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CVE-2023-54277

Estado: AplazadaSin puntuar—

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

fbdev: udlfb: Fix endpoint check

The syzbot fuzzer detected a problem in the udlfb driver, caused by an endpoint not having the expected type:

The current approach for this issue failed to catch the problem because it only checks for the existence of a bulk-OUT endpoint; it doesn't check whether this endpoint is the one that the driver will actually use.

We can fix the problem by instead checking that the endpoint used by the driver does exist and is bulk-OUT.

Detalles técnicos trazas, registros y código del informe original
usb 1-1: Read EDID byte 0 failed: -71
usb 1-1: Unable to get valid EDID from device/display
------------[ cut here ]------------
usb 1-1: BOGUS urb xfer, pipe 3 != type 1
WARNING: CPU: 0 PID: 9 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880
drivers/usb/core/urb.c:504
Modules linked in:
CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted
6.4.0-rc1-syzkaller-00016-ga4422ff22142 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google
04/28/2023
Workqueue: usb_hub_wq hub_event
RIP: 0010:usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504
...
Call Trace:
 <TASK>
 dlfb_submit_urb+0x92/0x180 drivers/video/fbdev/udlfb.c:1980
 dlfb_set_video_mode+0x21f0/0x2950 drivers/video/fbdev/udlfb.c:315
 dlfb_ops_set_par+0x2a7/0x8d0 drivers/video/fbdev/udlfb.c:1111
 dlfb_usb_probe+0x149a/0x2710 drivers/video/fbdev/udlfb.c:1743

CVSS

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

Probabilidad de explotación (EPSS)

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 KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2023-54277",
  "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": "f6db63819db632158647d5bbf4d7d2d90dc1a268",
              "lessThan": "1522dc58bff87af79461b96d90ec122e9e726004",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c4fb41bdf4d6ccca850c4af5d707d14a0fb717a7",
              "lessThan": "58ecc165abdaed85447455e6dc396758e8c6f219",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4df1584738f1dc6f0dd854d258bba48591f1ed0e",
              "lessThan": "9e12c58a5ece41be72157cef348576b135c9fc72",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "aaf7dbe07385e0b8deb7237eca2a79926bbc7091",
              "lessThan": "c8fdf7feca77cd99e25ef0a1e9e72dfc83add8ef",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "aaf7dbe07385e0b8deb7237eca2a79926bbc7091",
              "lessThan": "e19383e5dee5adbf3d19f3f210f440a88d1b7dde",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "aaf7dbe07385e0b8deb7237eca2a79926bbc7091",
              "lessThan": "ed9de4ed39875706607fb08118a58344ae6c5f42",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "895ea8a290ba87850bcaf2ecfcddef75a014fa54",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5.4.192",
              "lessThan": "5.4.244",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "5.10.114",
              "lessThan": "5.10.181",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "5.15.38",
              "lessThan": "5.15.114",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "5.17.6",
              "lessThan": "5.18",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "drivers/video/fbdev/udlfb.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.18",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.4.244",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "status": "unaffected",
              "version": "5.10.181",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.114",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.31",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.3.5",
              "versionType": "semver",
              "lessThanOrEqual": "6.3.*"
            },
            {
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/video/fbdev/udlfb.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-30T13:16:16.643",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1522dc58bff87af79461b96d90ec122e9e726004",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/58ecc165abdaed85447455e6dc396758e8c6f219",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9e12c58a5ece41be72157cef348576b135c9fc72",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c8fdf7feca77cd99e25ef0a1e9e72dfc83add8ef",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e19383e5dee5adbf3d19f3f210f440a88d1b7dde",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ed9de4ed39875706607fb08118a58344ae6c5f42",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: udlfb: Fix endpoint check\n\nThe syzbot fuzzer detected a problem in the udlfb driver, caused by an\nendpoint not having the expected type:\n\nusb 1-1: Read EDID byte 0 failed: -71\nusb 1-1: Unable to get valid EDID from device/display\n------------[ cut here ]------------\nusb 1-1: BOGUS urb xfer, pipe 3 != type 1\nWARNING: CPU: 0 PID: 9 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880\ndrivers/usb/core/urb.c:504\nModules linked in:\nCPU: 0 PID: 9 Comm: kworker/0:1 Not tainted\n6.4.0-rc1-syzkaller-00016-ga4422ff22142 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google\n04/28/2023\nWorkqueue: usb_hub_wq hub_event\nRIP: 0010:usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504\n...\nCall Trace:\n <TASK>\n dlfb_submit_urb+0x92/0x180 drivers/video/fbdev/udlfb.c:1980\n dlfb_set_video_mode+0x21f0/0x2950 drivers/video/fbdev/udlfb.c:315\n dlfb_ops_set_par+0x2a7/0x8d0 drivers/video/fbdev/udlfb.c:1111\n dlfb_usb_probe+0x149a/0x2710 drivers/video/fbdev/udlfb.c:1743\n\nThe current approach for this issue failed to catch the problem\nbecause it only checks for the existence of a bulk-OUT endpoint; it\ndoesn't check whether this endpoint is the one that the driver will\nactually use.\n\nWe can fix the problem by instead checking that the endpoint used by\nthe driver does exist and is bulk-OUT."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nfbdev: udlfb: Corregir la verificación del punto final\n\nEl fuzzer syzbot detectó un problema en el controlador udlfb, causado por un punto final que no tenía el tipo esperado:\n\nusb 1-1: Read EDID byte 0 failed: -71\nusb 1-1: Unable to get valid EDID from device/display\n------------[ cut here ]------------\nusb 1-1: BOGUS urb xfer, pipe 3 != type 1\nWARNING: CPU: 0 PID: 9 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880\ndrivers/usb/core/urb.c:504\nModules linked in:\nCPU: 0 PID: 9 Comm: kworker/0:1 Not tainted\n6.4.0-rc1-syzkaller-00016-ga4422ff22142 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google\n04/28/2023\nWorkqueue: usb_hub_wq hub_event\nRIP: 0010:usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504\n...\nCall Trace:\n \n dlfb_submit_urb+0x92/0x180 drivers/video/fbdev/udlfb.c:1980\n dlfb_set_video_mode+0x21f0/0x2950 drivers/video/fbdev/udlfb.c:315\n dlfb_ops_set_par+0x2a7/0x8d0 drivers/video/fbdev/udlfb.c:1111\n dlfb_usb_probe+0x149a/0x2710 drivers/video/fbdev/udlfb.c:1743\n\nEl enfoque actual para este problema no logró detectar el problema porque solo verifica la existencia de un punto final bulk-OUT; no verifica si este punto final es el que el controlador realmente utilizará.\n\nPodemos solucionar el problema al verificar en su lugar que el punto final utilizado por el controlador existe y es bulk-OUT."
    }
  ],
  "lastModified": "2026-06-17T06:47:08.607",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}