Date: Thu, 26 Feb 2015 14:58:17 -0500 From: Daniel Micay <danielmicay@...il.com> To: oss-security@...ts.openwall.com CC: sstewartgallus00@...angara.bc.ca, ryao@...too.org Subject: Re: CVE request: Linux kernel silently ignores MS_RDONLY for bind mounts The commit adding this in 2.6.26 did actually document the weird behaviour, so I guess it's just "by design". Users of the API like LXC, Docker and systemd would likely have to iterate over /proc/self/mounts and remount everything due to the way MS_REC works. Anyway, there's clearly something wrong here when containers are claiming to have a read-only mount feature but writes to the directory tree aren't prevented... Download attachment "signature.asc" of type "application/pgp-signature" (820 bytes)
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