c5ccff7050
valis says: ==================== net/sched Bind logic fixes for cls_fw, cls_u32 and cls_route Three classifiers (cls_fw, cls_u32 and cls_route) always copy tcf_result struct into the new instance of the filter on update. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free. This patch set fixes this issue in all affected classifiers by no longer copying the tcf_result struct from the old filter. ==================== Link: https://lore.kernel.org/r/20230729123202.72406-1-jhs@mojatatu.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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.