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| author | Andy Lutomirski <luto@amacapital.net> | 2014-06-10 21:45:42 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-10 22:57:22 +0200 |
| commit | 23adbe12ef7d3d4195e80800ab36b37bee28cd03 (patch) | |
| tree | 000f8f8b3172aa6629b7c9a4148a96549a07acb6 /fs/direct-io.c | |
| parent | Merge branch 'for-3.16' of git://linux-nfs.org/~bfields/linux (diff) | |
| download | linux-23adbe12ef7d3d4195e80800ab36b37bee28cd03.tar.xz linux-23adbe12ef7d3d4195e80800ab36b37bee28cd03.zip | |
fs,userns: Change inode_capable to capable_wrt_inode_uidgid
The kernel has no concept of capabilities with respect to inodes; inodes
exist independently of namespaces. For example, inode_capable(inode,
CAP_LINUX_IMMUTABLE) would be nonsense.
This patch changes inode_capable to check for uid and gid mappings and
renames it to capable_wrt_inode_uidgid, which should make it more
obvious what it does.
Fixes CVE-2014-4014.
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Serge Hallyn <serge.hallyn@ubuntu.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: stable@vger.kernel.org
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/direct-io.c')
0 files changed, 0 insertions, 0 deletions