On 02/11/2016, 06:32 PM, Willy Tarreau wrote: > Hi Jiri, > > On Thu, Feb 11, 2016 at 02:59:08PM +0100, Jiri Slaby wrote: >> From: willy tarreau <w...@1wt.eu> >> >> 3.12-stable review patch. If anyone has any objections, please let me know. >> >> =============== >> >> [ Upstream commit 712f4aad406bb1ed67f3f98d04c044191f0ff593 ] >> >> It is possible for a process to allocate and accumulate far more FDs than >> the process' limit by sending them over a unix socket then closing them >> to keep the process' fd count low. >> >> This change addresses this problem by keeping track of the number of FDs >> in flight per user and preventing non-privileged processes from having >> more FDs in flight than their configured FD limit. >> >> Reported-by: socketp...@gmail.com >> Reported-by: Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp> >> Mitigates: CVE-2013-4312 (Linux 2.0+) >> Suggested-by: Linus Torvalds <torva...@linux-foundation.org> >> Acked-by: Hannes Frederic Sowa <han...@stressinduktion.org> >> Signed-off-by: Willy Tarreau <w...@1wt.eu> >> Signed-off-by: David S. Miller <da...@davemloft.net> >> Signed-off-by: Jiri Slaby <jsl...@suse.cz> > > A possible issue was reported regarding this patch, and Hannes > implemented a fix that's not yet in mainline. I guess it's > preferable to postpone this patch for now.
Hi, yes definitely. Thanks for noting. For reference: http://article.gmane.org/gmane.linux.kernel/2142236 thanks, -- js suse labs
