enable docker ppp

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2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/arch/x86/kernel/signal_compat.c
..
..
@@ -27,7 +27,7 @@
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 	 */
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 	BUILD_BUG_ON(NSIGILL  != 11);
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 	BUILD_BUG_ON(NSIGFPE  != 15);
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-	BUILD_BUG_ON(NSIGSEGV != 7);
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+	BUILD_BUG_ON(NSIGSEGV != 9);
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 	BUILD_BUG_ON(NSIGBUS  != 5);
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 	BUILD_BUG_ON(NSIGTRAP != 5);
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 	BUILD_BUG_ON(NSIGCHLD != 6);
..
..
@@ -165,15 +165,8 @@
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 {
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 	signal_compat_build_tests();
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-	/* Don't leak in-kernel non-uapi flags to user-space */
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-	if (oact)
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-		oact->sa.sa_flags &= ~(SA_IA32_ABI | SA_X32_ABI);
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-
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 	if (!act)
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 		return;
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-
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-	/* Don't let flags to be set from userspace */
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-	act->sa.sa_flags &= ~(SA_IA32_ABI | SA_X32_ABI);
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 	if (in_ia32_syscall())
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 		act->sa.sa_flags |= SA_IA32_ABI;