| commit | 9b40bc90abd126bcc5da5658059b8e72e285e559 | |
| author | Al Viro <viro@zeniv.linux.org.uk> | |
| Sat, 23 Feb 2013 03:45:42 +0000 (22 22:45 -0500) | ||
| committer | Al Viro <viro@zeniv.linux.org.uk> | |
| Sat, 23 Feb 2013 04:31:05 +0000 (22 23:31 -0500) | ||
| tree | b360cf7d9cf1f7e29f5f6b9c0193fbd1a75334a6 | treesnapshot (tar.gz zip) |
| parent | 3a142ed962958d3063f648738a3384ab90017100 | commitdiff |
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>
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 | diffblobblamehistory |