Date: Wed, 09 Jan 2019 16:47:37 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 219472] Out of bounds access in vlan Message-ID: <bug-219472-7501-cuCbpLiWTB@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-219472-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-219472-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D219472 --- Comment #3 from commit-hook@freebsd.org --- A commit references this bug: Author: markj Date: Wed Jan 9 16:47:16 UTC 2019 New revision: 342887 URL: https://svnweb.freebsd.org/changeset/base/342887 Log: Stop setting if_linkmib in vlan(4) ifnets. There are several reasons: - The structure being exported via IFDATA_LINKSPECIFIC doesn't appear to be a standard MIB. - The structure being exported is private to the kernel and always has been. - No other drivers in common use set the if_linkmib field. - Because IFDATA_LINKSPECIFIC can be used to overwrite the linkmib structure, a privileged user could use it to corrupt internal vlan(4) state. [1] PR: 219472 Reported by: CTurt <ecturt@gmail.com> [1] Reviewed by: kp (previous version) MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D18779 Changes: head/sys/net/if_vlan.c --=20 You are receiving this mail because: You are on the CC list for the bug.=
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