Re: [PATCH][next] KVM: x86: Fix bit shifting in update_intel_pt_cfg

Radim Krčmář
2019-01-11T13:39:45Z

2018-12-26 14:40-0600, Gustavo A. R. Silva:
> ctl_bitmask in pt_desc is of type u64. When an integer like 0xf is
> being left shifted more than 32 bits, the behavior is undefined.
>
> Fix this by adding suffix ULL to integer 0xf.
>
> Addresses-Coverity-ID: 1476095 ("Bad bit shift operation")
> Fixes: 6c0f0bba85a0 ("KVM: x86: Introduce a function to initialize the PT configuration")
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
> ---

Applied, thanks.