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SubjectRe: [CHECKER] 5 potential user-pointer errors that allow arbitrary reads from kernel
Hello Junfeng,

> This is a resend (the previous report was ignored, however I feel that
> these bugs could be severe).

> Please confirm or clarify. Thanks!

> [BUG] proc_dir_entry.write_proc can take tainted inputs.
> av7110_ir_write_proc is assigned to proc_dir_entry.write_proc
>
> /home/junfeng/linux-2.5.63/drivers/media/dvb/av7110/av7110_ir.c:116:av7110_ir_write_proc:
> ERROR:TAINTED:116:116: passing tainted ptr 'buffer' to __constant_memcpy
> [Callstack:
> /home/junfeng/linux-2.5.63/net/core/pktgen.c:991:av7110_ir_write_proc((tainted
> 1))]

Confirmed. I'll post a patch when I'm back at work again on Monday.

CU
Michael.

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