lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Mon, 8 Jul 2013 12:57:48 -0700 From: Stephen Hemminger <stephen@...workplumber.org> To: Eric Dumazet <eric.dumazet@...il.com> Cc: Andrey Vagin <avagin@...nvz.org>, netdev@...r.kernel.org Subject: Re: [PATCH] ip: set the close-on-exec flag for descriptors On Mon, 08 Jul 2013 07:17:16 -0700 Eric Dumazet <eric.dumazet@...il.com> wrote: > On Tue, 2013-06-04 at 09:11 -0700, Stephen Hemminger wrote: > > On Tue, 4 Jun 2013 12:01:14 +0400 > > Andrey Vagin <avagin@...nvz.org> wrote: > > > > > Otherwise a program executed by "ip netns exec" has two extra > > > descriptors. > > > > > > $ ip netns exec test /bin/bash > > > $ lsof -p $$ > > > ... > > > bash 817 root 0u CHR 136,0 0t0 3 /dev/pts/0 > > > bash 817 root 1u CHR 136,0 0t0 3 /dev/pts/0 > > > bash 817 root 2u CHR 136,0 0t0 3 /dev/pts/0 > > > bash 817 root 3u sock 0,6 0t0 13386 protocol: NETLINK > > > bash 817 root 4r REG 0,3 0 4026532155 net > > > bash 817 root 255u CHR 136,0 0t0 3 /dev/pts/0 > > > > Applied > > It seems it could break ip command for old kernels, as SOCK_CLOEXEC is > supported from 2.6.27 > > Not sure if its worth a patch, to do the normal socket() call followed > by legacy fcntl() one. Nevermind, original patch is fine since the set namespace (NR_setns) system call used did not show up into 3.0! -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists