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CVE-2023-53146

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].bufis null and msg[i].len is zero, former checks on msg[i].buf would bepassed. Malicious data finally reach dw2102_i2c_transfer. If accessingmsg[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")

POC

Reference

No PoCs from references.

Github

- https://github.com/fkie-cad/nvd-json-data-feeds