Minimal supplement to upstream Kernel Self Protection Project changes. Features already provided by SELinux + Yama and archs other than multiarch arm64 / x86_64 aren't in scope. Only tags have stable history. Shared IRC channel with KSPP: irc.libera.chat #linux-hardening
d46450737c
This ensures that the GPU isn't able to write into already freed objects, as doing this in the IOVA reaper isn't enough, as the gem_free_object path will also cause unmaps to happen. On MMUv2 this also ensures that stale entries, which may have been prefetched into the TLB will be purged. The flush is low overhead, as it gets batched up with the next user command buffer, so this isn't incuring an overhead for each buffer map/unmap. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com> |
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| drivers | ||
| firmware | ||
| fs | ||
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| ipc | ||
| kernel | ||
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| samples | ||
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.