tree eb2efa0193cdc7ab6b1f30068571194d0dabf230
parent a10336043b8193ec603ad54bb79cdcd26bbf94b3
author Andrew G. Morgan <morgan@kernel.org> 1200964710 -0800
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1200973181 -0800

Fix filesystem capability support

In linux-2.6.24-rc1, security/commoncap.c:cap_inh_is_capped() was
introduced. It has the exact reverse of its intended behavior. This
led to an unintended privilege esculation involving a process'
inheritable capability set.

To be exposed to this bug, you need to have Filesystem Capabilities
enabled and in use. That is:

- CONFIG_SECURITY_FILE_CAPABILITIES must be defined for the buggy code
  to be compiled in.

- You also need to have files on your system marked with fI bits raised.

Signed-off-by: Andrew G. Morgan <morgan@kernel.org>

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@akpm@linux-foundation.org>