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https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
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d6cbf916f2
[ Upstream commit 8ba38a7a9a699905b84fa97578a8291010dec273 ] emulate_vsyscall() expects to see X86_PF_INSTR in PFEC on a vsyscall page fault, but the CPU does not report X86_PF_INSTR if neither X86_FEATURE_NX nor X86_FEATURE_SMEP are enabled. X86_FEATURE_NX should be enabled on nearly all 64-bit CPUs, except for early P4 processors that did not support this feature. Instead of explicitly checking for X86_PF_INSTR, compare the fault address to RIP. On machines with X86_FEATURE_NX enabled, issue a warning if RIP is equal to fault address but X86_PF_INSTR is absent. [ dhansen: flesh out code comments ] Originally-by: Dave Hansen <dave.hansen@intel.com> Reported-by: Andrew Cooper <andrew.cooper3@citrix.com> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com> Link: https://lore.kernel.org/all/bd81a98b-f8d4-4304-ac55-d4151a1a77ab@intel.com Link: https://lore.kernel.org/all/20250624145918.2720487-1-kirill.shutemov%40linux.intel.com Signed-off-by: Sasha Levin <sashal@kernel.org> |
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| lib | ||
| math-emu | ||
| mm | ||
| net | ||
| oprofile | ||
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| Kconfig | ||
| Kconfig.cpu | ||
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| Makefile_32.cpu | ||