From: Michael Hunold <hunold-ml@web.de>
To: Junfeng Yang <yjf@stanford.edu>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
mc@stanford.edu
Subject: Re: [CHECKER] 5 potential user-pointer errors that allow arbitrary reads from kernel
Date: Thu, 01 May 2003 14:54:17 +0200 [thread overview]
Message-ID: <3EB118F9.9030003@web.de> (raw)
In-Reply-To: <Pine.GSO.4.44.0304302131150.22117-100000@elaine24.Stanford.EDU>
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.
next prev parent reply other threads:[~2003-05-01 12:42 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-01 4:39 Junfeng Yang
2003-05-01 4:55 ` [CHECKER] 2 potential passing kernel-pointer into copy_*_user errors Junfeng Yang
2003-05-01 5:45 ` [CHECKER] 5 potential user-pointer errors that allow arbitrary reads from kernel Junfeng Yang
2003-05-01 12:54 ` Michael Hunold [this message]
2003-05-01 20:07 ` Junfeng Yang
2003-05-01 20:52 ` Greg KH
2003-05-01 20:53 ` Junfeng Yang
2003-05-02 6:43 ` [CHECKER] 4 potential user-pointer errors Junfeng Yang
2003-05-09 21:44 ` [CHECKER] Clarifications needed on a user-pointer false alarm in kernel/kmod.c Junfeng Yang
2003-05-12 6:29 ` [CHECKER] 1 potential derefence of user-pointer without verification error Junfeng Yang
2003-05-12 6:44 ` Junfeng Yang
2003-05-15 20:40 ` [CHECKER] 2 potential out-of-bound user-pointer errors in fs/readdir.c Junfeng Yang
2003-05-15 22:03 ` Andrew Morton
2003-05-16 0:29 ` Junfeng Yang
2003-05-12 21:19 ` [CHECKER] One more potential user-pointer error Junfeng Yang
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