[libvirt] [PATCHv2] util: fix off-by-one when expanding a bitmap

Michal Privoznik mprivozn at redhat.com
Tue Feb 14 15:18:45 UTC 2017


On 02/14/2017 01:46 PM, Ján Tomko wrote:
> To make sure bit 'b' fits into the bitmap, we need to allocate b+1
> bits, since we number from 0.
> 
> Adjust the bitmap test to set a bit at a multiple of 16.
> That way the test fails without this fix, because the VIR_REALLOC
> call clears the newly added memory even if the original pointer
> has not changed.
> ---
>  src/util/virbitmap.c  | 2 +-
>  tests/virbitmaptest.c | 6 +++---
>  2 files changed, 4 insertions(+), 4 deletions(-)

ACK

Michal




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