fkie_cve-2023-53146
Vulnerability from fkie_nvd
Published
2025-05-14 13:15
Modified
2025-05-16 14:43
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer() In dw2102_i2c_transfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach dw2102_i2c_transfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash. Similar commit: commit 950e252cb469 ("[media] dw2102: limit messages to buffer size")
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/08dfcbd03b2b7f918c4f87c6ff637054e510df74
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5ae544d94abc8ff77b1b9bf8774def3fa5689b5b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/77cbd42d29de9ffc93d5529bab8813cde53af14c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/903566208ae6bb9c0e7e54355ce75bf6cf72485d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/97fdbdb750342cbc204befde976872fedb406ee6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/beb9550494e7349f92b9eaa283256a5ad9b1c9be
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ecbe6d011b95c7da59f014f8d26cb7245ed1e11e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fb28afab113a82b89ffec48c8155ec05b4f8cb5e
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer()\n\nIn dw2102_i2c_transfer, msg is controlled by user. When msg[i].buf\nis null and msg[i].len is zero, former checks on msg[i].buf would be\npassed. Malicious data finally reach dw2102_i2c_transfer. If accessing\nmsg[i].buf[0] without sanity check, null ptr deref would happen.\nWe add check on msg[i].len to prevent crash.\n\nSimilar commit:\ncommit 950e252cb469\n(\"[media] dw2102: limit messages to buffer size\")"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: media: dw2102: Se ha corregido la correcci\u00f3n de null-ptr-deref en dw2102_i2c_transfer(). En dw2102_i2c_transfer, el usuario controla msg. Cuando msg[i].buf es nulo y msg[i].len es cero, se superan las comprobaciones previas de msg[i].buf. Los datos maliciosos finalmente llegan a dw2102_i2c_transfer. Si se accede a msg[i].buf[0] sin una comprobaci\u00f3n de seguridad, se produce una correcci\u00f3n de ptr nula. Se ha a\u00f1adido una comprobaci\u00f3n de msg[i].len para evitar un fallo. Commit similar: commit 950e252cb469 (\"[media] dw2102: limitar los mensajes al tama\u00f1o del b\u00fafer\")"
    }
  ],
  "id": "CVE-2023-53146",
  "lastModified": "2025-05-16T14:43:56.797",
  "metrics": {},
  "published": "2025-05-14T13:15:47.083",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/08dfcbd03b2b7f918c4f87c6ff637054e510df74"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5ae544d94abc8ff77b1b9bf8774def3fa5689b5b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/77cbd42d29de9ffc93d5529bab8813cde53af14c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/903566208ae6bb9c0e7e54355ce75bf6cf72485d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/97fdbdb750342cbc204befde976872fedb406ee6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/beb9550494e7349f92b9eaa283256a5ad9b1c9be"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ecbe6d011b95c7da59f014f8d26cb7245ed1e11e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fb28afab113a82b89ffec48c8155ec05b4f8cb5e"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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