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(-)linux.orig/arch/x86_64/kernel/ptrace.c (+5 lines)
Lines 276-281 Link Here
276 
				return -EIO;
 276 
				return -EIO;
277 
			value &= 0xffff;
 277 
			value &= 0xffff;
278 
			break;
 278 
			break;
279 
		case offsetof(struct user_regs_struct, rip):
280 
			/* Check if the new RIP address is canonical */
281 
			if (!(value >> 47 == 0 || value >> 47 == 0x1ffff))
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				return -EIO;
283 
			break;
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	}
 284 
	}
280 
	put_stack_long(child, regno - sizeof(struct pt_regs), value);
 285 
	put_stack_long(child, regno - sizeof(struct pt_regs), value);
281 
	return 0;
 286 
	return 0;

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