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| Filename | Latest commit message | Latest commit date |
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e2897f133a
adpt_i2o_passthru() takes a user-provided message and passes it through to the hardware with appropriate translation of addresses and message IDs. It has a number of bugs: - When a message requires scatter/gather, it doesn't verify that the offset to the scatter/gather list is less than the message size. - When a message requires scatter/gather, it overwrites the DMA addresses with the user-space virtual addresses before unmapping the DMA buffers. - It reads the message from user memory multiple times. This allows user-space to change the message and bypass validation. - It assumes that the message is at least 4 words long, but doesn't check that. I tried fixing these, but even the maintainer of the corresponding user-space in Debian doesn't have the hardware any more. Instead, remove the pass-through ioctl (I2OUSRCMD) and supporting code. There is no corresponding upstream commit, because this driver was removed upstream. Fixes: |
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| README | ||
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 Restructured Text 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.