https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230498
Andrey V. Elsukov <a...@freebsd.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #199444|0 |1
is obsolete| |
--- Comment #17 from Andrey V. Elsukov <a...@freebsd.org> ---
Created attachment 199449
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=199449&action=edit
Proposed patch
I think this patch can be used for both FreeBSD 12 and 11. Use
IFNET_RLOCK_NOSLEEP() to protect from interface destroying during routes
iteration. In if_detach_internal() mark interface as dying just after we remove
it from the ifnets list. In sysctl_dumpentry() add the check, that interface
was not destroyed before doing the access.
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