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.
Alexei Starovoitov
authored
The verifier checks that PTR_TO_BTF_ID pointer is either valid or NULL, but it cannot distinguish IS_ERR pointer from valid one. When offset is added to IS_ERR pointer it may become small positive value which is a user address that is not handled by extable logic and has to be checked for at the runtime. Tighten BPF_PROBE_MEM pointer check code to prevent this case. Fixes: 4c5de127 ("bpf: Emit explicit NULL pointer checks for PROBE_LDX instructions.") Reported-by:Lorenzo Fontana <lorenzo.fontana@elastic.co> Signed-off-by:
Alexei Starovoitov <ast@kernel.org> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
Daniel Borkmann <daniel@iogearbox.net>
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arch | ||
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certs | ||
crypto | ||
drivers | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
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net | ||
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usr | ||
virt | ||
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COPYING | ||
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Kbuild | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
README |