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| Filename | Latest commit message | Latest commit date |
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dd540f2d7c
[ Upstream commit 8433856947217ebb5697a8ff9c4c9cad4639a2cf ]
The IS_ERR_OR_NULL() function has two conditions and if we got really
unlucky we could hit a race where "ptr" started as an error pointer and
then was set to NULL. Both conditions would be false even though the
pointer at the end was NULL.
This patch fixes the problem by ensuring that "*tfm" can only be NULL
or valid. I have introduced a "tmp_tfm" variable to make that work. I
also reversed a condition and pulled the code in one tab.
Reported-by: Roberto Sassu <roberto.sassu@huawei.com>
Fixes: 53de3b080d5e ("evm: Check also if *tfm is an error pointer in init_desc()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Roberto Sassu <roberto.sassu@huawei.com>
Acked-by: Krzysztof Struczynski <krzysztof.struczynski@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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| 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.