[Bug 211486] [panic] [IPSec] [IP6] Crash with IPv6 ESP usage
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Tue Aug 2 11:56:59 UTC 2016
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211486
Andrey V. Elsukov <ae at FreeBSD.org> changed:
What |Removed |Added
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Assignee|freebsd-bugs at FreeBSD.org |ae at FreeBSD.org
Status|New |In Progress
--- Comment #4 from Andrey V. Elsukov <ae at FreeBSD.org> ---
Created attachment 173191
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=173191&action=edit
Proposed patch
Can you test this patch? It looks like it should help.
As I understand from your backtrace, your host is going to send TCP ACK via
ip6_output, it handled by ip6_ipsec_output(), due to presence of corresponding
IPSec policy. But, since *ro* pointer is zero and wasn't initialized yet, NULL
pointer dereference occurs in listed by you check. Also ro_flags has 0x1a
offset in the struct route_in6 (fault addres is 0x1a).
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