Re: BUG: KASAN: use-after-free in dec_rlimit_ucounts
From: Qian Cai <hidden>
Date: 2021-11-26 05:36:18
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On Wed, Nov 24, 2021 at 04:49:19PM -0500, Qian Cai wrote:
Hmm, I don't know if that or it is just this platfrom is lucky to trigger the race condition quickly, but I can't reproduce it on x86 so far. I am Cc'ing a few arm64 people to see if they have spot anything I might be missing. The original bug report is here: https://lore.kernel.org/lkml/YZV7Z+yXbsx9p3JN@fixkernel.com/ (local)
Okay, I am finally able to reproduce this on x86_64 with the latest mainline as well by setting CONFIG_USER_NS and KASAN on the top of defconfig (I did not realize it did not select CONFIG_USER_NS in the first place). Anyway, it still took less than 5-minute by running: $ trinity -C 48 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel