a2d3cbc80d
In the code for xts_crypt(), we check for the err value returned by skcipher_walk_virt() and return from the function if it is non zero. However, skcipher_walk_virt() can set walk.nbytes to 0, which would cause us to call kernel_fpu_begin(), and then skip the kernel_fpu_end() call. This patch checks for the walk.nbytes value instead, and returns if walk.nbytes is 0. This prevents us from calling kernel_fpu_begin() in the first place and also covers the case of having a non zero err value returned from skcipher_walk_virt(). Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Shreyansh Chouhan <chouhan.shreyansh630@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> |
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|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.