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| author | Martin Radev <martin.b.radev@gmail.com> | 2022-05-09 23:39:40 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-05-20 21:36:32 +0100 |
| commit | a68a52cd8ab76483b3592ddc0f7dbf40b4bd55ba (patch) | |
| tree | f9a712aa969ca0c40b33809b6af80e69883da50e | |
| parent | 31e0eacca520f60ac02dfaaaeaeddfcc132095c0 (diff) | |
| download | kvmtool-a68a52cd8ab76483b3592ddc0f7dbf40b4bd55ba.tar.gz | |
kvmtool: Have stack be not executable on x86
This patch fixes an issue of having the stack be executable
for x86 builds by ensuring that the two objects bios-rom.o
and entry.o have the section .note.GNU-stack.
Suggested-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Martin Radev <martin.b.radev@gmail.com>
Link: https://lore.kernel.org/r/20220509203940.754644-7-martin.b.radev@gmail.com
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | x86/bios/bios-rom.S | 5 | ||||
| -rw-r--r-- | x86/bios/entry.S | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/x86/bios/bios-rom.S b/x86/bios/bios-rom.S index 3269ce97..d1c8b25a 100644 --- a/x86/bios/bios-rom.S +++ b/x86/bios/bios-rom.S @@ -10,3 +10,8 @@ GLOBAL(bios_rom) .incbin "x86/bios/bios.bin" END(bios_rom) + +/* + * Add this section to ensure final binary has a non-executable stack. + */ +.section .note.GNU-stack,"",@progbits diff --git a/x86/bios/entry.S b/x86/bios/entry.S index 85056e98..1b71f898 100644 --- a/x86/bios/entry.S +++ b/x86/bios/entry.S @@ -90,3 +90,8 @@ GLOBAL(__locals) #include "local.S" END(__locals) + +/* + * Add this section to ensure final binary has a non-executable stack. + */ +.section .note.GNU-stack,"",@progbits |