Date: Sun, 14 Dec 2025 19:48:24 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 289017] [lagg] A time-of-check to time-of-use (TOCTOU) race exists in the Link Aggregation (LAGG) network subsystem Message-ID: <bug-289017-7501-oJjjRLjTEu@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-289017-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-289017-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=289017 --- Comment #9 from Gui-Dong Han <hanguidong02@gmail.com> --- I believe this race condition can manifest in multiple ways depending on the exact timing. Potential scenarios include a NULL pointer dereference within lagg_proto_start (specifically when the protocol is LAGG_PROTO_NONE) and the lagg_lacp_start crash shown above. These are likely just examples of many potential failure points caused by this synchronization issue. -- You are receiving this mail because: You are the assignee for the bug.help
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