[arch-releng] [RFC] [PATCH] [archiso] Avoid integer overflow when .fs is > 10.2G
--- archiso/initcpio/hooks/archiso | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/archiso/initcpio/hooks/archiso b/archiso/initcpio/hooks/archiso index 491ed2f..66a6273 100644 --- a/archiso/initcpio/hooks/archiso +++ b/archiso/initcpio/hooks/archiso @@ -11,7 +11,12 @@ _mnt_fs() { ro_dev=$(losetup --find --show --read-only "${img}") echo ${ro_dev} >> /run/archiso/used_block_devices ro_dev_size=$(blockdev --getsz ${ro_dev}) - rw_dev_size=$((ro_dev_size*cowfile_size/100)) + if [[ "${cowfile_size}" == "100" ]]; then + rw_dev_size=${ro_dev_size} + else + # size calculation done in this way to avoid integer overflow when ro_dev_size is > 10.2G + rw_dev_size=$((ro_dev_size/100*cowfile_size)) + fi if [[ "${cow_persistent}" == "P" ]]; then if [[ -f "/run/archiso/cowspace/${cow_directory}/${img_name}.cow" ]]; then -- 1.8.1
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Gerardo Exequiel Pozzi