Andreas Kling c6e552ac8f Kernel+LibELF: Don't blindly trust ELF symbol offsets in symbolication ... It was possible to craft a custom ELF executable that when symbolicated would cause the kernel to read from user-controlled addresses anywhere in memory. You could then fetch this memory via /proc/PID/stack We fix this by making ELFImage hand out StringView rather than raw const char* for symbol names. In case a symbol offset is outside the ELF image, you get a null StringView. :^) Test: Kernel/elf-symbolication-kernel-read-exploit.cpp		2020-01-16 22:11:31 +01:00
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Kernel	Kernel+LibELF: Don't blindly trust ELF symbol offsets in symbolication	2020-01-16 22:11:31 +01:00