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5ba1071f75
Don't perform unaligned loads in __get_next() and __peek_nbyte_next() as these are forms of undefined behavior: "A pointer to an object or incomplete type may be converted to a pointer to a different object or incomplete type. If the resulting pointer is not correctly aligned for the pointed-to type, the behavior is undefined." (from http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1256.pdf) These problems were identified using the undefined behavior sanitizer (ubsan) with the tools version of the code and perf test. [ bp: Massage commit message. ] Signed-off-by: Numfor Mbiziwo-Tiapo <nums@google.com> Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lkml.kernel.org/r/20210923161843.751834-1-irogers@google.com |
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| arc/include/uapi/asm | ||
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| arm64/include | ||
| csky/include/uapi/asm | ||
| h8300/include | ||
| hexagon/include/uapi/asm | ||
| ia64/include | ||
| microblaze/include/uapi/asm | ||
| mips/include | ||
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| riscv/include/uapi/asm | ||
| s390/include | ||
| sh/include | ||
| sparc/include | ||
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| xtensa/include | ||