YouGov/Times - CON 43, LAB 38, LDEM 8
The latest YouGov poll for the Times has topline figures of CON 43%(+3), LAB 38%(-2), LDEM 8%(-1). The five point Conservative lead is the largest YouGov have shown since the general election.
The fieldwork was at the start of the week, so it is possible that this reflects a bump in government support from the Syria bombing - certainly "security and defence" has risen significantly on the question of what the most important issues facing the country are, up 5 points to 27%, the highest since July last year. While the bombing itself was not popular, polls did still find that people trusted Theresa May more to handle it than they did Jeremy Corbyn, so it's plausible that an increase in the salience of security could boost the Tories. On the other hand, the changes are within the margin of error, so the increased lead may very well represent no more than normal random variation. Even if it is the impact of Syria and the lead is down to security increasing in salience, it will probably fade away once the political agenda moves onto something else.
It's also worth noting that the fieldwork was before the row over the government's handling of the immigration status of the Windrush generation so won't take into account any impact from that (personally I suspect neither Syria nor the Windrush row will make any long term difference - voting intention seems to be very steady around neck-and-neck).
Full tabs for the poll are here.