Re: KASAN + CPU soft-hotplug = stack-out-of-bounds at cpuinfo_store_cpu
From: Dmitry Vyukov <dvyukov@google.com>
Date: 2021-11-13 06:49:54
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On Sat, 13 Nov 2021 at 07:07, Qian Cai [off-list ref] wrote:
On Fri, Nov 12, 2021 at 11:50:19PM -0500, Qian Cai wrote:quoted
FYI, running CPU soft-hotplug with KASAN on arm64 defconfig will always trigger a stack-out-of-bounds below.Actually, KASAN is not enough to trigger. It needs some addition debugging options to reproduce. I'll narrow it down later. Anyway, this one will reproduce. http://lsbug.org/tmp/config-bad-14rc1.txt
This may be just a bad format string. But I don't see kernel/printk/printk.c:2264 doing any printk on next-20211110. What's up with line numbers? _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel