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| Filename | Latest commit message | Latest commit date |
|---|---|---|
76307bb571
commit b81296591c567b12d3873b05a37b975707959b94 upstream.
Replace kmalloc() followed by copy_from_user() with memdup_user() to fix
a memory leak that occurs when copy_from_user(buff[sg_used],,) fails and
the 'cleanup1:' path does not free the memory for 'buff[sg_used]'. Using
memdup_user() avoids this by freeing the memory internally.
Since memdup_user() already allocates memory, use kzalloc() in the else
branch instead of manually zeroing 'buff[sg_used]' using memset(0).
Cc: stable@vger.kernel.org
Fixes:
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| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
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| net | ||
| samples | ||
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| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
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| Kbuild | ||
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| 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.