On 25.2.2012, at 8.32, Doug Henderson wrote:
[8irgehuq] CVE-2011-1083: Algorithmic denial of service in epoll.
After ksplice automatically installed the above patch on our mail servers, most/all IMAP/POP3 connections began experiencing time-outs trying to connect, or extreme timeouts in the auth procedure.
I'd guess this patch is already in new Linux kernel versions, so other people should have seen any problems caused by it?
Actually, it was only released a couple of days ago (2/21) by redhat for EL 5.8 see: https://rhn.redhat.com/errata/RHSA-2012-0150.html
Yes, but CVE-2011-1083 shows it was reported almost a year ago, so I'd think it was fixed in upstream kernel a long time ago. I'm running in my desktop about 2 months old kernel (from git) and I don't see any problems with it. But yeah, maybe Redhat's patches did it differently than upstream kernel and it broke because of that..