/0x90\n[ 4761.140509]  device_release_driver_internal+0x19b/0x200\n[ 4761.145742]  bus_remove_device+0xc2/0x130\n[ 4761.149755]  device_del+0x158/0x3e0\n[ 4761.153245]  ? kernfs_find_ns+0x35/0xc0\n[ 4761.157086]  device_unregister+0x13/0x60\n[ 4761.161010]  unregister_virtio_device+0x11/0x20\n[ 4761.165543]  device_release_driver_internal+0x19b/0x200\n[ 4761.170770]  bus_remove_device+0xc2/0x130\n[ 4761.174782]  device_del+0x158/0x3e0\n[ 4761.178276]  ? __pfx_vdpa_name_match+0x10/0x10 [vdpa]\n[ 4761.183336]  device_unregister+0x13/0x60\n[ 4761.187260]  vdpa_nl_cmd_dev_del_set_doit+0x63/0xe0 [vdpa]"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nvduse: corrección de desreferencia de puntero NULL\n\nLa función de callback vduse_vdpa_set_vq_affinity puede ser llamada\ncon un valor NULL como cpu_mask al eliminar el dispositivo vduse.\n\nEste parche restablece el valor de la máscara de afinidad IRQ de virtqueue\npara establecer todas las CPUs en lugar de desreferenciar un cpu_mask NULL.\n\n[ 4760.952149] BUG: desreferencia de puntero NULL del kernel, dirección: 0000000000000000\n[ 4760.959110] #PF: acceso de lectura de supervisor en modo kernel\n[ 4760.964247] #PF: error_code(0x0000) - página no presente\n[ 4760.969385] PGD 0 P4D 0\n[ 4760.971927] Oops: 0000 [#1] PREEMPT SMP PTI\n[ 4760.976112] CPU: 13 PID: 2346 Comm: vdpa No contaminado 6.4.0-rc6+ #4\n[ 4760.982291] Nombre del hardware: Dell Inc. PowerEdge R640/0W23H8, BIOS 2.8.1 06/26/2020\n[ 4760.989769] RIP: 0010:memcpy_orig+0xc5/0x130\n[ 4760.994049] Código: 16 f8 4c 89 07 4c 89 4f 08 4c 89 54 17 f0 4c 89 5c 17 f8 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 fa 08 72 1b &lt;4c&gt; 8b 06 4c 8b 4c 16 f8 4c 89 07 4c 89 4c 17 f8 c3 cc cc cc cc 66\n[ 4761.012793] RSP: 0018:ffffb1d565abb830 EFLAGS: 00010246\n[ 4761.018020] RAX: ffff9f4bf6b27898 RBX: ffff9f4be23969c0 RCX: ffff9f4bcadf6400\n[ 4761.025152] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffff9f4bf6b27898\n[ 4761.032286] RBP: 0000000000000000 R08: 0000000000000008 R09: 0000000000000000\n[ 4761.039416] R10: 0000000000000000 R11: 0000000000000600 R12: 0000000000000000\n[ 4761.046549] R13: 0000000000000000 R14: 0000000000000080 R15: ffffb1d565abbb10\n[ 4761.053680] FS: 00007f64c2ec2740(0000) GS:ffff9f635f980000(0000) knlGS:0000000000000000\n[ 4761.061765] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 4761.067513] CR2: 0000000000000000 CR3: 0000001875270006 CR4: 00000000007706e0\n[ 4761.074645] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 4761.081775] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 4761.088909] PKRU: 55555554\n[ 4761.091620] Traza de llamadas:\n[ 4761.094074] \n[ 4761.096180] ? __die+0x1f/0x70\n[ 4761.099238] ? page_fault_oops+0x171/0x4f0\n[ 4761.103340] ? exc_page_fault+0x7b/0x180\n[ 4761.107265] ? asm_exc_page_fault+0x22/0x30\n[ 4761.111460] ? memcpy_orig+0xc5/0x130\n[ 4761.115126] vduse_vdpa_set_vq_affinity+0x3e/0x50 [vduse]\n[ 4761.120533] virtnet_clean_affinity.part.0+0x3d/0x90 [virtio_net]\n[ 4761.126635] remove_vq_common+0x1a4/0x250 [virtio_net]\n[ 4761.131781] virtnet_remove+0x5d/0x70 [virtio_net]\n[ 4761.136580] virtio_dev_remove+0x3a/0x90\n[ 4761.140509] device_release_driver_internal+0x19b/0x200\n[ 4761.145742] bus_remove_device+0xc2/0x130\n[ 4761.149755] device_del+0x158/0x3e0\n[ 4761.153245] ? kernfs_find_ns+0x35/0xc0\n[ 4761.157086] device_unregister+0x13/0x60\n[ 4761.161010] unregister_virtio_device+0x11/0x20\n[ 4761.165543] device_release_driver_internal+0x19b/0x200\n[ 4761.170770] bus_remove_device+0xc2/0x130\n[ 4761.174782] device_del+0x158/0x3e0\n[ 4761.178276] ? __pfx_vdpa_name_match+0x10/0x10 [vdpa]\n[ 4761.183336] device_unregister+0x13/0x60\n[ 4761.187260] vdpa_nl_cmd_dev_del_set_doit+0x63/0xe0 [vdpa]"
    }
  ],
  "lastModified": "2026-06-17T06:47:10.067",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}