Re: [PATCH] bridge: mrp: Fix out-of-bounds read in br_mrp_parse

2020-05-25 Thread David Miller
From: Horatiu Vultur Date: Mon, 25 May 2020 09:55:41 + > The issue was reported by syzbot. When the function br_mrp_parse was > called with a valid net_bridge_port, the net_bridge was an invalid > pointer. Therefore the check br->stp_enabled could pass/fail > depending where it was pointing i

Re: [PATCH] bridge: mrp: Fix out-of-bounds read in br_mrp_parse

2020-05-25 Thread Nikolay Aleksandrov
On 25/05/2020 12:55, Horatiu Vultur wrote: > The issue was reported by syzbot. When the function br_mrp_parse was > called with a valid net_bridge_port, the net_bridge was an invalid > pointer. Therefore the check br->stp_enabled could pass/fail > depending where it was pointing in memory. > The fi

[PATCH] bridge: mrp: Fix out-of-bounds read in br_mrp_parse

2020-05-25 Thread Horatiu Vultur
The issue was reported by syzbot. When the function br_mrp_parse was called with a valid net_bridge_port, the net_bridge was an invalid pointer. Therefore the check br->stp_enabled could pass/fail depending where it was pointing in memory. The fix consists of setting the net_bridge pointer if the p