Re: KASAN: use-after-free Write in check_noncircular
From: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Date: 2019-07-17 10:14:46
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This is not a TOMOYO's bug. But On 2019/07/17 17:58, syzbot wrote:
================================================================== BUG: KASAN: use-after-free in check_noncircular+0x91/0x560 kernel/locking/lockdep.c:1722 Write of size 56 at addr ffff888089815160 by task syz-executor.4/8772 CPU: 1 PID: 8772 Comm: syz-executor.4 Not tainted 5.2.0+ #31 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace:
what happened here? No trace was printed to console output?
Allocated by task 8457: