[Bug 230498] Fatal trap 12: page fault while in kernel mode in sysctl_dumpentry from sysctl NET_RT_DUMP
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Thu Nov 22 06:36:09 UTC 2018
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230498
Andrey V. Elsukov <ae at FreeBSD.org> changed:
What |Removed |Added
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Attachment #199372|0 |1
is obsolete| |
--- Comment #15 from Andrey V. Elsukov <ae at FreeBSD.org> ---
Created attachment 199444
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=199444&action=edit
Proposed patch (for stable/12+)
Simplify the patch, remove the check for IFF_UP.
ifnet pointer should be safe to dereference while we in NET_EPOCH section.
Also, since if_addr now kept unchanged, it is safe to dereference it too.
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