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2c6d4c27b9
Explicitly check that tdp_iter_start() is handed a valid shadow page to harden KVM against bugs, e.g. if KVM calls into the TDP MMU with an invalid or shadow MMU root (which would be a fatal KVM bug), the shadow page pointer will be NULL. Opportunistically stop the TDP MMU iteration instead of continuing on with garbage if the incoming root is bogus. Attempting to walk a garbage root is more likely to caused major problems than doing nothing. Cc: Yu Zhang <yu.c.zhang@linux.intel.com> Link: https://lore.kernel.org/r/20230729005200.1057358-4-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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| ipc | ||
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| .clang-format | ||
| .cocciconfig | ||
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| .gitignore | ||
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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.