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2b8bdc5237
To access firmware elements appended after multi-firmware, add its size
as offset to get start address of firmware elements.
+-----+-------+------+---------+--------------+ --
| sig | fw_nr | rsvd | version | reserved | \
+---------------------------------------------+ |
fw 0 | cv | type | mp | rsvd | shift | size | rsvd | |
+---------------------------------------------+ |
fw 1 | cv | type | mp | rsvd | shift | size | rsvd | |
+---------------------------------------------+ |
fw N-1 | ... | |
+=============================================+ | mfw size
| fw 0 content | |
+=============================================+ |
| fw 1 content | |
+=============================================+ |
| ... | |
+=============================================+ |
| fw N -1 content | |
+=============================================+ --/
| fw element TLV X |
+=============================================+
| fw element TLV Y |
+=============================================+
| fw element TLV Z |
+=============================================+
To avoid Coverity warning when getting mfw size, validate it header ahead.
Addresses-Coverity-ID: 1544385 ("Untrusted array index read")
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250203072911.47313-5-pkshih@realtek.com
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.