CVE-2023-53146 – “Linux Media DW2102 Null Pointer Dereference Vulnerability”

CVE ID : CVE-2023-53146

Published : May 14, 2025, 1:15 p.m. | 1 hour, 38 minutes ago

Description : 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”)

Severity: 0.0 | NA

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