9c95a278ba
With commitdf323337e5("apparmor: Use a memory pool instead per-CPU caches, 2019-05-03"), AppArmor code was converted to use memory pools. In that conversion, a bug snuck into the code that polices bind mounts that causes all bind mounts to fail with -ENOMEM, as we erroneously error out if `aa_get_buffer` returns a pointer instead of erroring out when it does _not_ return a valid pointer. Fix the issue by correctly checking for valid pointers returned by `aa_get_buffer` to fix bind mounts with AppArmor. Fixes:df323337e5("apparmor: Use a memory pool instead per-CPU caches") Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: John Johansen <john.johansen@canonical.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.