Re: [PATCH] tracing: fix UAF caused by memory ordering issue

Mark Rutland 于2023年11月14日周二 06:17写道： > Hi, Mark and Steven Thank you so much for the detailed comments. > On Sun, Nov 12, 2023 at 11:00:30PM +0800, Kairui Song wrote: > > From: Kairui Song > > > > Following kernel panic was observed when doing ftrace stress test: > > Can you share some more

Re: [PATCH] tracing: fix UAF caused by memory ordering issue

On Sun, Nov 12, 2023 at 11:00:30PM +0800, Kairui Song wrote: > From: Kairui Song > > Following kernel panic was observed when doing ftrace stress test: Can you share some more details: * What test specifically are you running? Can you share this so that others can try to reproduce the issue?

Re: [PATCH] tracing: fix UAF caused by memory ordering issue

On Sun, 12 Nov 2023 23:00:30 +0800 Kairui Song wrote: > From: Kairui Song > > Following kernel panic was observed when doing ftrace stress test: > > Unable to handle kernel paging request at virtual address 9699b0f8ece28240 > Mem abort info: > ESR = 0x9604 > EC = 0x25: DABT

[PATCH] tracing: fix UAF caused by memory ordering issue

From: Kairui Song Following kernel panic was observed when doing ftrace stress test: Unable to handle kernel paging request at virtual address 9699b0f8ece28240 Mem abort info: ESR = 0x9604 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC =