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0a7c10df49
pointer in NMI is not coming from the syscall gap, correctly track IRQ states in the #VC handler and access user insn bytes atomically in same handler as latter cannot sleep. - Balance 32-bit fast syscall exit path to do the proper work on exit and thus not confuse audit and ptrace frameworks. - Two fixes for the ORC unwinder going "off the rails" into KASAN redzones and when ORC data is missing. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmBN+ksACgkQEsHwGGHe VUpYtBAAj199n50ipP2x+jjgCueIytMqwCCRozrgZ8JF0Al83piVfjhuAYQpfvD8 cKCxN/jSEF0YoUg/grBTPLG6f0J4B2GoekSlSc3ljnuhBby4iJ9B4YgE7qym6tuT G/mBOuAo2HBzvB70i1BYPN6mrA+6SG1d4tIhRLGKHCz+hQm8yYnJYVbiOkLBECeP 0QOOpX6hR5ytOOCRqwD/O5YIdZD8NvlA4sQE522Mrw/4PWz9XcS2kwpOQFHoRsFL if3t2yLMiGMfV0dyUCMoGZl0NqpnIZynoNdVPq/bllTW5obnmh6z8Eir44PzJmVJ ftVZTcReRqm5ObgwZh0g1H7CRjKe0xU9FyJHRmQl3Xb5g3wRAm3OkMJ2hQcOUPy9 VOB4vp7kbDg3MmGJe2xOtsEeAyVHGzTaWlmZ0moxjJXiLTjUy69eelmvLepypO3P Bo/xpjn9hN7L9ptKv1exsSatQRN7KWTCxtz+NBJgC4pEpkdtDBkaWunIKeauPTZ2 CAJJrp2sn7i5/CKPOuhjbQ+nSTMptpuZQxTDrjVUO0/6qs4ffQT3O+WXRV1bQ07v ObRqi0hIYgm4vSiBfVRfxOU+Zrx0j3kny4/xUs6CIjMjrjIp4RgBbqvZ95ZMooMi yeyZdVfzQ7PRaam5J2V3IHxKz7554hvMl5Zf4zAdl0qcQw3YZ0o= =rw8S -----END PGP SIGNATURE----- Merge tag 'x86_urgent_for_v5.12_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: - A couple of SEV-ES fixes and robustifications: verify usermode stack pointer in NMI is not coming from the syscall gap, correctly track IRQ states in the #VC handler and access user insn bytes atomically in same handler as latter cannot sleep. - Balance 32-bit fast syscall exit path to do the proper work on exit and thus not confuse audit and ptrace frameworks. - Two fixes for the ORC unwinder going "off the rails" into KASAN redzones and when ORC data is missing. * tag 'x86_urgent_for_v5.12_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/sev-es: Use __copy_from_user_inatomic() x86/sev-es: Correctly track IRQ states in runtime #VC handler x86/sev-es: Check regs->sp is trusted before adjusting #VC IST stack x86/sev-es: Introduce ip_within_syscall_gap() helper x86/entry: Fix entry/exit mismatch on failed fast 32-bit syscalls x86/unwind/orc: Silence warnings caused by missing ORC data x86/unwind/orc: Disable KASAN checking in the ORC unwinder, part 2 |
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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.