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(parent: 3a142ed) | patch
get rid of unprotected dereferencing of mnt->mnt_ns
authorAl Viro <viro@zeniv.linux.org.uk>
Sat, 23 Feb 2013 03:45:42 +0000 (22:45 -0500)
committerAl Viro <viro@zeniv.linux.org.uk>
Sat, 23 Feb 2013 04:31:05 +0000 (23:31 -0500)
commit9b40bc90abd126bcc5da5658059b8e72e285e559
treeb360cf7d9cf1f7e29f5f6b9c0193fbd1a75334a6tree | snapshot (tar.gz zip)
parent3a142ed962958d3063f648738a3384ab90017100commit | diff
get rid of unprotected dereferencing of mnt->mnt_ns

It's safe only under namespace_sem or vfsmount_lock; all places
in fs/namespace.c that want mnt->mnt_ns->user_ns actually want to use
current->nsproxy->mnt_ns->user_ns (note the calls of check_mnt() in
there).

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/namespace.c diff | blob | blame | history