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| author | Ard Biesheuvel <ardb@kernel.org> | 2022-11-30 19:37:17 +0300 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2022-12-01 16:48:26 +0300 |
| commit | 7572ac3c979d4d0fb42d73a72d2608656516ff4f (patch) | |
| tree | 1f5d452d5b93e3ac525dbaa04ed9106aa9ba4b18 /arch/arm64/mm/fault.c | |
| parent | 9b9eaee9828fe98b030cf43ac50065a54a2f5d52 (diff) | |
| download | linux-7572ac3c979d4d0fb42d73a72d2608656516ff4f.tar.xz | |
arm64: efi: Revert "Recover from synchronous exceptions ..."
This reverts commit 23715a26c8d81291, which introduced some code in
assembler that manipulates both the ordinary and the shadow call stack
pointer in a way that could potentially be taken advantage of. So let's
revert it, and do a better job the next time around.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'arch/arm64/mm/fault.c')
| -rw-r--r-- | arch/arm64/mm/fault.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index 3e9cf9826417..5b391490e045 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -30,7 +30,6 @@ #include <asm/bug.h> #include <asm/cmpxchg.h> #include <asm/cpufeature.h> -#include <asm/efi.h> #include <asm/exception.h> #include <asm/daifflags.h> #include <asm/debug-monitors.h> @@ -392,9 +391,6 @@ static void __do_kernel_fault(unsigned long addr, unsigned long esr, msg = "paging request"; } - if (efi_runtime_fixup_exception(regs, msg)) - return; - die_kernel_fault(msg, addr, esr, regs); } |