CVE-2023-54066

In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer In gl861_i2c_master_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 gl861_i2c_master_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()")

The following products are affected by CVE-2023-54066 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2023-54066.

URL	Resource
https://git.kernel.org/stable/c/2a33fc57133d6f39d62285df6706aeb1714967f1
https://git.kernel.org/stable/c/578b67614ae0e4fba3945b66a4c8f9ae77115bcb
https://git.kernel.org/stable/c/72af676551efe820e309a6c7681c2c4372f37376
https://git.kernel.org/stable/c/b97719a66970601cd3151a3e2020f4454a1c4ff6
https://git.kernel.org/stable/c/dfcd3c010209927b9f45b860f046635dc32e32e1
https://lore.kernel.org/linux-cve-announce/2025122430-CVE-2023-54066-8ff7@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2023-54066
https://www.cve.org/CVERecord?id=CVE-2023-54066