CVE-2023-53220 (GCVE-0-2023-53220)
Vulnerability from cvelistv5
Published
2025-09-15 14:21
Modified
2026-05-11 19:40
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: media: az6007: Fix null-ptr-deref in az6007_i2c_xfer() In az6007_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 az6007_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()")
References
Impacted products
Vendor Product Version
Linux Linux Version: caa1a700ed2a06a831e6a7db5d9f213fc63caee3
Version: caa1a700ed2a06a831e6a7db5d9f213fc63caee3
Version: caa1a700ed2a06a831e6a7db5d9f213fc63caee3
Version: caa1a700ed2a06a831e6a7db5d9f213fc63caee3
Version: caa1a700ed2a06a831e6a7db5d9f213fc63caee3
Version: caa1a700ed2a06a831e6a7db5d9f213fc63caee3
Version: caa1a700ed2a06a831e6a7db5d9f213fc63caee3
Version: caa1a700ed2a06a831e6a7db5d9f213fc63caee3
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