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90ef1dcb1d
The function amdgpu_virt_get_dynamic_data_info() writes a 64-bit size
value. In two places (amdgpu_bios.c and amdgpu_discovery.c), the code
passed the address of a smaller variable by casting it to u64 *, which
is unsafe.
This could make the function write more bytes than the smaller variable
can hold, possibly overwriting nearby memory. Reported by static
analysis tools.
v2: Dynamic region size comes from the host (SR-IOV setup) and is always
fixed to 5 MB. (Lijo/Ellen)
5 MB easily fits inside a 32-bit value, so using a 64-bit type is not
needed. It also avoids extra type casts
Fixes:
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History
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .pylintrc | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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 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.