linux-kernel - Re: [PATCH][next][V2] selftests: kvm: fix shift of 32 bit unsigned int more than 32 bits

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Date: Tue,  4 Jun 2024 16:29:17 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Sean Christopherson <seanjc@...gle.com>, Paolo Bonzini <pbonzini@...hat.com>, 
	Shuah Khan <shuah@...nel.org>, kvm@...r.kernel.org, linux-kselftest@...r.kernel.org, 
	Colin Ian King <colin.i.king@...il.com>
Cc: kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next][V2] selftests: kvm: fix shift of 32 bit unsigned
 int more than 32 bits

On Thu, 23 May 2024 16:41:02 +0100, Colin Ian King wrote:
> Currrentl a 32 bit 1u value is being shifted more than 32 bits causing
> overflow and incorrect checking of bits 32-63. Fix this by using the
> BIT_ULL macro for shifting bits.
> 
> Detected by cppcheck:
> sev_init2_tests.c:108:34: error: Shifting 32-bit value by 63 bits is
> undefined behaviour [shiftTooManyBits]
> 
> [...]

Applied to kvm-x86 fixes, thanks!

[1/1] selftests: kvm: fix shift of 32 bit unsigned int more than 32 bits
      https://github.com/kvm-x86/linux/commit/9a68cefe9f05

--
https://github.com/kvm-x86/linux/tree/next