99a55d8a7f
commit 1d9a7acd3d1e74c2d150d8934f7f55bed6d70858 upstream. The timeout pointer can be NULL which means we should modify the per-nets timeout instead. All do this, except sctp and dccp which instead give: general protection fault: 0000 [#1] PREEMPT SMP KASAN net/netfilter/nf_conntrack_proto_dccp.c:682 ctnl_timeout_parse_policy+0x150/0x1d0 net/netfilter/nfnetlink_cttimeout.c:67 cttimeout_default_set+0x150/0x1c0 net/netfilter/nfnetlink_cttimeout.c:368 nfnetlink_rcv_msg+0xcf2/0xfb0 net/netfilter/nfnetlink.c:229 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477 Reported-by: syzbot+46a4ad33f345d1dd346e@syzkaller.appspotmail.com Fixes: c779e849608a8 ("netfilter: conntrack: remove get_timeout() indirection") Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.