CVE-2023-53146

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer()<br /> <br /> In dw2102_i2c_transfer, msg is controlled by user. When msg[i].buf<br /> is null and msg[i].len is zero, former checks on msg[i].buf would be<br /> passed. Malicious data finally reach dw2102_i2c_transfer. If accessing<br /> msg[i].buf[0] without sanity check, null ptr deref would happen.<br /> We add check on msg[i].len to prevent crash.<br /> <br /> Similar commit:<br /> commit 950e252cb469<br /> ("[media] dw2102: limit messages to buffer size")