Messages in this thread | | | Date | Fri, 26 Nov 2021 00:34:04 -0500 | From | Qian Cai <> | Subject | Re: BUG: KASAN: use-after-free in dec_rlimit_ucounts |
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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/
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
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