Messages in this thread Patch in this message | | | Subject | patch "ihex: Check if zero-length record is at the end of the blob" added to driver-core-next | From | <> | Date | Fri, 25 Jan 2019 08:58:41 +0100 |
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This is a note to let you know that I've just added the patch titled
ihex: Check if zero-length record is at the end of the blob
to my driver-core git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git in the driver-core-next branch.
The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)
The patch will also be merged in the next major kernel release during the merge window.
If you have any questions about this process, please let me know.
From 5158c36ec9d0b3343f58987cec7ebfd866331fd0 Mon Sep 17 00:00:00 2001 From: Andrey Smirnov <andrew.smirnov@gmail.com> Date: Thu, 20 Dec 2018 23:28:38 -0800 Subject: ihex: Check if zero-length record is at the end of the blob
When verifying the validity of IHEX file we need to make sure that zero-length record we found is located at the end of the file. Not doing that could result in an invalid file with a bogus zero-length in the middle short-circuiting the check and being reported as valid.
Cc: Chris Healy <cphealy@gmail.com> Cc: Kyle McMartin <kyle@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: linux-kernel <linux-kernel@vger.kernel.org> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- include/linux/ihex.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/ihex.h b/include/linux/ihex.h index 9c701521176b..9130f307a420 100644 --- a/include/linux/ihex.h +++ b/include/linux/ihex.h @@ -49,7 +49,7 @@ static inline int ihex_validate_fw(const struct firmware *fw) for (; rec <= end; rec = __ihex_next_binrec(rec)) { /* Zero length marks end of records */ - if (!be16_to_cpu(rec->len)) + if (rec == end && !be16_to_cpu(rec->len)) return 0; } return -EINVAL; -- 2.20.1
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