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Florian Westphal
020f6cc5f7
netfilter: conntrack: avoid use-after free on rmmod
When the conntrack module is removed, we call nf_ct_iterate_destroy via nf_ct_l4proto_unregister(). Problem is that nf_conntrack_proto_fini() gets called after the conntrack hash table has already been freed. Just remove the l4proto unregister call, its unecessary as the nf_ct_protos[] array gets free'd right after anyway. v2: add comment wrt. missing unreg call. Fixes: a0ae2562c6c4b2 ("netfilter: conntrack: remove l3proto abstraction") Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.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. See Documentation/00-INDEX for a list of what is contained in each file. 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.
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