描述
In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb: dtv5100: fix out-of-bounds in dtv5100_i2c_msg() rlen value is a user-controlled value, but dtv5100_i2c_msg() does not check the size of the rlen value. Therefore, if it is set to a value larger than sizeof(st->data), an out-of-bounds vuln occurs for st->data. Therefore, we need to add proper range checking to prevent this vuln.
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参考资料
- https://git.kernel.org/stable/c/4a54d8fcb093761e4c56eb211cf4e39bf8401fa1
- https://git.kernel.org/stable/c/61f214a878e96e2a8750bf96a98f78c658dba60c
- https://git.kernel.org/stable/c/ac92151ff2494130d9fc686055d6bbb9743a673e
- https://git.kernel.org/stable/c/b91e6aafe8d356086cc621bc03e35ba2299e4788
- https://git.kernel.org/stable/c/fe3e129ab49806aaaa3f22067ebc75c2dfbe4658