821720b9f3
The updated XTS code fails to check the return code of skcipher_walk_virt,
which may lead to skcipher_walk_abort() or skcipher_walk_done() being called
while the walk argument is in an inconsistent state.
So check the return value after each such call, and bail on errors.
Fixes: 2481104fe98d ("crypto: x86/aes-ni-xts - rewrite and drop indirections via glue helper")
Reported-by: Dave Hansen <dave.hansen@intel.com>
Reported-by: syzbot <syzbot+5d1bad8042a8f0e8117a@syzkaller.appspotmail.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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.