| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.18 155/181] parisc: Enable ARCH_HAS_STRICT_MODULE_RWX | Date | Mon, 27 Jun 2022 13:22:08 +0200 |
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From: Helge Deller <deller@gmx.de>
commit 0a1355db36718178becd2bfe728a023933d73123 upstream.
Fix a boot crash on a c8000 machine as reported by Dave. Basically it changes patch_map() to return an alias mapping to the to-be-patched code in order to prevent writing to write-protected memory.
Signed-off-by: Helge Deller <deller@gmx.de> Suggested-by: John David Anglin <dave.anglin@bell.net> Cc: stable@vger.kernel.org # v5.2+ Link: https://lore.kernel.org/all/e8ec39e8-25f8-e6b4-b7ed-4cb23efc756e@bell.net/ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- arch/parisc/Kconfig | 1 + 1 file changed, 1 insertion(+)
--- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -10,6 +10,7 @@ config PARISC select ARCH_WANT_FRAME_POINTERS select ARCH_HAS_ELF_RANDOMIZE select ARCH_HAS_STRICT_KERNEL_RWX + select ARCH_HAS_STRICT_MODULE_RWX select ARCH_HAS_UBSAN_SANITIZE_ALL select ARCH_HAS_PTE_SPECIAL select ARCH_NO_SG_CHAIN
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