CVE-2023-54314

In the Linux kernel, the following vulnerability has been resolved: media: af9005: Fix null-ptr-deref in af9005_i2c_xfer In af9005_i2c_xfer, 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 af9005_i2c_xfer. 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 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/033b0c0780adee32dde218179e9bc51d2525108f
https://git.kernel.org/stable/c/0c02eb70b1dd4ae9bb304ce6cdadbc6faba2b2e9
https://git.kernel.org/stable/c/63d962ac7a52c0ff4cd09af2e284dce5e5955dfe
https://git.kernel.org/stable/c/98c12abb275b75a98ff62de9466d21e4daa98536
https://git.kernel.org/stable/c/abb6fd93e05e80668d2317fe1110bc99b05034c3
https://git.kernel.org/stable/c/c7e5ac737db25d7387fe517cb5207706782b6cf8
https://git.kernel.org/stable/c/e595ff350b2fd600823ee8491df7df693ae4b7c5
https://git.kernel.org/stable/c/f4ee84f27625ce1fdf41e8483fa0561a1b837d10

Configurations

No configuration.

History

No history.

Information

Published : 2025-12-30 13:16

Updated : 2026-06-17 06:47

NVD link : CVE-2023-54314

Mitre link : CVE-2023-54314

CVE.ORG link : CVE-2023-54314

JSON object : View

Products Affected

No product.

CWE

No CWE.

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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 af9005_i2c_xfer. 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 0ed554fd769a\n(\"media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()\")"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmedia: af9005: Correcci\u00f3n de desreferencia de puntero nulo en af9005_i2c_xfer\n\nEn af9005_i2c_xfer, msg es controlado por el usuario. Cuando msg[i].buf es nulo y msg[i].len es cero, las comprobaciones anteriores en msg[i].buf se pasar\u00edan. Datos maliciosos finalmente alcanzan af9005_i2c_xfer. Si se accede a msg[i].buf[0] sin una comprobaci\u00f3n de cordura, ocurrir\u00eda una desreferencia de puntero nulo. A\u00f1adimos una comprobaci\u00f3n en msg[i].len para prevenir un fallo.\n\nCommit similar:\ncommit 0ed554fd769a\n('media: dvb-usb: az6027: correcci\u00f3n de desreferencia de puntero nulo en az6027_i2c_xfer()')"}], "lastModified": "2026-06-17T06:47:12.603", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}